DrNitika Thakur | Shoolini University (original) (raw)
Papers by DrNitika Thakur
Functionalized Nanomaterials Based Devices for Environmental Applications
Abstract Nanotechnology is an emerging multidisciplinary approach that recruits conventional meth... more Abstract Nanotechnology is an emerging multidisciplinary approach that recruits conventional methodologies integrated with advanced innovations in fields like health and diagnostics, electronics, the environment, and so on. To evaluate environmental risks and the pattern of disease pathogenesis, the new and promising field of nanoscience is a “key technology.” It can provide solutions in terms of quick diagnosis and treatment in healthcare by developing cheaper and quicker assessment methods using novel nanoproducts and processes. Novel nanodevices are expected to have a positive impact on human health as well as the environment. In addition, the nanotechnologies in medicine and physiology as well as for evaluating environmental risks efficiently predict nano-level interactions with the subcellular/molecular levels of the body and show a high degree of sensitivity and specificity in understanding targeted drug delivery mechanisms and various risk evaluation analyses. The technology, however, lacks in terms of evidence from advanced clinical trials and scaled-up commercialization to ensure safety and stability. Thus, there is a need for specific studies based on target cells or tissue specificity to increase therapeutic efficacy and safety for more efficient clinical applications, keeping in view the related moral and ethical issues in terms of health security and environmental safety.
SDES-International Journal of Interdisciplinary Research, 2021
South African Journal of Botany
The increase in population and food demand has led to the excessive utilization of chemical ferti... more The increase in population and food demand has led to the excessive utilization of chemical fertilizers. These fertilizers, in turn, affected the soil properties and decreased the fertility of the soil. The side effects of these chemicals have forced scientists to focus on plant growth-promoting rhizobacteria (PGPR) for sustainable farming. Some microbes and plants have a mutual relationship, and they use to help each other in various ways Rhizobacteria that promote plant growth enhance health of the plant and growth by increasing nutrient accessibility and assisting plants during abiotic and biotic stress. By direct or indirect mechanisms, the bacterial releases of volatile organic compounds (VOCs) are crucial in boosting plant development and disease resistance. The release of a range of low-molecular weight hydrocarbons, including the growth-promoting volatile organic compounds, 3-hydroxy-2-butanone (acetone), 2,3-butanediol, 2-pentylfuran, or dimethylhexadecylamine, was found by chemical analysis of bacterial volatile emissions. The plants provide nutrients and shelter to the microbes. Therefore, PGPRs play a vital role in sustainable agriculture In this review, the mechanism of action of VOCs for growth promotion and how they trigger the plant defense mechanism during biotic and abiotic stress will be addressed.This review will addressthe mechanism of action of VOCs for growth promotion and how they trigger the plant defense mechanism during biotic and abiotic stress.
Nanotechnology for Environmental Engineering
The present studies conducted during the years (2011–13) gives an overview of investigating the i... more The present studies conducted during the years (2011–13) gives an overview of investigating the impact of organic and inorganic agriculture systems on the soil health, productivity and food nutritional values. The organic treatments [T1-T6 (organic treatments) T7 (control)] integrated the use of organic manures (FYM (200 q/ha) and VC (50 q/ha), biofertilisers (Azotobacter, Azospirillum and PSB 4 kg/ha each), Biocontrol agents (Trichoderma viridae (4 kg/ha), Trichoderma herzianum and Pseudomonas flourescens10 g/l water each), Barrier and cover crops, pheromone and yellow sticky traps, green manuring and crop rotation etc, whereas the conventional treatment(control) implemented the use of chemical fertilisers (FYM 250 q/ha + chemical fertilisers (CAN 650 kg/ha, urea) 650 kg/ha + pesticides (40–50 no. of sprays). The results confirmed the presence of higher soil NPK status (413.1 kg/ha, 26.33 kg/ha and 285.4 kg/ha) and OC (0.99 %). The GCMS results showed lesser pesticide residues (8.3...
The Endophytic Symbiotic Association (ESA) has proven as an important tool in uplifting various a... more The Endophytic Symbiotic Association (ESA) has proven as an important tool in uplifting various areas related to crop productivity, nutritional profile, issues related to sustainability, food quality, and security. These beneficial associations have highlighted the burning scenario that is generally equipped with the conventional and chemical cultivation patterns, but moving toward a safe area which includes the use of EPHs (Enhanced Plant Holobionts) consortiums is a best choice toward a sustainable agriculture. The use of these types of associates with mutualistic associations have benefited the host in terms of increased uptake of nitrogen, efficient utilization of nutrients, increased photosynthetic activity and levels, introducing a systemic resistance toward various plant pathogens, pests, and diseases. Secretion of osmoprotectant, decreasing the availability of ROS (Reactive Oxygen Species) and finally leading to enhanced plant growth, crop productivity, and yields. Further, ...
The chapter deals with the increasing threat of various diseases, insects and pests to litchi gro... more The chapter deals with the increasing threat of various diseases, insects and pests to litchi growers and their management by an integrated IPM approach. Litchi plants are generally least affected by the action of pathogens as compared to other fruits. The incidence of diseases is more prominent after the harvest stage, but many may be attacked at the time of picking. A number of organisms are associated with infection of leaves, flowers and fruit, resulting in tree decline and death. It has been reported that the fungal pathogens are more responsible for diseases. Enormous losses to litchi have been reported from pests and insects through direct infection on plant parts. Chemical use is an important traditional practice to fight against pests. To upgrade the lychee fruit quality, a more advanced technological intervention is necessary which can be achieved by the integration of conventional methods of practices with biocontrol methods. The new approach is referred as integrated pes...
Thakur, N. (2018). Heat stability and antioxidant potential of beta-carotene isolated from a fung... more Thakur, N. (2018). Heat stability and antioxidant potential of beta-carotene isolated from a fungal isolate. Bulgarian Journal of Agricultural Science, 24(5), 891–896 The present study has been conducted for optimizations of disruption, extraction, partial purifi cation and properties of betacarotene produced from a strain of Mucor (M. azygosporus).The major fi ndings of the study conducted highlight maximum cell disruption while macerating cells with DMSO, diatomaceous earth or glass beads in mortar and pestle. The maximum extraction yield was seen in a method that involve extraction using hexane and ethyl acetate (1:1 v/v) after disruption. This method gave the best result due to the highest extraction effi ciency within short extraction time. The antioxidant activity was found to increase with concentrating of extract whereas the pigment stability was seen to decrease abruptly with temperature.
In Silico Approach for Sustainable Agriculture, 2018
Agricultural sustainability and competitiveness of organic markets are the interlinked areas whic... more Agricultural sustainability and competitiveness of organic markets are the interlinked areas which jointly needs a serious makeover. In silico approaches generally highlight an insight to the use of signature sequences (promoter elements) and other related flanking elements. Agricultural sector mainly organic sector needs to be linked with modern techniques which can elevate its level and provides a clear explanation about the drawbacks and sources of improvement. The following chapter deals with the association of modern techniques like nanotechnology which can be linked further with agricultural problems to elevate conditions like sustainability and competitiveness of organic markets. Taking into account the various deleterious effects of conventional farming, the need of the hour demands for a technological interventional related with eco-friendly techniques like “green technology,” so that we can improve the status of organic markets and can easily understand the loopholes associated with traditional methodology which are followed by the farmers. Agriculture, natural resources, and food have been always linked to burning challenges (sustainability, susceptibility, human health). The aim of integrating techniques like using nanomaterials in agriculture is to bring reductions in levels of chemicals used, minimize nutrient losses during fertilization, and increase yield.
Advanced Materials Letters, 2021
Nanoparticles (NPs) are strong colloidal particles with diameters ranging from 1nm-100 nm. They c... more Nanoparticles (NPs) are strong colloidal particles with diameters ranging from 1nm-100 nm. They comprise of macromolecular materials and can be utilized therapeutically as adjuvant in immunizations or as medication transporters. In this paper two fundamental sorts of nanoparticles are discussed i.e., metallic nanoparticle and polymeric nanoparticle. Metallic nanoparticle is nanosized metals with measurements (length, width, thickness) inside the size range of 1nm-100nm. The properties, advantages, disadvantages and characteristics of metal nanomaterials are discussed in brief in this review. Polymers are the most common materials for constructing nanoparticle-based drug carriers. Polymers used to form nanoparticles can be both synthetic and natural polymers. This review summarizes the synthesis and fabrication of nanomaterials. It describes about synthesis of metallic and polymeric nanomaterials as well as synthesis of quantum dots. It gives insights of fabrication of nanomaterials. Applications of nanomaterials are also included in this review mainly focusing on biosensor, gas sensor, wastewater treatment and environmental applications. The tunable surface and optical properties of nanomaterials make the perfect contender for biosensing including the analysis of ailments, cellular imaging of cancerous cell and so on. Gas sensors have been utilized in numerous applications like monitoring the oxygen content in fuel mixture, observing food decay, health monitoring etc. Nanomaterials offer the potential for the productive expulsion of pollutants and biological contaminants thus extremely valuable in environment and wastewater treatment. Nanomaterials are highly recommended in future for these properties, mainly for their use in healthcare sector.
Agricultural Science Digest - A Research Journal, 2020
Background: Pleurotus species constitutes one of the choicest edible mushrooms, it is commonly kn... more Background: Pleurotus species constitutes one of the choicest edible mushrooms, it is commonly known as “Oyster Mushroom” and in India it is commonly called as “Dhingri. It has important medicinal, biotechnological properties and environmental applications. Its cultivation can be done on a number of agricultural wastes and organic waste materials. There are significant problems in classifying Pleurotus isolates using only morphological characters which are often unreliable and inconclusive mainly due to the large influence exerted by environmental factors. Methods: A wild isolate of Pleurotus was collected from North western Himalayas and its identity was confirmed by molecular studies. Yield, nutritional components and its bioactive molecules were compared with the cultivated isolate of Pleurotus djamore Antibacterial activities of both the isolates of were performed against Escherichia coli and Staphylococcus aureus by disc diffusion. Results: Molecular studies confirmed the ident...
Journal of Pure and Applied Microbiology, 2018
Food quality and safety are of concern to every individual. Quality can be considered as a comple... more Food quality and safety are of concern to every individual. Quality can be considered as a complex characteristic of food that determines its value or acceptability to a consumer. Consumer awareness of the relationship between foods and health together with environmental concerns has led to an increased demand for organically produced food. The post harvest products of tomato are being consumed in form of tomato ketchup. Keeping in view the quality and safety of consumers the following studies were undertaken to evaluate the food safety in tomato ketchup prepared from organic and conventionally grown tomato cultivar (Solan Lalima). The organic and conventional tomato ketchup was analyzed for microbiological spoilage and safety parameters at every 20 day interval, during storage. For enumeration of microorganisms present in each sample, 10-fold serial dilutions was followed and the colonies were counted on nutrient agar media after 24 h incubation at 37ºC at 20 day time interval. The shelf life of the organic sauce was found to be over 20 days then the control sample. It can be concluded that, the organic system of cultivation is good for environment, human health having attractive returns to the farmers.
Bhartiya Krishi Anusandhan Patrika, 2018
Pea is most popular and widely grown, annual pulse grain playing an important role in the upliftm... more Pea is most popular and widely grown, annual pulse grain playing an important role in the upliftment of the economy of hilly area farmers. The application of chemical pesticides have increased in recent time, but has gradually contributed to increased environmental hazards, soil deterioration, thus disturbing the beneficial microbes and biological balance, leading to various dreadful diseases like cancer. Keeping in view the above burning criteria, the studies were conducted focusing on the in-conversion phase of a chemical cultivation system to an organic cultivation system. The results highlight the various parameters like soil health and pesticide residual analysis and their differential behaviour in both the systems (Chemical and Organic). A baseline survey was conducted for comparing differences in behaviour of farmers towards in-conversion phase for which SOGG group (Salogara Organic Growing Group) of Solan-HP was taken in to account, whereas Basal area farmers were selected o...
Asian Journal of Pharmaceutical and Clinical Research, 2019
Curcumin, the main bioactive compound found in turmeric rhizomes, has a wide variety of applicati... more Curcumin, the main bioactive compound found in turmeric rhizomes, has a wide variety of applications in the clinical field that is why it attracts researchers from all over the world. While there are various studies on curcumin extraction and quantification, comparison of curcumin content according to the soil profile and cultivation period has not been performed yet in our knowledge. Curcumin to be a genuine natural product having impressive anti-oxidant and anti-inflammatory properties, treating a wide range of diseases. Curcumin is a special gift to humans given by mother-nature to help them curing many diseases. Turmeric, the plant containing a significant amount of this molecule, has been used for many centuries as a traditional medicine to cure skin problems, digestive issues, as painkiller, and much more. From the past two centuries, scientists found many applications of this molecule in the clinical field. There are still many properties of this wonder drug that need to be d...
International Journal of Advanced Research, 2018
university of biotechnology and Management sciences(Himachal Pradesh).
Asian Journal of Pharmaceutical and Clinical Research, 2018
Objective: The present study focuses on exploring the antimicrobial potential of chemical (Tobast... more Objective: The present study focuses on exploring the antimicrobial potential of chemical (Tobastar and natamycin) and herbal eye drops (Itone) which are specifically preferred against neonatal eye infections.Methods: Well diffusion method (for testing the antimicrobial potential of selected eye drops against different bacterial and fungal strains), minimum inhibitory concentration (MIC) (broth dilution method) for detecting the MIC effective against various strains taken into consideration.Results: The results indicated that Itone and Tobastar are effective against bacterial strains, thus highlighting the importance of these two eye drops against bacterial infections, whereas natamycin is effective against fungal infection.Conclusion: It may be concluded that the herbal eye drop (Itone) and the chemical eye drop (Tobastar) are effective against bacterial infections. The components such as neem, tulsi, kapur, and honey in herbal composition possess good antibacterial activity confir...
Agricultural Sciences, 2015
Disease management is often complicated by the presence of multiple types of pathogens; in an org... more Disease management is often complicated by the presence of multiple types of pathogens; in an organic system, it is appropriate to develop disease control strategies. The available literature so far reflects that the management of important disease of tomato is through the integrated approaches and very few organic approaches have been tried with various degree of success. Boiopriming of seeds with biocontrol agents (Trichoderma viridae, Trichoderma harzianum and Pseudomonas fluorescens) in combination with different biofertilizers (Azotobacter, Azospirillum and PSB) and organic manures (FYM and vermi-compost) were tested against disease incidence and health management of tomato seedling under nursery as well as field conditions. The studies were conducted during two successive years (2012-2013) at farmer's field with the objective to combat with the increasing disease incidence of three major disease damping-off, fusarium wilt and buckeye rot from nursery stage to the final harvesting. The study focused on the use of biocontrol agents as the suitable alternative to chemical pesticides with sustainable disease management without pesticide residues in foodstuff. The bio priming of seeds with fungal antagonist Trichoderma viridae and harzianum and bacterial antagonist Pseudomonas fluorescens significantly improved the germination behavior of tomato seeds as compared to untreated control. Highest mean germination (93.1%) and seedling vigour (953.33) was recorded in Treatment 3 (FYM @ 200 q/ ha + Azospirillum + PSB + Trichoderma herzianum (4 kg/ha each) and lowest in control (60.3%) and (304.83), thus indicating a significant per cent increase in seedling emergence (54.4%) and seedling vigour (95.23%). A considerable reduction in disease incidence (pre and post) of damp-* Corresponding author. N. Thakur, A. Tripathi 536 ing off was observed in treatment T₃ and T₄ (VC @ 50 q/ha + Azospirillum + PSB + Trichoderma herzianum @ (4 kg/ha) with 45.6% and 35.4% respectively). Treatment T₃ proved highest in terms of yield (665 Kg/Ha), Hence these diseases can be managed by successful application of Biocontrol agents.
Probiotics in Agroecosystem, 2017
The organic amendments that were witnessed in the "green phase" during the 1960s boosted food pro... more The organic amendments that were witnessed in the "green phase" during the 1960s boosted food production, but at the expense of environmental sustainability. These methods increased food production but ultimately disturbed the physical, chemical, and biological properties of soil over years of use. The beneficial soil organisms were exploited and the power of "biological resistance" in crops was reduced, making them more prone to pests and diseases. As a result, no part of the world is left free of harmful pesticide residues today. Over time, it was realized that these residues are toxic for soil and society. Use of chemical fertilizers has not only led to sensational increases in the quality and quantity of crops, but has also resulted in the alteration of the total soil profile resulting in a reduction of beneficial microbes leading to an imbalance in ecology. This has ultimately devastated the resources of farmers, who are the building the path of our nation. Excessive use of non-renewable energy chemicals often tends to destroy the physiochemical properties of soil, reduce friendly predators, and enhance residual hazards in seeds and to human health and the environment. The use of beneficial microbial inoculants along with organic manures is considered to be an alternative requirement for crops. The technological approaches to the use of organic manures and biofertilizers in farming have proved to be effective means of upgrading soil structure, increasing water-holding capacity, enhancing soil fertility, and increasing crop yields. On the whole it can be deduced from the present studies that by integrating correct combinations of organic production technologies, production levels comparable to conventional practices can be achieved in tomato crops with improved soil-nutrient status and productivity.
the level of adaptations in technology that research professionals display toward their public he... more the level of adaptations in technology that research professionals display toward their public health preventive models. We should compile a representative data set of adaptations that humans can consider for transmission control and adopt for viruses and their hosts. Overall, there are many aspects of the chemical science and technology in virus preventive measures. Herein, the most recent advances in this context are discussed, and the possible reasons behind the sustainable preventive model are presented. This kind of sustainable preventive model having adaptation and implementation with green chemistry system will reduce the shedding of the virus into the community by eco-friendly methods, and thus the risk of transmission and infection progression can be mitigated.
Functionalized Nanomaterials Based Devices for Environmental Applications
Abstract Nanotechnology is an emerging multidisciplinary approach that recruits conventional meth... more Abstract Nanotechnology is an emerging multidisciplinary approach that recruits conventional methodologies integrated with advanced innovations in fields like health and diagnostics, electronics, the environment, and so on. To evaluate environmental risks and the pattern of disease pathogenesis, the new and promising field of nanoscience is a “key technology.” It can provide solutions in terms of quick diagnosis and treatment in healthcare by developing cheaper and quicker assessment methods using novel nanoproducts and processes. Novel nanodevices are expected to have a positive impact on human health as well as the environment. In addition, the nanotechnologies in medicine and physiology as well as for evaluating environmental risks efficiently predict nano-level interactions with the subcellular/molecular levels of the body and show a high degree of sensitivity and specificity in understanding targeted drug delivery mechanisms and various risk evaluation analyses. The technology, however, lacks in terms of evidence from advanced clinical trials and scaled-up commercialization to ensure safety and stability. Thus, there is a need for specific studies based on target cells or tissue specificity to increase therapeutic efficacy and safety for more efficient clinical applications, keeping in view the related moral and ethical issues in terms of health security and environmental safety.
SDES-International Journal of Interdisciplinary Research, 2021
South African Journal of Botany
The increase in population and food demand has led to the excessive utilization of chemical ferti... more The increase in population and food demand has led to the excessive utilization of chemical fertilizers. These fertilizers, in turn, affected the soil properties and decreased the fertility of the soil. The side effects of these chemicals have forced scientists to focus on plant growth-promoting rhizobacteria (PGPR) for sustainable farming. Some microbes and plants have a mutual relationship, and they use to help each other in various ways Rhizobacteria that promote plant growth enhance health of the plant and growth by increasing nutrient accessibility and assisting plants during abiotic and biotic stress. By direct or indirect mechanisms, the bacterial releases of volatile organic compounds (VOCs) are crucial in boosting plant development and disease resistance. The release of a range of low-molecular weight hydrocarbons, including the growth-promoting volatile organic compounds, 3-hydroxy-2-butanone (acetone), 2,3-butanediol, 2-pentylfuran, or dimethylhexadecylamine, was found by chemical analysis of bacterial volatile emissions. The plants provide nutrients and shelter to the microbes. Therefore, PGPRs play a vital role in sustainable agriculture In this review, the mechanism of action of VOCs for growth promotion and how they trigger the plant defense mechanism during biotic and abiotic stress will be addressed.This review will addressthe mechanism of action of VOCs for growth promotion and how they trigger the plant defense mechanism during biotic and abiotic stress.
Nanotechnology for Environmental Engineering
The present studies conducted during the years (2011–13) gives an overview of investigating the i... more The present studies conducted during the years (2011–13) gives an overview of investigating the impact of organic and inorganic agriculture systems on the soil health, productivity and food nutritional values. The organic treatments [T1-T6 (organic treatments) T7 (control)] integrated the use of organic manures (FYM (200 q/ha) and VC (50 q/ha), biofertilisers (Azotobacter, Azospirillum and PSB 4 kg/ha each), Biocontrol agents (Trichoderma viridae (4 kg/ha), Trichoderma herzianum and Pseudomonas flourescens10 g/l water each), Barrier and cover crops, pheromone and yellow sticky traps, green manuring and crop rotation etc, whereas the conventional treatment(control) implemented the use of chemical fertilisers (FYM 250 q/ha + chemical fertilisers (CAN 650 kg/ha, urea) 650 kg/ha + pesticides (40–50 no. of sprays). The results confirmed the presence of higher soil NPK status (413.1 kg/ha, 26.33 kg/ha and 285.4 kg/ha) and OC (0.99 %). The GCMS results showed lesser pesticide residues (8.3...
The Endophytic Symbiotic Association (ESA) has proven as an important tool in uplifting various a... more The Endophytic Symbiotic Association (ESA) has proven as an important tool in uplifting various areas related to crop productivity, nutritional profile, issues related to sustainability, food quality, and security. These beneficial associations have highlighted the burning scenario that is generally equipped with the conventional and chemical cultivation patterns, but moving toward a safe area which includes the use of EPHs (Enhanced Plant Holobionts) consortiums is a best choice toward a sustainable agriculture. The use of these types of associates with mutualistic associations have benefited the host in terms of increased uptake of nitrogen, efficient utilization of nutrients, increased photosynthetic activity and levels, introducing a systemic resistance toward various plant pathogens, pests, and diseases. Secretion of osmoprotectant, decreasing the availability of ROS (Reactive Oxygen Species) and finally leading to enhanced plant growth, crop productivity, and yields. Further, ...
The chapter deals with the increasing threat of various diseases, insects and pests to litchi gro... more The chapter deals with the increasing threat of various diseases, insects and pests to litchi growers and their management by an integrated IPM approach. Litchi plants are generally least affected by the action of pathogens as compared to other fruits. The incidence of diseases is more prominent after the harvest stage, but many may be attacked at the time of picking. A number of organisms are associated with infection of leaves, flowers and fruit, resulting in tree decline and death. It has been reported that the fungal pathogens are more responsible for diseases. Enormous losses to litchi have been reported from pests and insects through direct infection on plant parts. Chemical use is an important traditional practice to fight against pests. To upgrade the lychee fruit quality, a more advanced technological intervention is necessary which can be achieved by the integration of conventional methods of practices with biocontrol methods. The new approach is referred as integrated pes...
Thakur, N. (2018). Heat stability and antioxidant potential of beta-carotene isolated from a fung... more Thakur, N. (2018). Heat stability and antioxidant potential of beta-carotene isolated from a fungal isolate. Bulgarian Journal of Agricultural Science, 24(5), 891–896 The present study has been conducted for optimizations of disruption, extraction, partial purifi cation and properties of betacarotene produced from a strain of Mucor (M. azygosporus).The major fi ndings of the study conducted highlight maximum cell disruption while macerating cells with DMSO, diatomaceous earth or glass beads in mortar and pestle. The maximum extraction yield was seen in a method that involve extraction using hexane and ethyl acetate (1:1 v/v) after disruption. This method gave the best result due to the highest extraction effi ciency within short extraction time. The antioxidant activity was found to increase with concentrating of extract whereas the pigment stability was seen to decrease abruptly with temperature.
In Silico Approach for Sustainable Agriculture, 2018
Agricultural sustainability and competitiveness of organic markets are the interlinked areas whic... more Agricultural sustainability and competitiveness of organic markets are the interlinked areas which jointly needs a serious makeover. In silico approaches generally highlight an insight to the use of signature sequences (promoter elements) and other related flanking elements. Agricultural sector mainly organic sector needs to be linked with modern techniques which can elevate its level and provides a clear explanation about the drawbacks and sources of improvement. The following chapter deals with the association of modern techniques like nanotechnology which can be linked further with agricultural problems to elevate conditions like sustainability and competitiveness of organic markets. Taking into account the various deleterious effects of conventional farming, the need of the hour demands for a technological interventional related with eco-friendly techniques like “green technology,” so that we can improve the status of organic markets and can easily understand the loopholes associated with traditional methodology which are followed by the farmers. Agriculture, natural resources, and food have been always linked to burning challenges (sustainability, susceptibility, human health). The aim of integrating techniques like using nanomaterials in agriculture is to bring reductions in levels of chemicals used, minimize nutrient losses during fertilization, and increase yield.
Advanced Materials Letters, 2021
Nanoparticles (NPs) are strong colloidal particles with diameters ranging from 1nm-100 nm. They c... more Nanoparticles (NPs) are strong colloidal particles with diameters ranging from 1nm-100 nm. They comprise of macromolecular materials and can be utilized therapeutically as adjuvant in immunizations or as medication transporters. In this paper two fundamental sorts of nanoparticles are discussed i.e., metallic nanoparticle and polymeric nanoparticle. Metallic nanoparticle is nanosized metals with measurements (length, width, thickness) inside the size range of 1nm-100nm. The properties, advantages, disadvantages and characteristics of metal nanomaterials are discussed in brief in this review. Polymers are the most common materials for constructing nanoparticle-based drug carriers. Polymers used to form nanoparticles can be both synthetic and natural polymers. This review summarizes the synthesis and fabrication of nanomaterials. It describes about synthesis of metallic and polymeric nanomaterials as well as synthesis of quantum dots. It gives insights of fabrication of nanomaterials. Applications of nanomaterials are also included in this review mainly focusing on biosensor, gas sensor, wastewater treatment and environmental applications. The tunable surface and optical properties of nanomaterials make the perfect contender for biosensing including the analysis of ailments, cellular imaging of cancerous cell and so on. Gas sensors have been utilized in numerous applications like monitoring the oxygen content in fuel mixture, observing food decay, health monitoring etc. Nanomaterials offer the potential for the productive expulsion of pollutants and biological contaminants thus extremely valuable in environment and wastewater treatment. Nanomaterials are highly recommended in future for these properties, mainly for their use in healthcare sector.
Agricultural Science Digest - A Research Journal, 2020
Background: Pleurotus species constitutes one of the choicest edible mushrooms, it is commonly kn... more Background: Pleurotus species constitutes one of the choicest edible mushrooms, it is commonly known as “Oyster Mushroom” and in India it is commonly called as “Dhingri. It has important medicinal, biotechnological properties and environmental applications. Its cultivation can be done on a number of agricultural wastes and organic waste materials. There are significant problems in classifying Pleurotus isolates using only morphological characters which are often unreliable and inconclusive mainly due to the large influence exerted by environmental factors. Methods: A wild isolate of Pleurotus was collected from North western Himalayas and its identity was confirmed by molecular studies. Yield, nutritional components and its bioactive molecules were compared with the cultivated isolate of Pleurotus djamore Antibacterial activities of both the isolates of were performed against Escherichia coli and Staphylococcus aureus by disc diffusion. Results: Molecular studies confirmed the ident...
Journal of Pure and Applied Microbiology, 2018
Food quality and safety are of concern to every individual. Quality can be considered as a comple... more Food quality and safety are of concern to every individual. Quality can be considered as a complex characteristic of food that determines its value or acceptability to a consumer. Consumer awareness of the relationship between foods and health together with environmental concerns has led to an increased demand for organically produced food. The post harvest products of tomato are being consumed in form of tomato ketchup. Keeping in view the quality and safety of consumers the following studies were undertaken to evaluate the food safety in tomato ketchup prepared from organic and conventionally grown tomato cultivar (Solan Lalima). The organic and conventional tomato ketchup was analyzed for microbiological spoilage and safety parameters at every 20 day interval, during storage. For enumeration of microorganisms present in each sample, 10-fold serial dilutions was followed and the colonies were counted on nutrient agar media after 24 h incubation at 37ºC at 20 day time interval. The shelf life of the organic sauce was found to be over 20 days then the control sample. It can be concluded that, the organic system of cultivation is good for environment, human health having attractive returns to the farmers.
Bhartiya Krishi Anusandhan Patrika, 2018
Pea is most popular and widely grown, annual pulse grain playing an important role in the upliftm... more Pea is most popular and widely grown, annual pulse grain playing an important role in the upliftment of the economy of hilly area farmers. The application of chemical pesticides have increased in recent time, but has gradually contributed to increased environmental hazards, soil deterioration, thus disturbing the beneficial microbes and biological balance, leading to various dreadful diseases like cancer. Keeping in view the above burning criteria, the studies were conducted focusing on the in-conversion phase of a chemical cultivation system to an organic cultivation system. The results highlight the various parameters like soil health and pesticide residual analysis and their differential behaviour in both the systems (Chemical and Organic). A baseline survey was conducted for comparing differences in behaviour of farmers towards in-conversion phase for which SOGG group (Salogara Organic Growing Group) of Solan-HP was taken in to account, whereas Basal area farmers were selected o...
Asian Journal of Pharmaceutical and Clinical Research, 2019
Curcumin, the main bioactive compound found in turmeric rhizomes, has a wide variety of applicati... more Curcumin, the main bioactive compound found in turmeric rhizomes, has a wide variety of applications in the clinical field that is why it attracts researchers from all over the world. While there are various studies on curcumin extraction and quantification, comparison of curcumin content according to the soil profile and cultivation period has not been performed yet in our knowledge. Curcumin to be a genuine natural product having impressive anti-oxidant and anti-inflammatory properties, treating a wide range of diseases. Curcumin is a special gift to humans given by mother-nature to help them curing many diseases. Turmeric, the plant containing a significant amount of this molecule, has been used for many centuries as a traditional medicine to cure skin problems, digestive issues, as painkiller, and much more. From the past two centuries, scientists found many applications of this molecule in the clinical field. There are still many properties of this wonder drug that need to be d...
International Journal of Advanced Research, 2018
university of biotechnology and Management sciences(Himachal Pradesh).
Asian Journal of Pharmaceutical and Clinical Research, 2018
Objective: The present study focuses on exploring the antimicrobial potential of chemical (Tobast... more Objective: The present study focuses on exploring the antimicrobial potential of chemical (Tobastar and natamycin) and herbal eye drops (Itone) which are specifically preferred against neonatal eye infections.Methods: Well diffusion method (for testing the antimicrobial potential of selected eye drops against different bacterial and fungal strains), minimum inhibitory concentration (MIC) (broth dilution method) for detecting the MIC effective against various strains taken into consideration.Results: The results indicated that Itone and Tobastar are effective against bacterial strains, thus highlighting the importance of these two eye drops against bacterial infections, whereas natamycin is effective against fungal infection.Conclusion: It may be concluded that the herbal eye drop (Itone) and the chemical eye drop (Tobastar) are effective against bacterial infections. The components such as neem, tulsi, kapur, and honey in herbal composition possess good antibacterial activity confir...
Agricultural Sciences, 2015
Disease management is often complicated by the presence of multiple types of pathogens; in an org... more Disease management is often complicated by the presence of multiple types of pathogens; in an organic system, it is appropriate to develop disease control strategies. The available literature so far reflects that the management of important disease of tomato is through the integrated approaches and very few organic approaches have been tried with various degree of success. Boiopriming of seeds with biocontrol agents (Trichoderma viridae, Trichoderma harzianum and Pseudomonas fluorescens) in combination with different biofertilizers (Azotobacter, Azospirillum and PSB) and organic manures (FYM and vermi-compost) were tested against disease incidence and health management of tomato seedling under nursery as well as field conditions. The studies were conducted during two successive years (2012-2013) at farmer's field with the objective to combat with the increasing disease incidence of three major disease damping-off, fusarium wilt and buckeye rot from nursery stage to the final harvesting. The study focused on the use of biocontrol agents as the suitable alternative to chemical pesticides with sustainable disease management without pesticide residues in foodstuff. The bio priming of seeds with fungal antagonist Trichoderma viridae and harzianum and bacterial antagonist Pseudomonas fluorescens significantly improved the germination behavior of tomato seeds as compared to untreated control. Highest mean germination (93.1%) and seedling vigour (953.33) was recorded in Treatment 3 (FYM @ 200 q/ ha + Azospirillum + PSB + Trichoderma herzianum (4 kg/ha each) and lowest in control (60.3%) and (304.83), thus indicating a significant per cent increase in seedling emergence (54.4%) and seedling vigour (95.23%). A considerable reduction in disease incidence (pre and post) of damp-* Corresponding author. N. Thakur, A. Tripathi 536 ing off was observed in treatment T₃ and T₄ (VC @ 50 q/ha + Azospirillum + PSB + Trichoderma herzianum @ (4 kg/ha) with 45.6% and 35.4% respectively). Treatment T₃ proved highest in terms of yield (665 Kg/Ha), Hence these diseases can be managed by successful application of Biocontrol agents.
Probiotics in Agroecosystem, 2017
The organic amendments that were witnessed in the "green phase" during the 1960s boosted food pro... more The organic amendments that were witnessed in the "green phase" during the 1960s boosted food production, but at the expense of environmental sustainability. These methods increased food production but ultimately disturbed the physical, chemical, and biological properties of soil over years of use. The beneficial soil organisms were exploited and the power of "biological resistance" in crops was reduced, making them more prone to pests and diseases. As a result, no part of the world is left free of harmful pesticide residues today. Over time, it was realized that these residues are toxic for soil and society. Use of chemical fertilizers has not only led to sensational increases in the quality and quantity of crops, but has also resulted in the alteration of the total soil profile resulting in a reduction of beneficial microbes leading to an imbalance in ecology. This has ultimately devastated the resources of farmers, who are the building the path of our nation. Excessive use of non-renewable energy chemicals often tends to destroy the physiochemical properties of soil, reduce friendly predators, and enhance residual hazards in seeds and to human health and the environment. The use of beneficial microbial inoculants along with organic manures is considered to be an alternative requirement for crops. The technological approaches to the use of organic manures and biofertilizers in farming have proved to be effective means of upgrading soil structure, increasing water-holding capacity, enhancing soil fertility, and increasing crop yields. On the whole it can be deduced from the present studies that by integrating correct combinations of organic production technologies, production levels comparable to conventional practices can be achieved in tomato crops with improved soil-nutrient status and productivity.
the level of adaptations in technology that research professionals display toward their public he... more the level of adaptations in technology that research professionals display toward their public health preventive models. We should compile a representative data set of adaptations that humans can consider for transmission control and adopt for viruses and their hosts. Overall, there are many aspects of the chemical science and technology in virus preventive measures. Herein, the most recent advances in this context are discussed, and the possible reasons behind the sustainable preventive model are presented. This kind of sustainable preventive model having adaptation and implementation with green chemistry system will reduce the shedding of the virus into the community by eco-friendly methods, and thus the risk of transmission and infection progression can be mitigated.
Integrated Approach for the Management of Differential Patterns of Diseases and Pest Incidence in Lychee Thakur, Nitika
Lychee Disease Management Problems and Prospects of Lychee Cultivation in India Kashyap, Amar Singh (et al., 2017
Lychee Disease Management
Probiotics and Plant Health Increased Soil-Microbial-Eco-Physiological Interactions and Microbial Food Safety in Tomato Under Organic Strategies Thakur, Nitika, 2017
Probiotics and Plant Health
Organic Farming, Food Quality, and Human Health: A Trisection of Sustainability and a Move from Pesticides to Eco-friendly Biofertilizers Thakur, Nitika, 2017
In Silico Approach for Sustainable Agriculture https://www.springer.com/978-981-13-0346-3
An Insight through Root-Endophytic-Mutualistic Association in Improving Crop Productivity and Sustainability Thakur, Nitika, 2020
https://www.springer.com/978-3-030-51915-5
Effective land management could better address the issue of diseases in farming thereby addressin... more Effective land management could better address the issue of diseases in farming thereby addressing the issue of food security.Biopriming of seeds with biocontrol agents (Trichoder-ma viridae, Trichoderma harzianum and Pseudomonas fluorescens) in combination with different biofertilisers (Azotobacter, Azospirillum and PSB) and organic manures (FYM and vermi-compost) were tested against disease incidence and health management of tomato seedling under nursery as well as field conditions. The studies were conducted during two successive years (2012-2013) at farmer's field with the objective to combat with the increasing disease incidence of three major disease damping-off, fusarium wilt and buckeye rot from nursery stage to the final harvesting. The study focused on the use of biocontrol agents as the suitable alternative to chemical pesticides with sustainable disease management without pesticide residues in foodstuff. The bio priming of seeds with fungal antagonist T. viridae and T. harzianum and bacterial antagonist Pseudomonas fluorescens significantly improved the germination behaviour of tomato seeds as compared to untreated control. Highest mean germination (93.1 %) and seedling vigour (953.33) was recorded in Treatment 3 (FYM @ 200 q ha-1 + Azospirillum + PSB + Trichoderma herzianum (4 kg ha-1 each) and lowest in control (60.3 %) and (304.83), thus indicating a significant per cent increase in seedling emergence (54.4 %) and seedling vigour (95.23 %). A considerable reduction in disease incidence (pre and post) of damping off was observed in treatment T₃ and T₄ (VC @ 50 q /ha + Azospirillum + PSB + Trichoderma harzianum @ (4 kg ha-1) with 45.6 % and 35.4 % respectively). Treatment T₃ proved highest in terms of yield (665 kg ha-1), Hence these diseases can be managed by successful application of Biocontrol agents.
The present studies conducted during the years (2011-13) gives an overview of investigating the i... more The present studies conducted during the years (2011-13) gives an overview of investigating the impact of organic and inorganic agriculture systems on the soil health, productivity and food nutritional values. The organic treatments [T 1-T 6 (organic treatments)-T 7 (con-trol)] integrated the use of organic manures (FYM (200 q /ha) and VC (50 q /ha), biofertilisers (Azotobacter, Azospirillum and PSB 4 kg /ha each), Biocontrol agents (Trichoderma viridae (4 kg /ha), Trichoderma herzianum and Pseudomonas flourescens10 g /l water each), Barrier and cover crops, pheromone and yellow sticky traps, green manuring and crop rotation etc, whereas the conventional treatment(control) implemented the use of chemical fertili-sers (FYM 250 q /ha + chemical fertilisers (CAN 650 kg /ha, urea) 650 kg /ha + pesticides (40-50 no. of sprays). The results confirmed the presence of higher soil NPK status (413.1 kg /ha, 26.33 kg /ha and 285.4 kg /ha) and OC (0.99 %). The GCMS results showed lesser pesticide residues (8.3 %) in tomatoes produced under organic treatments as compared to conventional system (43.3 %). The study recorded higher TSS (5.37 Brix), fruit firmness (10.11psi) and pericarp thickness (3.29mm) with higher levels of Vit C (37.3mg/100g), phenolics (42.1 %) and antioxidant activity (12.6 %) as compared to control (conventional system). The ly-copene and beta-carotene extracted by SPE (Solid Phase Extraction) column and further purified by HPLC reported higher fractions in organically grown tomatoes (28.8 % lyco-pene and 13.41 % beta carotene respectively) than the conventional ones (14 % lycopene and 4.8 % beta carotene respectively). It was interesting to note that organically grown tomatoes have longer crop durations as compared to conventionally grown tomatoes. The overall productivity (665 kg /ha) was also recorded higher than the conventionally grown ones (649.5). It can be concluded from the present studies that by adopting appropriate organic production technologies productivity levels comparable to those under conventional practices can be achieved in tomato with better quality produce, improved soil health and nutrient status.
Editorial assistance: Raúl Fernández
