KIRAN KC | University of Agricultural Sciences,GKVK,Bangalore (original) (raw)

Papers by KIRAN KC

The Pharma Innovation Journal, 2023

The current energy landscape, the rising demand for sustainable alternatives has intensified the ... more The current energy landscape, the rising demand for sustainable alternatives has intensified the focus on bioethanol. This study investigates the composition and pretreatment effects on foxtail millet husk (FH) as a potential bioethanol feedstock. FH with 38.44% cellulose and 33.71% hemicellulose, demonstrates promise for bioethanol production. Various pretreatments are evaluated, with the pretreatment N2P2 yielding the highest cellulose content (64.29%). Subsequent simultaneous saccharification and fermentation (SSF) with Saccharomyces cerevisiae resulted in highest ethanol yields of 13.77% (N2P1) and 12.80% (N2P2). Additionally, the combination of (N1P2) with SSF using Zymomonas mobilis exhibited the highest ethanol yield (9.42%), albeit slightly lower than the yields obtained with Saccharomyces cerevisiae. These findings highlight the efficacy of different pretreatment strategies, particularly the N2P2 combination, in enhancing cellulose content and subsequently maximizing ethanol production.

Mysore Journal of Agricultural Sciences, 2022

Biofuel is a good substitute for fossil fuel as it is economical, renewable and environment frien... more Biofuel is a good substitute for fossil fuel as it is economical, renewable and environment friendly emitting about 90 per cent fewer greenhouse gases (GHGs) than gasoline. The long-term viability of bioethanol produced from first-generation feedstock is in question because it will ultimately lead to food insecurity. Therefore, to produce bioethanol, second-generation processes that include lignocellulosic materials are gaining importance. The current study aimed to produce the ethanol from lignocellulosic biomass such as Foxtail straw. The Foxtail straw was pretreated with different combination of acid and alkali to breakdown the cell wall composition of the straw. Then the pretreated samples were subjected to hydrolysis method such as, Simultaneous Saccharification and fermentation (SSF) and Separate hydrolysis and fermentation (SHF) using the fungi Saccharomyces cerevisiae with commercial enzyme. With different combination of acid and alkali, the combination of NaOH and H 2 O 2 pretreatment was considered as the most suitable pretreatment because highest delignification (39%) was observed. NaOH alone and combination of NaOH and H 2 O 2 with Simultaneous Saccharification and fermentation (SSF) method of hydrolysis and fermentation of Foxtail straw yields high ethanol of 11.31 g/L and 11.00 g/L, respectively, which is four times higher than the control. Significant structure and chemical bond changes in the feedstock after pretreatment were found.

International Journal of Current Microbiology and Applied Sciences, 2019

Wild edible plants (WEPs) are the species that are neither cultivated nor domesticated, but avail... more Wild edible plants (WEPs) are the species that are neither cultivated nor domesticated, but available from their natural habitat and used as a
source of food. Use of wild edibles is diminishing at fast pace but it is clear that in many parts of the world the use of wild edibles is still prevalent. Consumption of wild edibles is a major source of vitamins and micronutrients for people using only vegetarian diets rich in carbohydrates. The present study deals with the study of diversity and seasonal availability of WEPs and documented 147 species of wild edible plants belonging to 66 families and it reveals information about
various edible parts of different species which includes corms, tubers, leaves, flowers, fruits and seeds, which are consumed by tribes and local people. All these plants are common in rural and forest area of Vidarbha region of Maharashtra. Majority of the species belongs to the families are Caesalpiniaceae, Fabaceae, Amaranthaceae, Araceae, Rubiaceae, Convolvulaceae, Cucurbitaceae, Dioscoreaceae, Tiliaceae, Anacardiaceae, Bignoniaceae, Combertaceae, Euphorbiaceae, Malvaceae, Moraceae. Collection and utilization of wild edible plants provide seasonal food security and become source of income to the tribes and local people.

International Journal of Forest Usufructs Management, 2018

In view of increasing threat by climate change, extreme weather conditions and recent financial c... more In view of increasing threat by climate change, extreme weather conditions and recent financial crisis there has been a concern for expanding agriculture and food supply for the growing population, particularly in the rural areas. Fortunately, the communities living in rural areas depend on wide variety of plant resources for survival in various forms as medicinal plants, Wild Edibles Plants (WEPs), fodder, fuel etc. Among these, WEPs became an important source of supplementary food in times of scarcity for rural communities. Hence the present study describes the diversity of wild edible plant resources of Tehri Garhwal. A total of 69 WEPs belonging to 55 genera and 42 families were recorded from study area. Out of 69 species recorded, 23 trees 22 shrubs, 17 herbs, 4 climbers, 2 fungi and 1 fern found in study area. Of the total WEPs, fruit yielding WEPs (42%) forms major proportion fallowed by leaves (20%), shoots (7%), flowers(6%), seeds (6%) , flower buds(4%), tubers(4%), nuts (3%) and others (bark, fungi, whole plant, root, and frond)(8%). The study will be helpful in developing a comprehensive data base on WEPs, strengthening the food security and conserving the traditional knowledge for the prosperity of the changing climate and modern agriculture.

The Pharma Innovation Journal, 2023

The current energy landscape, the rising demand for sustainable alternatives has intensified the ... more The current energy landscape, the rising demand for sustainable alternatives has intensified the focus on bioethanol. This study investigates the composition and pretreatment effects on foxtail millet husk (FH) as a potential bioethanol feedstock. FH with 38.44% cellulose and 33.71% hemicellulose, demonstrates promise for bioethanol production. Various pretreatments are evaluated, with the pretreatment N2P2 yielding the highest cellulose content (64.29%). Subsequent simultaneous saccharification and fermentation (SSF) with Saccharomyces cerevisiae resulted in highest ethanol yields of 13.77% (N2P1) and 12.80% (N2P2). Additionally, the combination of (N1P2) with SSF using Zymomonas mobilis exhibited the highest ethanol yield (9.42%), albeit slightly lower than the yields obtained with Saccharomyces cerevisiae. These findings highlight the efficacy of different pretreatment strategies, particularly the N2P2 combination, in enhancing cellulose content and subsequently maximizing ethanol production.

Mysore Journal of Agricultural Sciences, 2022

Biofuel is a good substitute for fossil fuel as it is economical, renewable and environment frien... more Biofuel is a good substitute for fossil fuel as it is economical, renewable and environment friendly emitting about 90 per cent fewer greenhouse gases (GHGs) than gasoline. The long-term viability of bioethanol produced from first-generation feedstock is in question because it will ultimately lead to food insecurity. Therefore, to produce bioethanol, second-generation processes that include lignocellulosic materials are gaining importance. The current study aimed to produce the ethanol from lignocellulosic biomass such as Foxtail straw. The Foxtail straw was pretreated with different combination of acid and alkali to breakdown the cell wall composition of the straw. Then the pretreated samples were subjected to hydrolysis method such as, Simultaneous Saccharification and fermentation (SSF) and Separate hydrolysis and fermentation (SHF) using the fungi Saccharomyces cerevisiae with commercial enzyme. With different combination of acid and alkali, the combination of NaOH and H 2 O 2 pretreatment was considered as the most suitable pretreatment because highest delignification (39%) was observed. NaOH alone and combination of NaOH and H 2 O 2 with Simultaneous Saccharification and fermentation (SSF) method of hydrolysis and fermentation of Foxtail straw yields high ethanol of 11.31 g/L and 11.00 g/L, respectively, which is four times higher than the control. Significant structure and chemical bond changes in the feedstock after pretreatment were found.

International Journal of Current Microbiology and Applied Sciences, 2019

Wild edible plants (WEPs) are the species that are neither cultivated nor domesticated, but avail... more Wild edible plants (WEPs) are the species that are neither cultivated nor domesticated, but available from their natural habitat and used as a
source of food. Use of wild edibles is diminishing at fast pace but it is clear that in many parts of the world the use of wild edibles is still prevalent. Consumption of wild edibles is a major source of vitamins and micronutrients for people using only vegetarian diets rich in carbohydrates. The present study deals with the study of diversity and seasonal availability of WEPs and documented 147 species of wild edible plants belonging to 66 families and it reveals information about
various edible parts of different species which includes corms, tubers, leaves, flowers, fruits and seeds, which are consumed by tribes and local people. All these plants are common in rural and forest area of Vidarbha region of Maharashtra. Majority of the species belongs to the families are Caesalpiniaceae, Fabaceae, Amaranthaceae, Araceae, Rubiaceae, Convolvulaceae, Cucurbitaceae, Dioscoreaceae, Tiliaceae, Anacardiaceae, Bignoniaceae, Combertaceae, Euphorbiaceae, Malvaceae, Moraceae. Collection and utilization of wild edible plants provide seasonal food security and become source of income to the tribes and local people.

International Journal of Forest Usufructs Management, 2018

In view of increasing threat by climate change, extreme weather conditions and recent financial c... more In view of increasing threat by climate change, extreme weather conditions and recent financial crisis there has been a concern for expanding agriculture and food supply for the growing population, particularly in the rural areas. Fortunately, the communities living in rural areas depend on wide variety of plant resources for survival in various forms as medicinal plants, Wild Edibles Plants (WEPs), fodder, fuel etc. Among these, WEPs became an important source of supplementary food in times of scarcity for rural communities. Hence the present study describes the diversity of wild edible plant resources of Tehri Garhwal. A total of 69 WEPs belonging to 55 genera and 42 families were recorded from study area. Out of 69 species recorded, 23 trees 22 shrubs, 17 herbs, 4 climbers, 2 fungi and 1 fern found in study area. Of the total WEPs, fruit yielding WEPs (42%) forms major proportion fallowed by leaves (20%), shoots (7%), flowers(6%), seeds (6%) , flower buds(4%), tubers(4%), nuts (3%) and others (bark, fungi, whole plant, root, and frond)(8%). The study will be helpful in developing a comprehensive data base on WEPs, strengthening the food security and conserving the traditional knowledge for the prosperity of the changing climate and modern agriculture.