Tusneem Kausar | University of Sargodha (original) (raw)

Papers by Tusneem Kausar

Different dose levels of mango (Mangifera indica L.) and kinnow (Citrus reticulate L.) peel extra... more Different dose levels of mango (Mangifera indica L.) and kinnow (Citrus reticulate L.) peel extracts were administered to rats for 60 days and myocardial infarction was induced by administering doxorubicin (DOX) injection 2.5 mg/kg body weight (BW) intraperitoneal in six equal doses on alternate days from 50th to 60th day. Cardiac biomarkers lactate dehydrogenase (LDH), aspartate transaminase (AST), creatine kinase-MB fraction (CKMB), creatine phosphokinase (CPK), lipid profile (triglycerides, cholesterol, high density lipoprotein (HDL)) and low density lipoprotein (LDL), renal function activities (blood urea nitrogen, creatinine, uric acid) in serum and antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) in heart tissues were estimated. Histopathological studies were carried out for cardiac tissues of the studied rat groups. Mango and kinnow peel polyphenolic extracts at medium dose (i.e., 150 mg/kg BW) and high dose (i.e., 300 mg/kg BW) exh...

Food Science and Biotechnology, 2007

The research work was conducted to assess the hypocholesterolemic effect of persimmon peel powder... more The research work was conducted to assess the hypocholesterolemic effect of persimmon peel powder in hyperlipidemia induced rabbits. Rabbits were fed diets to raise cholesterol for 10 days. Then peel was dried in hot air oven and lyophilizer and was converted into powder. The diet of hyperlipidemic rabbits was supplemented with 0, 10 and 20% concentration of oven dried or lyophilized peel powder. After four weeks of this diet therapy, it was observed that the maximum reduction in blood cholesterol level, triglycerides and low density lipoproteins (LDL) was observed in the rabbits fed diets supplemented with 20% peel powder with a mean reduction from 93 mg/dl to 52.25 mg/dl. Whereas, there was an increment in levels of high density lipoproteins with mean increment from, 4.5 mg/dl to 31.375 mg/dl when feed was supplemented with 20% peel powder. It may be concluded that the persimmon peel powder is effective in lowering total blood cholesterol, triglycerides and LDL as a diet therapy e...

건고추의 방사선 조사 여부 판별법을 연구하고자 부위별(분말, 과피, 씨, 줄기) 전자스핀공명(ESR)을 분석한 결과, 조사시료에서는 비조사 시료에서 볼 수 없었던 cellul... more 건고추의 방사선 조사 여부 판별법을 연구하고자 부위별(분말, 과피, 씨, 줄기) 전자스핀공명(ESR)을 분석한 결과, 조사시료에서는 비조사 시료에서 볼 수 없었던 cellulose radical에 의해 생성되는 한 쌍의 peak가 6 mT의 간격을 두고 signal을 보여주었다(g=2.024, 2.006, 1.987). ESR signal은 조사 선량의 증가에 따라 크기가 비례적으로 증가하였다. ESR signal은 실온 저장 12주 후에도 측정이 가능하였다. GCMS에 의해 고춧가루 지방질로부터 hydrocarbon류를 검출한 결과, 조사 시료에서는 비조사 시료에서 검출되지 않은 1-tetradecene(14:1), 1,7,10-hexadecatriene(16:3), 1,7-hexadecadiene(16:2), 1-hexadecene(16:1), 6,9-heptadecadiene (17:2), 8-heptadecene(17:1) 등의 hydrocarbon류가 검출되었고 저장 8개월까지도 검출이 가능하여 방사선 조사 marker로써의 활용가능성을 확인하였다.

Food Science and Biotechnology, 2009

Three physical methods, photostimulated luminescence (PSL), thermoluminescence (TL), and electron... more Three physical methods, photostimulated luminescence (PSL), thermoluminescence (TL), and electron spin resonance (ESR), have been applied to detect the irradiation treatment for the non- and steamed sesame seed samples. PSL successfully screened the irradiated samples from the non-irradiated control by comparing their photon counts (PCs) with the lower (less than 700 count/60 sec) and upper threshold values (higher than 5,000 count/60 sec). TL signals were still detected in all irradiated samples even after steaming, which was reconfirmed with TL ratios [integrated area of TL₁ (the first glow)/TL₂ (the second glow)] through re-irradiation step. ESR spectrometry showed that radiation-induced cellulose radicals were detected in all the irradiated samples irrespective of steaming treatment. Identification of the irradiated sesame seeds was possible even after steaming by analyzing PSL, TL, and ESR.

Food Science and Biotechnology, 2004

Preventive Nutrition and Food Science, 2004

Hydrocarbons induced by gamma-irradiation of green, black, and oolong teas were analyzed to deter... more Hydrocarbons induced by gamma-irradiation of green, black, and oolong teas were analyzed to determine whether the hydrocarbons can be used as markers for detecting post-irradiation of these teas. The samples were irradiated at 0, 2.5, 5, 7.5, and 10 kGy. Detection was attempted by extracting fat from the teas, separation of hydrocarbons with florisil column chromatography, and identification of hydrocarbons by gas chromatography-mass spectroscopy (GC-MS). Concentration of hydrocarbons increased with the irradiation dose. The major hydrocarbons in irradiated green, black, and oolong teas were 1-tetradecence (14:1), pentadecane (15:0), 1,7-hexadecadiene (16:2), 1-hexadecene (16:1), 8-heptadecene (17:1), and heptadecane (17:0). Radiation-induced hydrocarbons in teas were 1,7- hexadecadiene and 8-heptadecene. These compounds were not detected in non-irradiated samples, so the hydrocarbons (16:2, 17:1) can be used as markers for detecting post-irradiation of the teas. Furthermore, detection of hydrocarbons after 12 months storage at room temperature remains a suitable method for identifying irradiated teas.

The bread loaves were prepared from wheat flour by adding different levels/types of gums i.e. gua... more The bread loaves were prepared from wheat flour by adding different levels/types of gums i.e. guar-gum, carboxymethylcellulose (CMC) and sodium (Na) alginate. The prepared breads were evaluated for sensory characteristics during storage for successive intervals of 0, 24, 48, 72 and 96 h. Wheat flour comprised of 12.01% moisture, 10.25% crude protein, 1.07% fat, 0.55% ash, 0.68% crude fibre and

... Wheat flour analysis showed that flour contained moisture 12.45%, total ash 0.52%, crude prot... more ... Wheat flour analysis showed that flour contained moisture 12.45%, total ash 0.52%, crude protein 10.06%, crude fat 0.99% and crude fiber 0.37%. All internal and external sensory characteristics of bread differed significantly with the exception of evenness of bake. ...

The effect of adding 10% fat substitute (10%F) or 2% plum extract (2%P) on the formation of hydro... more The effect of adding 10% fat substitute (10%F) or 2% plum extract (2%P) on the formation of hydrocarbons and 2-alkylcyclobutanones (2-ACBs) in freeze-dried beef patties, irradiated (IR) at 44 kGy, and freeze-dried irradiated cooked beef patties was investigated. Hydrocarbons, such as C16:3, C16:2, C17:2 and C17:1, were detected only in irradiated samples and their concentrations were high in the order of 2%P+IR, IR and 10%F+IR. Only irradiated beef samples produced 2-ACBs (2-DCB, 2-TCB, 2-TeCB), and their amounts were high in reverse order. The addition of fat substitute or plum extract did not help in reducing hydrocarbons and 2-ACBs in the freeze-dried irradiated cooked beef. However, the amounts of radiationinduced hydrocarbons and 2-ACBs in all irradiated beef patties even at 44 kGy were too small to be of concern for human consumption.

An investigation was carried out to extract the polyphenols from mango peels by ultrasound-assist... more An investigation was carried out to extract the polyphenols from mango peels by ultrasound-assisted extraction (UAE) and maceration techniques and to assess the antioxidant potential and quantification of phenolic compounds by high performance chromatography. Results showed that highest extraction yield obtained through solvent methanol at 80% concentration level while ultrasound-assisted extraction was more efficient technique and led to comparatively higher polyphenols content than maceration. Highest polyphenols were extracted with 80% ethanol (67.58 mg GAE/g of extract) by employing UAE whereas least polyphenols (18.66 mg GAE/g of extract) were obtained with 100% ethyl acetate through maceration technique. The high antioxidant activity of mango peel extracts was exhibited in three antioxidant assays with 80% ethanolic extracts had the highest antioxidant activity 31.51 + 0.79 mM/100 g for ferric reducing antioxidant power, highest scavenging activity 83.19 + 0.96% and 67.23 + 0....

Photostimulated luminescence (PSL), thermoluminescence (TL), electron spin resonance (ESR), and d... more Photostimulated luminescence (PSL), thermoluminescence (TL), electron spin resonance (ESR), and direct epiflourescent filter technique/aerobic plate count (DEFT/APC) were applied to detect dried green, black, and oolong teas irradiated between 0-10 kGy. Teas irradiated at 2.5 kGy and higher showed over 5000 photon counts/60 sec, while non-irradiated teas yielded 650-1000 photon counts/60 sec. TL glow curves for minerals separated from teas were detected at about with low intensity in non-irradiated samples, whereas around with high intensity in all irradiated samples. Ratio of based on re-irradiation step, showing lower than 0.1 and higher than 1.44 for non-irradiated and irradiated samples, respectively, enhanced reliability of TL results. ESR measurements for irradiated teas showed signals specific to irradiation. Log DEFT/APC ratio increased with irradiation dose; this result could be applied to identify irradiated tea samples.

Mortality of the stored-product insect Indian meal moth (Plodia interpunctella) was evaluated at ... more Mortality of the stored-product insect Indian meal moth (Plodia interpunctella) was evaluated at different growth stages by gamma irradiation. P. interpunctella reared on Korean ginseng (Panax ginseng) was exposed to 60 Co-gamma rays at low doses (0.05~0.5 kGy) as well as high doses (1 ~5 kGy) at ambient temperature and then subjected to the corresponding study during storage for 21 days to investigate the effect of irradiation on Indian meal moth disinfestation. Adult mortality rate was 74.44% just after irradiation at 0.05 kGy, which increased to 93.33% at 21-day of storage. Mortality of pupae was 78.89% after irradiation that reached 95.55% on 21 st day after storage irradiated at 0.05 kGy. Both adult and pupa achieved 100% mortality at 0.5 kGy irradiation dose but larvae were more resistant to the same irradiation level. However, no larvae survived at 1 kGy, 21days after treatment. So, Ginseng can be successfully, disinfested from Indian meal moth at an irradiation dose of just ...

UNLABELLED Raw and cooked beef and pork loins were irradiated at 0 or 5 kGy. The radiation-induce... more UNLABELLED Raw and cooked beef and pork loins were irradiated at 0 or 5 kGy. The radiation-induced marker compounds, such as hydrocarbons, 2-alkylcyclobutanones (2-ACBs), and sulfur volatiles, were determined after 0 and 6 mo of frozen storage. Two hydrocarbons (8-heptadecene [C(17:1)] and 6,9-heptadecadiene [C(17:2)]) and two 2-ACBs (2-dodecylcyclobutanone [2-DCB] and 2-tetradecylcyclobutanone [2-TCB]) were detected only in irradiated raw and cooked meats. Although precooked irradiated meats produced more hydrocarbons and 2-ACBs than the irradiated cooked ones, the amounts of individual hydrocarbons and 2-ACBs, such as 8-heptadecene, 6,9-heptadecadiene, 2-DCB, and 2-TCB, were sufficient enough to detect whether the meat was irradiated or not. Dimethyl disulfide and dimethyl trisulfide were also determined only in irradiated meats but dimethyl trisulfide disappeared after 6 mo of frozen storage under oxygen-permeable packaging conditions. The results indicated that 8-heptadecene, 6,...

Dried seasoned filefish (Thamnaconus modestus) was irradiated at 0–10 kGy and the identification ... more Dried seasoned filefish (Thamnaconus modestus) was irradiated at 0–10 kGy and the identification of irradiation treatment was investigated by analyzing the characteristics of thermoluminescence (TL), hydrocarbon (HC), and 2-alkylacyclobutanone (2-ACB). The TL (TL1), glow curve of the irradiated samples peaked at approximately 150 °C with high intensity, but that of the non-irradiated samples peaked at about 300 °C with little intensity, thus making it possible to discriminate between irradiated and non-irradiated samples. Moreover, TL ratio (TL1/TL2), through normalization steps, enhanced the reliability of the TL1 results. Six kinds of HCs and three kinds of 2-ACBs quantitatively determined for the samples linearly increased in proportion to irradiation doses. In particular, two HCs like 1-hexadecane and 1,7-hexadecadine, and three ACBs, such as 2-dodecylcyclobutanone, 2-(5′-tetradeceyl)cyclobutanone, and 2-tetradecylcyclobutanone, were identified only in the irradiated samples as ...

Food Science and Technology, 2021

Journal of Food Processing and Preservation

Pumpkin is an important vegetable, which has potential to be used as medicinal and functional foo... more Pumpkin is an important vegetable, which has potential to be used as medicinal and functional food Not only the pulp but also the peel and seeds of pumpkin are good sources of phytochemicals and minerals Pumpkin peel, flesh, and seeds were dried to obtain powders, and 80% of methanolic extracts were prepared for further analyses Among three fractions of pumpkin, higher content of total phenolics (224 61 ± 1 60‐mg GAE/100‐g powder) and total flavonoids (139 37 ± 1 07‐mg CE/100‐g powder) were recorded in pumpkin seeds as compared with peel and flesh, whereas higher carotenoids (35 2 ± 0 49 mg/100‐g powder) and β‐carotene (6 18 ± 0 04 mg/100‐g powder) were present in pumpkin flesh extract, when compared with peel and seeds Pumpkin flesh, as compared with peel and seeds, contained higher values of Na, K, and Fe (17 87 ± 0 22, 1592 ± 20 3, and 41 50 ± 0 45 mg/100‐g powder, respectively) Valuable amount of Zn (15 21 ± 0 07 mg/100‐g powder) was present in pumpkin seeds powder Pumpkin parts (peel, flesh, and seeds) own high nutritional significance due to the presence of total phenolics, flavonoids, total carotenoids, and appreciable amount of macroelements and microelements Organic waste generated as a result of pumpkin processing could effectively be utilized in different food products for the development of functional and medicinal foods Notably, pumpkin seeds are high in zinc content, and in this situation of COVID‐19 pandemic, scientific community is well aware of oxidation and mediating role of zinc for activation of enzymes in the body Phytochemicals present in pumpkin peel, flesh, and seeds can fight against antiaging and enhance immunity These low‐cost powders from pumpkin parts can be used as a potential source of functional foods and nutraceuticals in food and medicinal industries [ABSTRACT FROM AUTHOR] Copyright of Journal of Food Processing & Preservation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission However, users may print, download, or email articles for individual use This abstract may be abridged No warranty is given about the accuracy of the copy Users should refer to the original published version of the material for the full abstract (Copyright applies to all Abstracts )

Animals

The present study investigates the antidiabetic potential of polyphenol extracts purified from gu... more The present study investigates the antidiabetic potential of polyphenol extracts purified from guava pulp, seeds and leaves using an in vivo experiment on albino rats. The polyphenols from guava pulp, seeds and leaves were extracted using methanol solvent and the sonication method while being evaluated by total phenolic contents and radical scavenging activity assay. The proximate composition of powders revealed that ash, protein and total sugars were significantly (p < 0.05) higher in leaves and seeds, while vitamin C was highest in pulp. Total phenolic and antioxidant activities were highest in pulp followed by leaves and seeds. The findings of feed intake and body gain revealed that the supplementation of polyphenols, especially from pulp, significantly (p < 0.05) increased the feed intake, which resulted in increased body weight. Moreover, total cholesterol (TC) and low-density lipoprotein (LDL) levels were significantly (p < 0.05) decreased, while the level of high-den...

Different dose levels of mango (Mangifera indica L.) and kinnow (Citrus reticulate L.) peel extra... more Different dose levels of mango (Mangifera indica L.) and kinnow (Citrus reticulate L.) peel extracts were administered to rats for 60 days and myocardial infarction was induced by administering doxorubicin (DOX) injection 2.5 mg/kg body weight (BW) intraperitoneal in six equal doses on alternate days from 50th to 60th day. Cardiac biomarkers lactate dehydrogenase (LDH), aspartate transaminase (AST), creatine kinase-MB fraction (CKMB), creatine phosphokinase (CPK), lipid profile (triglycerides, cholesterol, high density lipoprotein (HDL)) and low density lipoprotein (LDL), renal function activities (blood urea nitrogen, creatinine, uric acid) in serum and antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) in heart tissues were estimated. Histopathological studies were carried out for cardiac tissues of the studied rat groups. Mango and kinnow peel polyphenolic extracts at medium dose (i.e., 150 mg/kg BW) and high dose (i.e., 300 mg/kg BW) exh...

Food Science and Biotechnology, 2007

The research work was conducted to assess the hypocholesterolemic effect of persimmon peel powder... more The research work was conducted to assess the hypocholesterolemic effect of persimmon peel powder in hyperlipidemia induced rabbits. Rabbits were fed diets to raise cholesterol for 10 days. Then peel was dried in hot air oven and lyophilizer and was converted into powder. The diet of hyperlipidemic rabbits was supplemented with 0, 10 and 20% concentration of oven dried or lyophilized peel powder. After four weeks of this diet therapy, it was observed that the maximum reduction in blood cholesterol level, triglycerides and low density lipoproteins (LDL) was observed in the rabbits fed diets supplemented with 20% peel powder with a mean reduction from 93 mg/dl to 52.25 mg/dl. Whereas, there was an increment in levels of high density lipoproteins with mean increment from, 4.5 mg/dl to 31.375 mg/dl when feed was supplemented with 20% peel powder. It may be concluded that the persimmon peel powder is effective in lowering total blood cholesterol, triglycerides and LDL as a diet therapy e...

건고추의 방사선 조사 여부 판별법을 연구하고자 부위별(분말, 과피, 씨, 줄기) 전자스핀공명(ESR)을 분석한 결과, 조사시료에서는 비조사 시료에서 볼 수 없었던 cellul... more 건고추의 방사선 조사 여부 판별법을 연구하고자 부위별(분말, 과피, 씨, 줄기) 전자스핀공명(ESR)을 분석한 결과, 조사시료에서는 비조사 시료에서 볼 수 없었던 cellulose radical에 의해 생성되는 한 쌍의 peak가 6 mT의 간격을 두고 signal을 보여주었다(g=2.024, 2.006, 1.987). ESR signal은 조사 선량의 증가에 따라 크기가 비례적으로 증가하였다. ESR signal은 실온 저장 12주 후에도 측정이 가능하였다. GCMS에 의해 고춧가루 지방질로부터 hydrocarbon류를 검출한 결과, 조사 시료에서는 비조사 시료에서 검출되지 않은 1-tetradecene(14:1), 1,7,10-hexadecatriene(16:3), 1,7-hexadecadiene(16:2), 1-hexadecene(16:1), 6,9-heptadecadiene (17:2), 8-heptadecene(17:1) 등의 hydrocarbon류가 검출되었고 저장 8개월까지도 검출이 가능하여 방사선 조사 marker로써의 활용가능성을 확인하였다.

Food Science and Biotechnology, 2009

Three physical methods, photostimulated luminescence (PSL), thermoluminescence (TL), and electron... more Three physical methods, photostimulated luminescence (PSL), thermoluminescence (TL), and electron spin resonance (ESR), have been applied to detect the irradiation treatment for the non- and steamed sesame seed samples. PSL successfully screened the irradiated samples from the non-irradiated control by comparing their photon counts (PCs) with the lower (less than 700 count/60 sec) and upper threshold values (higher than 5,000 count/60 sec). TL signals were still detected in all irradiated samples even after steaming, which was reconfirmed with TL ratios [integrated area of TL₁ (the first glow)/TL₂ (the second glow)] through re-irradiation step. ESR spectrometry showed that radiation-induced cellulose radicals were detected in all the irradiated samples irrespective of steaming treatment. Identification of the irradiated sesame seeds was possible even after steaming by analyzing PSL, TL, and ESR.

Food Science and Biotechnology, 2004

Preventive Nutrition and Food Science, 2004

Hydrocarbons induced by gamma-irradiation of green, black, and oolong teas were analyzed to deter... more Hydrocarbons induced by gamma-irradiation of green, black, and oolong teas were analyzed to determine whether the hydrocarbons can be used as markers for detecting post-irradiation of these teas. The samples were irradiated at 0, 2.5, 5, 7.5, and 10 kGy. Detection was attempted by extracting fat from the teas, separation of hydrocarbons with florisil column chromatography, and identification of hydrocarbons by gas chromatography-mass spectroscopy (GC-MS). Concentration of hydrocarbons increased with the irradiation dose. The major hydrocarbons in irradiated green, black, and oolong teas were 1-tetradecence (14:1), pentadecane (15:0), 1,7-hexadecadiene (16:2), 1-hexadecene (16:1), 8-heptadecene (17:1), and heptadecane (17:0). Radiation-induced hydrocarbons in teas were 1,7- hexadecadiene and 8-heptadecene. These compounds were not detected in non-irradiated samples, so the hydrocarbons (16:2, 17:1) can be used as markers for detecting post-irradiation of the teas. Furthermore, detection of hydrocarbons after 12 months storage at room temperature remains a suitable method for identifying irradiated teas.

The bread loaves were prepared from wheat flour by adding different levels/types of gums i.e. gua... more The bread loaves were prepared from wheat flour by adding different levels/types of gums i.e. guar-gum, carboxymethylcellulose (CMC) and sodium (Na) alginate. The prepared breads were evaluated for sensory characteristics during storage for successive intervals of 0, 24, 48, 72 and 96 h. Wheat flour comprised of 12.01% moisture, 10.25% crude protein, 1.07% fat, 0.55% ash, 0.68% crude fibre and

... Wheat flour analysis showed that flour contained moisture 12.45%, total ash 0.52%, crude prot... more ... Wheat flour analysis showed that flour contained moisture 12.45%, total ash 0.52%, crude protein 10.06%, crude fat 0.99% and crude fiber 0.37%. All internal and external sensory characteristics of bread differed significantly with the exception of evenness of bake. ...

The effect of adding 10% fat substitute (10%F) or 2% plum extract (2%P) on the formation of hydro... more The effect of adding 10% fat substitute (10%F) or 2% plum extract (2%P) on the formation of hydrocarbons and 2-alkylcyclobutanones (2-ACBs) in freeze-dried beef patties, irradiated (IR) at 44 kGy, and freeze-dried irradiated cooked beef patties was investigated. Hydrocarbons, such as C16:3, C16:2, C17:2 and C17:1, were detected only in irradiated samples and their concentrations were high in the order of 2%P+IR, IR and 10%F+IR. Only irradiated beef samples produced 2-ACBs (2-DCB, 2-TCB, 2-TeCB), and their amounts were high in reverse order. The addition of fat substitute or plum extract did not help in reducing hydrocarbons and 2-ACBs in the freeze-dried irradiated cooked beef. However, the amounts of radiationinduced hydrocarbons and 2-ACBs in all irradiated beef patties even at 44 kGy were too small to be of concern for human consumption.

An investigation was carried out to extract the polyphenols from mango peels by ultrasound-assist... more An investigation was carried out to extract the polyphenols from mango peels by ultrasound-assisted extraction (UAE) and maceration techniques and to assess the antioxidant potential and quantification of phenolic compounds by high performance chromatography. Results showed that highest extraction yield obtained through solvent methanol at 80% concentration level while ultrasound-assisted extraction was more efficient technique and led to comparatively higher polyphenols content than maceration. Highest polyphenols were extracted with 80% ethanol (67.58 mg GAE/g of extract) by employing UAE whereas least polyphenols (18.66 mg GAE/g of extract) were obtained with 100% ethyl acetate through maceration technique. The high antioxidant activity of mango peel extracts was exhibited in three antioxidant assays with 80% ethanolic extracts had the highest antioxidant activity 31.51 + 0.79 mM/100 g for ferric reducing antioxidant power, highest scavenging activity 83.19 + 0.96% and 67.23 + 0....

Photostimulated luminescence (PSL), thermoluminescence (TL), electron spin resonance (ESR), and d... more Photostimulated luminescence (PSL), thermoluminescence (TL), electron spin resonance (ESR), and direct epiflourescent filter technique/aerobic plate count (DEFT/APC) were applied to detect dried green, black, and oolong teas irradiated between 0-10 kGy. Teas irradiated at 2.5 kGy and higher showed over 5000 photon counts/60 sec, while non-irradiated teas yielded 650-1000 photon counts/60 sec. TL glow curves for minerals separated from teas were detected at about with low intensity in non-irradiated samples, whereas around with high intensity in all irradiated samples. Ratio of based on re-irradiation step, showing lower than 0.1 and higher than 1.44 for non-irradiated and irradiated samples, respectively, enhanced reliability of TL results. ESR measurements for irradiated teas showed signals specific to irradiation. Log DEFT/APC ratio increased with irradiation dose; this result could be applied to identify irradiated tea samples.

Mortality of the stored-product insect Indian meal moth (Plodia interpunctella) was evaluated at ... more Mortality of the stored-product insect Indian meal moth (Plodia interpunctella) was evaluated at different growth stages by gamma irradiation. P. interpunctella reared on Korean ginseng (Panax ginseng) was exposed to 60 Co-gamma rays at low doses (0.05~0.5 kGy) as well as high doses (1 ~5 kGy) at ambient temperature and then subjected to the corresponding study during storage for 21 days to investigate the effect of irradiation on Indian meal moth disinfestation. Adult mortality rate was 74.44% just after irradiation at 0.05 kGy, which increased to 93.33% at 21-day of storage. Mortality of pupae was 78.89% after irradiation that reached 95.55% on 21 st day after storage irradiated at 0.05 kGy. Both adult and pupa achieved 100% mortality at 0.5 kGy irradiation dose but larvae were more resistant to the same irradiation level. However, no larvae survived at 1 kGy, 21days after treatment. So, Ginseng can be successfully, disinfested from Indian meal moth at an irradiation dose of just ...

UNLABELLED Raw and cooked beef and pork loins were irradiated at 0 or 5 kGy. The radiation-induce... more UNLABELLED Raw and cooked beef and pork loins were irradiated at 0 or 5 kGy. The radiation-induced marker compounds, such as hydrocarbons, 2-alkylcyclobutanones (2-ACBs), and sulfur volatiles, were determined after 0 and 6 mo of frozen storage. Two hydrocarbons (8-heptadecene [C(17:1)] and 6,9-heptadecadiene [C(17:2)]) and two 2-ACBs (2-dodecylcyclobutanone [2-DCB] and 2-tetradecylcyclobutanone [2-TCB]) were detected only in irradiated raw and cooked meats. Although precooked irradiated meats produced more hydrocarbons and 2-ACBs than the irradiated cooked ones, the amounts of individual hydrocarbons and 2-ACBs, such as 8-heptadecene, 6,9-heptadecadiene, 2-DCB, and 2-TCB, were sufficient enough to detect whether the meat was irradiated or not. Dimethyl disulfide and dimethyl trisulfide were also determined only in irradiated meats but dimethyl trisulfide disappeared after 6 mo of frozen storage under oxygen-permeable packaging conditions. The results indicated that 8-heptadecene, 6,...

Dried seasoned filefish (Thamnaconus modestus) was irradiated at 0–10 kGy and the identification ... more Dried seasoned filefish (Thamnaconus modestus) was irradiated at 0–10 kGy and the identification of irradiation treatment was investigated by analyzing the characteristics of thermoluminescence (TL), hydrocarbon (HC), and 2-alkylacyclobutanone (2-ACB). The TL (TL1), glow curve of the irradiated samples peaked at approximately 150 °C with high intensity, but that of the non-irradiated samples peaked at about 300 °C with little intensity, thus making it possible to discriminate between irradiated and non-irradiated samples. Moreover, TL ratio (TL1/TL2), through normalization steps, enhanced the reliability of the TL1 results. Six kinds of HCs and three kinds of 2-ACBs quantitatively determined for the samples linearly increased in proportion to irradiation doses. In particular, two HCs like 1-hexadecane and 1,7-hexadecadine, and three ACBs, such as 2-dodecylcyclobutanone, 2-(5′-tetradeceyl)cyclobutanone, and 2-tetradecylcyclobutanone, were identified only in the irradiated samples as ...

Food Science and Technology, 2021

Journal of Food Processing and Preservation

Pumpkin is an important vegetable, which has potential to be used as medicinal and functional foo... more Pumpkin is an important vegetable, which has potential to be used as medicinal and functional food Not only the pulp but also the peel and seeds of pumpkin are good sources of phytochemicals and minerals Pumpkin peel, flesh, and seeds were dried to obtain powders, and 80% of methanolic extracts were prepared for further analyses Among three fractions of pumpkin, higher content of total phenolics (224 61 ± 1 60‐mg GAE/100‐g powder) and total flavonoids (139 37 ± 1 07‐mg CE/100‐g powder) were recorded in pumpkin seeds as compared with peel and flesh, whereas higher carotenoids (35 2 ± 0 49 mg/100‐g powder) and β‐carotene (6 18 ± 0 04 mg/100‐g powder) were present in pumpkin flesh extract, when compared with peel and seeds Pumpkin flesh, as compared with peel and seeds, contained higher values of Na, K, and Fe (17 87 ± 0 22, 1592 ± 20 3, and 41 50 ± 0 45 mg/100‐g powder, respectively) Valuable amount of Zn (15 21 ± 0 07 mg/100‐g powder) was present in pumpkin seeds powder Pumpkin parts (peel, flesh, and seeds) own high nutritional significance due to the presence of total phenolics, flavonoids, total carotenoids, and appreciable amount of macroelements and microelements Organic waste generated as a result of pumpkin processing could effectively be utilized in different food products for the development of functional and medicinal foods Notably, pumpkin seeds are high in zinc content, and in this situation of COVID‐19 pandemic, scientific community is well aware of oxidation and mediating role of zinc for activation of enzymes in the body Phytochemicals present in pumpkin peel, flesh, and seeds can fight against antiaging and enhance immunity These low‐cost powders from pumpkin parts can be used as a potential source of functional foods and nutraceuticals in food and medicinal industries [ABSTRACT FROM AUTHOR] Copyright of Journal of Food Processing & Preservation is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission However, users may print, download, or email articles for individual use This abstract may be abridged No warranty is given about the accuracy of the copy Users should refer to the original published version of the material for the full abstract (Copyright applies to all Abstracts )

Animals

The present study investigates the antidiabetic potential of polyphenol extracts purified from gu... more The present study investigates the antidiabetic potential of polyphenol extracts purified from guava pulp, seeds and leaves using an in vivo experiment on albino rats. The polyphenols from guava pulp, seeds and leaves were extracted using methanol solvent and the sonication method while being evaluated by total phenolic contents and radical scavenging activity assay. The proximate composition of powders revealed that ash, protein and total sugars were significantly (p < 0.05) higher in leaves and seeds, while vitamin C was highest in pulp. Total phenolic and antioxidant activities were highest in pulp followed by leaves and seeds. The findings of feed intake and body gain revealed that the supplementation of polyphenols, especially from pulp, significantly (p < 0.05) increased the feed intake, which resulted in increased body weight. Moreover, total cholesterol (TC) and low-density lipoprotein (LDL) levels were significantly (p < 0.05) decreased, while the level of high-den...