Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal

This study was carried out to evaluate some legume seeds growing in Nepal for their proximate composition, quantification of total phenolic (TPC) and flavonoid (TFC) contents, and in vitro, antioxidant and antidiabetic activities. These included legume grains such as chickpeas (Cicer arietinum), pea...

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Main Authors: Khaga Raj Sharma, Govinda Giri
Format: Article
Language:English
Published: Hindawi Limited 2022-01-01
Series:International Journal of Food Science
Online Access:http://dx.doi.org/10.1155/2022/4629290
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author Khaga Raj Sharma
Govinda Giri
author_facet Khaga Raj Sharma
Govinda Giri
author_sort Khaga Raj Sharma
collection DOAJ
description This study was carried out to evaluate some legume seeds growing in Nepal for their proximate composition, quantification of total phenolic (TPC) and flavonoid (TFC) contents, and in vitro, antioxidant and antidiabetic activities. These included legume grains such as chickpeas (Cicer arietinum), pea (Pisum sativum), mung bean (Vigna mungo), lima bean (Phaseolus lunatus), broad bean (Vicia faba), lentil (Lens culinaris), soybean (Glycine max), and common bean (Phaseolus vulgaris). The legume seeds were ground to make the flour which was extracted with methanol. The phenolic and flavonoid content was estimated by Folin-Ciocalteu’s phenol and aluminum chloride colorimetric methods. The in vitro antioxidant and antidiabetic activity was evaluated by using DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging and α-amylase enzyme inhibition assay. The different legumes showed considerable variations in their phenolic contents (30.64±1.50 mg·GAE/g to 46.65±1.25 mg·GAE/g legume seeds). Similarly, the total flavonoid contents showed 135.5±10.88 mg·QE/g to 191.7±8.73 mg·QE/g legume seeds. The in vitro antioxidant activity was evaluated in IC50 which ranged from 31.60±0.06 μg/mL to 69.74±0.89 μg/mL. The α-amylase inhibition was evaluated in IC50 which ranged from 217.38 μg/mL to 425.75 μg/mL as compared to the standard acarbose of 52.76 μg/mL. This study suggested that legumes are good sources of proteins, carbohydrates, and fats mainly for vegetarian people. The selection of the right legume species could be a good source of natural antioxidants and antidiabetics for nutraceutical uses and the beneficial effects of legumes from human health perspectives. Legume seeds growing in Nepal could be used as a sustainable and cheap meat alternative and are considered the most important food source.
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spelling doaj.art-789c80e5b310419faadc04f65daf94992024-11-02T04:15:39ZengHindawi LimitedInternational Journal of Food Science2314-57652022-01-01202210.1155/2022/4629290Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in NepalKhaga Raj Sharma0Govinda Giri1Central Department of ChemistryCentral Department of ChemistryThis study was carried out to evaluate some legume seeds growing in Nepal for their proximate composition, quantification of total phenolic (TPC) and flavonoid (TFC) contents, and in vitro, antioxidant and antidiabetic activities. These included legume grains such as chickpeas (Cicer arietinum), pea (Pisum sativum), mung bean (Vigna mungo), lima bean (Phaseolus lunatus), broad bean (Vicia faba), lentil (Lens culinaris), soybean (Glycine max), and common bean (Phaseolus vulgaris). The legume seeds were ground to make the flour which was extracted with methanol. The phenolic and flavonoid content was estimated by Folin-Ciocalteu’s phenol and aluminum chloride colorimetric methods. The in vitro antioxidant and antidiabetic activity was evaluated by using DPPH (1,1-diphenyl-2-picrylhydrazyl) free radical scavenging and α-amylase enzyme inhibition assay. The different legumes showed considerable variations in their phenolic contents (30.64±1.50 mg·GAE/g to 46.65±1.25 mg·GAE/g legume seeds). Similarly, the total flavonoid contents showed 135.5±10.88 mg·QE/g to 191.7±8.73 mg·QE/g legume seeds. The in vitro antioxidant activity was evaluated in IC50 which ranged from 31.60±0.06 μg/mL to 69.74±0.89 μg/mL. The α-amylase inhibition was evaluated in IC50 which ranged from 217.38 μg/mL to 425.75 μg/mL as compared to the standard acarbose of 52.76 μg/mL. This study suggested that legumes are good sources of proteins, carbohydrates, and fats mainly for vegetarian people. The selection of the right legume species could be a good source of natural antioxidants and antidiabetics for nutraceutical uses and the beneficial effects of legumes from human health perspectives. Legume seeds growing in Nepal could be used as a sustainable and cheap meat alternative and are considered the most important food source.http://dx.doi.org/10.1155/2022/4629290
spellingShingle Khaga Raj Sharma
Govinda Giri
Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
International Journal of Food Science
title Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
title_full Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
title_fullStr Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
title_full_unstemmed Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
title_short Quantification of Phenolic and Flavonoid Content, Antioxidant Activity, and Proximate Composition of Some Legume Seeds Grown in Nepal
title_sort quantification of phenolic and flavonoid content antioxidant activity and proximate composition of some legume seeds grown in nepal
url http://dx.doi.org/10.1155/2022/4629290
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