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KMID : 0665420210360060649
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Korean Journal of Food Culture
2021 Volume.36 No. 6 p.649 ~ p.660
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Antioxidant, Anti-inflammatory, Anti-obesity and Estrogen-like Activities of Soybean Pod Extracts
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Jung Eun-Suk
Kim Haeng-Ran
Hwang Yu-Jin
Jang Kyeong-A
Seo Mi-Kyung
Chu Han-Na
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Abstract
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In this study, soybean pods of 45 soybean landraces (or varieties) were classified as yellow (19 samples), black (23samples), or black in green (3 samples) based on soybean seed coat color. Total polyphenol and flavonoid contents weremeasured, and antioxidant, anti-inflammatory, anti-obesity, and estrogen-like activities were assessed. Total polyphenol andflavonoid content ranges were 24.13-108.03 mg GAE/g and 3.31-72.02 mg CE/g, respectively, and were highest in theblack group followed by the yellow group and were least in the black in green group, while ABTS and DPPH activitiesfollowed the order black in green > black > yellow. Estrogen-like and estrogen receptor-α activity ranges were 29.06-35.58pg/mL and 7.05-10.13 pg/mL and were followed the order yellow > black > black in green and black in green > yellow >black, respectively. Nitric oxide (NO) inhibitory and UCP-1 activities followed the same order as estrogen receptor-αactivities. Our findings suggest that soybean pods are excellent sources of antioxidants and high-quality functional materials.
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KEYWORD
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Functional components, physiological activity, soybean pods, estrogen-like activity, antioxidant activity
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