Antioxidant and α-amylase inhibitory activities and starch hydrolysis kinetics of kidney bean by simulating digestion in vitro

Autor: SHI Juan, BAO Hong-hui, ZHANG Pei, ZHANG Ti-pei, ZHOU Rui
Jazyk: English<br />Chinese
Rok vydání: 2022
Předmět:
Zdroj: Shipin yu jixie, Vol 38, Iss 11, Pp 20-26 (2022)
Druh dokumentu: article
ISSN: 1003-5788
DOI: 10.13652/j.spjx.1003.5788.2022.80129
Popis: Objective: To evaluate the physiological effects of whole kidney been food and develop functional resources of different color kidney beans. Methods: The contents of total polyphenols, flavonoids and acid polysaccharides, and antioxidant and α-amylase inhibitory activities of digestive solution and starch hydrolysis kinetics and glucose diffusion properties of three kidney bean were investigated through in vitro simulated gastrointestinal digestion. Results: The contents of total polyphenols, flavonoids and acid polysaccharides, and antioxidant and α-amylase inhibitory activities were black kidney bean>red kidney bean>white kidney bean (P<0.05). The kinetic rate of first order reaction of starch hydrolysis, rapidly digestible starch contents and glucose diffusion rate were black kidney bean<red kidney bean<white kidney bean (P<0.05). Additionally, the contents of bioactive components of kidney bean digestive juices were positively correlated with the antioxidant activities, but negatively correlated with the rates of glucose diffusion (P<0.05). Conclusion: The digestive juices of kidney bean were rich in phenolic compounds and exhibited excellent antioxidant activity and certain α-amylase inhibitory ability.
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