Open AccessIn Vitro Inhibitory Effects of Organic Acids Identified in Commercial Vinegars on α-Amylase and α-Glucosidase
Author(s) -
Younghee Noh,
Da-Bin Lee,
Ye-Won Lee,
Young-Hee Pyo
Publication year - 2020
Publication title -
preventive nutrition and food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.498
H-Index - 24
eISSN - 2287-8602
pISSN - 2287-1098
DOI - 10.3746/pnf.2020.25.3.319
Subject(s) - organic acid , tartaric acid , citric acid , food science , chemistry , amylase , malic acid , acetic acid , succinic acid , lactic acid , enzyme , biochemistry , biology , bacteria , genetics
The aim of this work was to evaluate the inhibitory activities of organic acids identified from commercial vinegars on α-amylase and α-glucosidase. Six organic acids (acetic, citric, lactic, malic, succinic, and tartaric) were identified in nine commercial vinegars, whose contents varied considerably depending on the raw materials. Most of the fruit vinegars, comprised of various organic acids, were found to be more effective inhibitors against digestive enzymes than grain vinegars containing mainly acetic acid. Citric acid had the lowest IC 50 values for α-amylase and α-glucosidase activities 0.64±0.04 μM/mL and 8.95±0.05 μM/mL, respectively, and thus exhibited the strongest antidiabetic effect. Mulberry fruit vinegar containing the highest content of total organic acid (111.02±1.50 mg/mL) showed the strongest digestive enzyme inhibitory impact. The results indicate that vinegars with higher contents of various organic acids hold strong potential against digestive enzymes.