Journal
JOURNAL OF FUNCTIONAL FOODS
Volume 104, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jff.2023.105513
Keywords
Chilean traditional food; Andean beans; & alpha;-glucosidase inhibitors; Phenolics; Saponins; Antioxidants
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This study aimed to analyze the chemical composition, antioxidant capacity, and enzyme inhibition effect of secondary metabolites-enriched extracts (SMEE) of thirteen Chilean bean landraces before and after boiling. HPLC-DAD-MS/MS was used to determine the SMEE composition, and various compounds including procyanidins, flavonoids, phenylpropanoids, and saponins were identified. Cooking decreased the total phenolics and saponins content, but certain individual compounds like ferulic acid and soyasaponins Ba and Bb increased. Total phenolics showed a significant correlation with antioxidant activity, and some saponins exhibited a correlation with α-glucosidase inhibition. The findings suggest that bean components may have local activity in the intestine, preventing oxidation of other nutrients and modulating gastrointestinal enzymes.
Beans (Phaseolus vulgaris L.) are a traditional food in Chile. This work aimed to determine the chemical composition, antioxidant capacity, and enzyme inhibition effect of secondary metabolites-enriched extracts (SMEE) of thirteen Chilean bean landraces before and after boiling. The SMEE composition was assessed by HPLC-DAD-MS/MS, and the main compounds were quantified. Forty-three constituents were identified, including procyanidins, flavonoids, phenylpropanoids, and saponins. The chemical profiles, antioxidant and enzyme inhibition towards a-glucosidase allowed the differentiation of the samples into whole beans with lower and high phenolic and saponin contents. Cooking decreases the total phenolics and saponins content but some individual compounds such as ferulic acid and soyasaponins Ba and Bb increases. A significant correlation was found between total phenolics and antioxidant activity. A correlation was observed between some saponins and a-glucosidase inhibition. The bean components might exert a local activity on the intestine preventing oxidation of other nutrients and modulating gastrointestinal enzymes.
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