Journal
ULTRASONICS SONOCHEMISTRY
Volume 94, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.ultsonch.2023.106311
Keywords
Mung bean; Germination; Ultrasound; ?-Aminobutyric acid; Polyphenols; Antioxidant capacity
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Mung bean seeds were treated with ultrasound and GABA to enhance the polyphenol content and antioxidant activity of mung bean sprouts. Metabolomics analysis identified 55 polyphenolic compounds and revealed 10 metabolic pathways involved in polyphenol biosynthesis. Sprouted mung bean powder released polyphenols during digestion and exhibited antioxidant activity.
Mung bean seeds were treated by a combination of ultrasound and gamma-aminobutyric acid (GABA). Effect of these treatments on the free polyphenols content, antioxidant activity, and digestibility of mung bean sprouts was evaluated. Additionally, phenolic compounds were analyzed and identified using a metabolomics approach. The combined ultrasound and GABA treatments significantly enhanced the free polyphenols and flavonoids content (P < 0.05) of mung bean sprouts depending on sprouting duration. Besides, a positive correlation (P < 0.05) was found between the polyphenols content and in vitro antioxidant activity of mung bean sprouts. Moreover, a total number of 608 metabolites were detected, and 55 polyphenol compounds were identified, including flavonoids, isoflavones, phenols, and coumarins. Also, the KEGG metabolic pathway analysis revealed 10 metabolic path-ways of phenols, including flavonoid, isoflavone, and phenylpropanoid biosynthesis. Powder of 48 h sprouted mung bean released polyphenols during simulated gastric digestion and possessed antioxidant activity.
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