Publication: Effect of Germination and Illumination on Melatonin and Its Metabolites, Phenolic Content, and Antioxidant Activity in Mung Bean Sprouts
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
22237747
Rights Holder(s)
Scopus
Bibliographic Citation
Journal of Health Science and Medical Research. Vol 40, No.6 (2022), p.647-656
Suggested Citation
Siriparu P., Panyatip P., Pota T., Ratha J., Yongram C., Srisongkram T., Sungthong B., Puthongking P. Effect of Germination and Illumination on Melatonin and Its Metabolites, Phenolic Content, and Antioxidant Activity in Mung Bean Sprouts. Journal of Health Science and Medical Research. Vol 40, No.6 (2022), p.647-656. doi:10.3390/plants11212990 Retrieved from: https://hdl.handle.net/20.500.14740/9181
Abstract
Mung bean (Vigna radiata L.) sprouts are increasingly consumed and have become part of a healthy diet. The sprouts are composed of proteins, carbohydrates, and biochemical compounds. During germination, the phytochemical compounds are significantly elevated, especially under stress conditions such as salinity, drought, extreme temperature, and illumination. The present study examined the effects of light and germination time on the bioactive compounds in mung bean sprout extracts. Mung bean seeds were sprouted under different light exposure conditions, and the phytochemical composition and antioxidant activity of sprout extracts were determined compared to seeds. The results show that tryptophan sharply decreased during germination. On the contrary, melatonin, polyphenols, and total phenolic content (TPC) were elevated with increased germination time, correlated with increased antioxidant activity. Sprouts germinated in the dark presented higher levels of melatonin and TPC compared with those germinated under 12 h light exposure (3.6- and 1.5-fold, respectively). In conclusion, germination can enhance valuable phytochemicals and antioxidant activity of mung bean sprouts. Mung bean sprouts may be a good alternative functional food for promoting human health. © 2022 by the authors.