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Antioxidant and α-Glucosidase Inhibitory Activity of Colored Grains in China
Abstract
Colored grains including red, purple, and black rice, purple corn, black barley, and black soybean contain anthocyanins. The present study was designed to (i) identify and quantify the individual anthocyanins and measure the total phenolic content (TPC), (ii) evaluate the antioxidant and alpha-glucosidase inhibitory activity, and (iii) correlate the TPC with total antioxidant activity and alpha-glucosidase inhibitory potency in these colored grains. The TPC was measured using a Folin-Ciocalteu assay, while the total antioxidant activity was determined by a method based on the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity. Among all of the studied colored grains, black rice possessed the highest TPC, which was 86 times greater than that of red rice. In addition, black rice had the highest total anthocyanin contents and alpha-glucosidase inhibitory activity. A significant positive correlation of the antioxidant activity and alpha-glucosidase inhibitory activity with total anthocyanin content and TPC was observed in this study. It is concluded that black rice possesses the highest antioxidant activity and alpha-glucosidase inhibitory among all of the colored grains tested and can be further explored as a functional food.
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Cited by
Impact of Dietary Polyphenols on Carbohydrate Metabolism
Hanhineva, K., Törrönen, R., Bondia-Pons, I., Pekkinen, J., Kolehmainen, M., Mykkänen, H., & Poutanen, K. (2010) · International Journal of Molecular Sciences · doi:10.3390/ijms11041365 · Cited by 1,157
Podsędek, A., Majewska, I., Redzynia, M., Sosnowska, D., & Koziołkiewicz, M. (2014) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf5008264 · Cited by 266
Han, Y., Chi, J., Zhang, M., Zhang, R., Fan, S., Huang, F., Xue, K., & Liu, L. (2019) · Bioscience Biotechnology and Biochemistry · doi:10.1080/09168451.2019.1638756 · Cited by 76
Premakumara, G. A. S., Abeysekera, W. K. S. M., Ratnasooriya, W. D., Chandrasekharan, N. V., & Bentota, A. P. (2013) · Journal of Cereal Science · doi:10.1016/j.jcs.2013.09.004 · Cited by 68
Metadata
- Authors
- Yao, Y., Sang, W., Zhou, M., & Ren, G.
- Venue
- Journal of Agricultural and Food Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-01-27
- Volume
- 58
- Issue
- 2
- Pages
- 770-774
- ISSN
- 0021-8561 (ISSN-L)
- 1520-5118
- OpenAlex
- W2044168994
- Cited by
- 277
- References
- 0
- FWCI
- 6.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yao, Y., Sang, W., Zhou, M., & Ren, G. (2010). Antioxidant and α-Glucosidase Inhibitory Activity of Colored Grains in China. Journal of Agricultural and Food Chemistry. https://doi.org/10.1021/jf903234c
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