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Antioxidant and alpha-glucosidase inhibitory activity of colored grains in China.
J Agric Food Chem. 2010 Jan 27; 58(2):770-4.JA

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.

Authors+Show Affiliations

Institute of Crop Science, Chinese Academy of Agricultural Sciences, No 80 South Xueyuan Road, Haidian District, Beijing 100081, People's Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19904935

Citation

Yao, Yang, et al. "Antioxidant and Alpha-glucosidase Inhibitory Activity of Colored Grains in China." Journal of Agricultural and Food Chemistry, vol. 58, no. 2, 2010, pp. 770-4.
Yao Y, Sang W, Zhou M, et al. Antioxidant and alpha-glucosidase inhibitory activity of colored grains in China. J Agric Food Chem. 2010;58(2):770-4.
Yao, Y., Sang, W., Zhou, M., & Ren, G. (2010). Antioxidant and alpha-glucosidase inhibitory activity of colored grains in China. Journal of Agricultural and Food Chemistry, 58(2), 770-4. https://doi.org/10.1021/jf903234c
Yao Y, et al. Antioxidant and Alpha-glucosidase Inhibitory Activity of Colored Grains in China. J Agric Food Chem. 2010 Jan 27;58(2):770-4. PubMed PMID: 19904935.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant and alpha-glucosidase inhibitory activity of colored grains in China. AU - Yao,Yang, AU - Sang,Wei, AU - Zhou,Mengjie, AU - Ren,Guixing, PY - 2009/11/13/entrez PY - 2009/11/13/pubmed PY - 2010/3/26/medline SP - 770 EP - 4 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 58 IS - 2 N2 - 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. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/19904935/Antioxidant_and_alpha_glucosidase_inhibitory_activity_of_colored_grains_in_China_ L2 - https://doi.org/10.1021/jf903234c DB - PRIME DP - Unbound Medicine ER -