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Journal Article

Journal Article

Isolation of Anthocyanin from Black Rice (Heugjinjubyeo) and Screening of its Antioxidant Activities  [2008]

Park, Y.S. (Korea University, Seoul, Republic of Korea); Kim, S.J. (Korea University, Seoul, Republic of Korea); Chang, H.I. (Korea University, Seoul, Republic of Korea), E-mail: hichang@korea.ac.kr;

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Colored rices are a hulled grains having red or purple pigments in bran. Especially black rice (Heugjinjubyeo) is considered to be a healthy food in Asia. Black rice is of great interesting because of the possible biological activity with their anthocyanins. Anthocyanins are water-soluble plant pigments and representatives of flavonoids. The anthocyanins in black rice include cyanidin 3-O-glucoside, peonidin 3-O-glucoside, malvidin 3-O-glucoside, pelagonidin 3-O-glucoside and delphinidin 3-O-glucoside. In this study, anthocyanins in a black rice were analyzed quantitatively and qualitatively with HPLC and UV-Vis spectrophotometer. The anthocyanins contained approximately 95% of cyanidin-3-O-glucoside and 5% of peonidin-3-O-glucoside. Antioxidant activities of the anthocyanin extract were investigated by using various in vitro methods. The 100g/ml concentration of the anthocyanin extracted exhibited 88.83% inhibition on the peroxidation of linoleic acid, 55.20% DPPH free radical scavenging activity, 54.96% superoxide anion radical scavenging activity, and 72.67% hydrogen peroxide scavenging activity. And it also showed high ferrous ion reducing capability. These results suggest that the anthocyanin extracted from black rice may be utilized as a possible antioxdiant agent against ROS.
From the journal
Korean Journal of Microbiology and Biotechnology
ISSN : 1598-642X

Bibliographic information

Language:
English
Type:
Directory
In AGRIS since:
2010
Volume:
36
Issue:
1
Start Page:
55
End Page:
60
All titles:
"Isolation of Anthocyanin from Black Rice (Heugjinjubyeo) and Screening of its Antioxidant Activities"@eng
Other:
"Summary(En)"
"5ill., 17 ref."
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Bibliographic information

Language:
English
Type:
Directory
In AGRIS since:
2010
Volume:
36
Issue:
1
Start Page:
55
End Page:
60
All titles:
"Isolation of Anthocyanin from Black Rice (Heugjinjubyeo) and Screening of its Antioxidant Activities"@eng
Other:
"Summary(En)"
"5ill., 17 ref."