AGFD 74 |
| The objectives of this study were to characterize the peptides which were isolated from Korean fermented soybean paste, Chungkukjang, and to determine their radical scavenging activities. Four fractions were separated from Chungkukjang using a preparative LC equiped with GS-310 column. They were subjected to antioxidant activity by DPPH and NBT-reduction inhibition methods, identifying that the second fraction had higher antioxidant activities of 72.4% in DPPH and 81.4% in NBT method. The second fraction was re-fractioned with the W-252 column and separated into five fractions of which two fractions were identified to have higher antioxidant activity. The antioxidant activity was 69.1% and 70.5% in NBT method. Then, the two fractions were determined to have eight amino acids which were aspartic acid, threonine, serine, glutamic acid, glycine, lysine, histidine, and arginine. Gycine was found quantitably to be the major amino acid. The obtained two fractions were named as P-NICS-1 and P-NICS-2, respectively. |
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General Posters
1:00 PM-3:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Poster
Division of Agricultural & Food Chemistry |