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논문 상세정보

Abstract

The compositions and antioxidant activities of tree and hydrolyzed phenolic acids, which are aglycones of esterified phenolic acids, in wild ginseng leaves were investigated. The contents of tree and hydrolyzed phenolic acids in the wild ginseng leaves were $422.4\;{\pm}\;3.5$ and $319.6\;{\pm}\;5.7\;mg/100\;g$, respectively, as gallic acid equivalents. Free phenolic acids were composed of 55.3% benzoic acid derivatives and 44.6% phenylpropanoids. The major constituents of free phenolic acids in the ginseng leaves were syringic (139.4 mg/l00 g) and sinapic (131.2 mg/100 g) acids. On the other hand, hydrolyzed phenolic acids in the ginseng leaves were mainly composed of caffeic (59.4 mg/100 g), ferulic (49.5 mg/100 g), and p-coumaric (33.8 mg/100g) acids. Phenylpropanoid content was higher (82.7%) than benzoic acid derivatives (17.3%). $IC_{50}$ values of DPPH radical scavenging activity were $10.2\;{\mu}g/mL$ for tree phenolic acids and 8.0 mg/mL for hydrolyzed phenolic acids, as gallic acid equivalents. Hydrolyzed phenolic acids also exhibited higher hydroxyl and superoxide radical scavenging activities than free phenolic acids did. These results indicated that the antioxidant activities of the wild ginseng leaves were correlated more closely with phenylpropanoid contents than with total amount of phenolics.

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이 논문을 인용한 문헌 (12)

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  9. 2008. "" Food science and biotechnology, 17(4): 718~722 
  10. Kim, Jung-Ok ; Kim, Jeung-Bea ; Kim, Hak-Yoon 2009. "Anti-oxidative activity of the herb mixture prescribed to induce blood glucose level and effect on the differentiation of 3T3-L1 fibroblast" 한국식품저장유통학회지 = Korean journal of food preservation, 16(1): 115~121 
  11. 2011. "" Journal of ginseng research = 高麗人參學會誌, 35(4): 442~448 
  12. 2011. "" Journal of food science and nutrition, 16(2): 110~116 

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