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Antioxidant Activity and Functional Component Analysis of Korean Mountain Ginseng's Different Sections

장뇌삼 부위별 기능성 성분분석과 항산화활성

  • 김준한 (대구신기술사업단 바이오산업지원센터) ;
  • 김종국 (상주대학교 식품영양학과)
  • Published : 2006.12.29

Abstract

This study was conducted to investigate antioxidant activity and functional component analysis in different sections of Korean mountain ginseng (seed, leaf, stem and root). The major free amino acids were arginine, proline, $\gamma-amino-n-butyric$ acid, alanine and aspartic acid, and proline showed the highest content 22.98 mg/g in 80% MeOH extract of seed. Contents of $\gamma-amino-n-butyric$ acid and alanine were the highest in 80% MeOH extract of leaf, with 26.04 mg/g and 13.07 mg/g. Aspartic acid showed the highest content 23.42 mg/g in 80% MeOH extract of leaf. The major fatty acids were identified as palmitic acid, oleic acid and linoleic acid by GC. Content of total phenolic compounds were 737 mg% in 80% EtOH extract of seed, and 560 mg% in 80% MeOH extract of seed. The highest contents of ferulic acid and salicylic acid were $875{\mu}g/g\;and\;78{\mu}g/g$ in 80% MeOH extract of leaf, and $\rho-coumaric$ acid was $181{\mu}g/g$ in 80% MeOH extract of stem, respectively. The highest contents of ginsenoside-Rg1, Re, Rd and Rc were $14.5{\mu}g/g,\;48.78{\mu}g/g,\;27.57{\mu}g/g\;and\;4.87{\mu}g/g$ in 80% MeOH extract of leaf, respectively. Antioxidant activities by DPPH were 83.82% in water extract of leaf, 89.74% in 80% EtOH extract of leaf and 88.37% in 80% MeOH extract of leaf, and 92.81% in BHA (200 ppm). These results suggest that Korean mountain ginseng is very important as functional food material.

장뇌삼 부위별로 용매를 달리하여 추출한 추출물의 기능성 성분분석과 항산화활성을 측정하였다. 장뇌삼 부위별 추출물의 주요 유리아미노산으로는 arginine, proline, $\gamma-amino-n-butyric$ acid, alanine 및 aspartic acid가 매우 높은 함량을 보였으며, 특히 proline은 씨앗의 80% 메탄을 추출물에 22.98 mg/g으로 가장 높은 함량을 보였으며, 또한 $\gamma-amino-n-butyric$ acid와 alanine은 잎의 80% 메탄을 추출물에 각각 26.04 mg/g과 13.07 mg/g으로 가장 높은 함량을, aspartic acid는 잎의 80% 메탄을 추출물에 23.42 mg/g으로 가장 높은 함량을 함유하고 있었다. 주요 지방산으로는 palmitic acid, oleic acid, linoleic acid가 매우 높은 함량을 보였다. 총페놀 함량든 씨앗의 80% 에탄올 추출물에 737 mg% 이었고, 씨앗의 80% 메탄올 추출물에 560 mg%의 함량을 함유하였다. 주요 페놀산으로는 ferulic acid, salicylic acid, caffeic acid 및 $\rho-coumaric$ acid 등으로 확인되었다. Ferulic acid는 잎의 80% 메탄올 추출물에 $875{\mu}g/g$으로 가장 많았고, salicylic acid는 잎의 80% 메탄을 추출물에 $78{\mu}g/g$의로 가장 많았고, caffeic acid는 잎의 80% 에탄을 추출물에 $50{\mu}g/g$으로 가장 많았으며, $\rho-coumaric$ acid는 줄기의 80% 메탄을 추출물에 $181{\mu}g/g$으로 가장 많은 함량을 나타내었다. 사포닌 조성으로 Rg1 함량은 잎의 80% 메탄올 추출물에 $44.15{\mu}g/g$이었고, Re 함량은 잎의 80% 메탄올 추출물에 $48.78{\mu}g/g$으로 가장 많았으며, Rd 함량은 잎의 80% 메탄올 추출물에 $25.57{\mu}g/g$으로 가장 많았고, Rc 함량은 잎의 80% 메탄을 추출물에 $4.87{\mu}g/g$으로 가장 많았다. 항산화활성은 잎의 물 추출물이 83.82%이었으며, 잎의 80% 에탄올 추출물이 89.74%이었으며, 잎의 80% 메탄을 추출물이 88.37%의 활성을 나타내었다.

Keywords

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