Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Study on Physicochemical Properties of Achyranthes japonica and Smilax china Extracts

쇠무릎과 청미래덩굴 부위별 추출물의 이화학적 특성에 관한 연구

  • Jeong, Kap-Seop (Department of Food Science & Technology, Tongmyong University)
  • Received : 2011.04.07
  • Accepted : 2011.07.07
  • Published : 2011.07.31
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Abstract

Physicochemical properties of Achyranthes japonica and Smilax china extracts were investigated for the purpose of functionality research on the natural bio-resources. Extraction contents were order of distilled water>methanol>ethanol solvent, the highest free aminoacids were proline from Achyranthes japonica, phosphoserine and glutamic acid from Smilax china, respectively. BI and TAC by spectrophotometric absorbance were order of methanol>ethanol>water in Smilax china leaf extract, but water>methaol>ethanol in Achyranthes japonica leaf extract. EDA was high in ethanol extract from Smilax china leaf and in methanol extract from Smilax china root, and in water extract from Achyranthes japonica. TBA value of Achyranthes japonica leaf and Smilax china leaf-ethanol extracts on olive oil was 82.1% and 84.0%, respectively, for that of an artificial antioxidant BHT. Antimicrobial effect was observed in Achyranthes japonica stem-methanol extract on Bacillus subtillis, in Smilax china leaf-ethanol extract on Bacillus subtillis, Vibrio vulnificus and Salmonella enterica, respectively. And the adsorption of Pb(II) on Achyranthes japonica was higher than that of Cd(II) on Smilax china under the same metal ion concentration.

야생생물자원의 기능성 탐색의 일환으로 쇠무릎과 청미래덩굴의 부위별 추출물에 대한 몇 가지 이화학적 특성을 비교 고찰하였다. 추출률은 증류수>메탄올>에탄올 순이었으며, 추출된 유리 아미노산은 총 16종으로서 쇠무릎은 proline이, 청미래덩굴은 phosphoserine과 glutamic acid의 함량이 가장 높았다. 갈변도와 방향족 화합물 함량은 청미래덩굴 잎은 메탄올 추출물이 가장 높고 에탄올, 증류수 순이었으나, 쇠무릎 잎의 경우 증류수 추출물의 흡광도가 가장 높고, 메탄올, 에탄올 순으로 나타났다. 청미래덩굴 잎과 뿌리의 전자공여능은 잎은 에탄올>메탄올>증류수, 뿌리는 메탄올>에탄올>증류수 순이었고 쇠무릎은 증류수>에탄올>메탄올 순이었다. 올리브유에 대한 산화억제 작용은 TBA가를 기준하여 합성 항산화제인 BHT에 비해 쇠무릎 잎은 82.1%, 청미래덩굴 잎은 84.0%의 값을 보였다. 쇠무릎 줄기의 메탄올 추출물은 Bacillus subtillis에 대해 항균력을 보였으며, 청미래덩굴 잎 추출물은 Bacillus subtillis, Vibrio vulnificus 및 Salmonella enterica에 대하여 항균력이 있었다. 그리고 중금속 이온의 흡착 및 회수실험 결과 동일한 금속농도에서 Cd(II)에 대한 청미래덩굴의 흡착률보다 Pb(II)에 대한 쇠무릎의 흡착률이 더 높았다.

Keywords

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