The Antioxidant Activities of Three Solvent(Ether, Butanol, Water) Extrats from Chestnut Inner Shell in Soybean Oil

대두유에 대한 율피의 용매분획별(Ether, Butanol, Water) 항산화효과

  • Oh, Seung-Hee (Department of Plant Biotechnology, Dongguk University) ;
  • Kim, Yong-Wook (Department of Plant Biotechnology, Dongguk University) ;
  • Kim, Myoung-Ae (Department of Food and Nutrition, Dongduk Women's University)
  • 오승희 (동국대학교 식물생명공학과) ;
  • 김용욱 (동국대학교 식물생명공학과) ;
  • 김명애 (동덕여자대학교 식품영양학과)
  • Published : 2005.12.31

Abstract

This study was carried out to compare the antioxidant activities of the ether, butanol, water extracts from chestnut inner shell(Castanea crenata Sieb. et Zucc.) with those of tocopherol and BHA in soybean oil. All additives were added to soybean oil on the quantities of 0.02%. Comparing the antioxidant activities under autooxidation condition at $45.0{\pm}0.5$ for 42days of the extracts were recorded in the order of butanol>ether>control>BHA>tocopherol depending on the solvent. Under the condition at $60.0{\pm}0.5^{\circ}C$ for 32days, the butanol extracts represented the high antioxidation effect, however, there was no significant differences between the ether extracts and control. Under thermal oxidation condition, the ether extract showed stronger antioxidant activity than those of the butanol extract. In the results of polyphenol compound analysis, ellagic acid, quercetin, morin, naringenin, flavanol were included in the ether extracts and ellagic acid, naringenin, gallic acid, flavanol were included in the butanol extracts, respectively. Among them, ellagic acid in ether extract and gallic acid and naringenin in butanol extracts seed to increase the antioxidant activities in the substrate oil.

대두유에 율피의 용매분획별(에테르, 부탄올, 물) 추출물과 tocopherol, BHA를 각각 0.02% 첨가한 후 자동산화 및 가열 산화시 항산화효과를 비교하였다. 1. 자동산화시 과산화물가를 통한 항산화력 비교에서 $45^{\circ}C$에서 42일간 저장한 경우 부탄올추출물 > 에테르추출물 > 무첨가구 > BHA > 토코페롤 순으로 항산화력이 있었고, $60^{\circ}C$에서 32일간 저장한 경우에도 부탄올 추출물이 강한 항산화력을 보였으며, 에테르추출물은 무첨가구와 큰 차이가 없었다. 2. 가열산화의 경우 에테르추출물이 우수한 항산화력을 나타내었다. 3. 추출물의 용매별 항산화성분의 분석결과 에테르추출물에는 ellagic acid, quercetin, morin, naringenin, flavanol로서 주요성분은 ellagic acid이었다. 이들 성분의 총량은 에테르추출물 49.09%(w/w), 부탄올추출물 76.26%(w/w)로서 부탄올 추출물에 폴리페놀성분이 다량 함유되어있어 우수한 항산화효과에 영향을 미친 것으로 판단된다. 부탄올추출물에는 ellagic acid, naringenin, gallic acid, flavanol이 있었으며, 주요성분은 naringenin, gallic acid로서 이들 성분들이 항산화 효과에 영향을 미친 것으로 사료된다.

Keywords

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