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A Study on Physiochemical Characteristics of Xanthoceras sorbifolia Seeds Oil

문관나무 종자유의 이화학적 특성 분석

  • Park, Yu Hwa (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services) ;
  • Lee, Ki Yeon (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services) ;
  • Hong, Soo Young (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services) ;
  • Kim, Hee Yeon (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services) ;
  • Heo, Nam Ki (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services) ;
  • Kim, Kyung Hee (Agriproduct Processing Experiment Station Gangwon-do Agicultural Research and Experiment Services)
  • Received : 2012.08.22
  • Accepted : 2012.12.04
  • Published : 2012.12.31

Abstract

This study investigated the physiochemical characteristics of Xanthoceras sorbifolia seed oil. Xanthoceras sorbifolia seed oil was extracted by supercritical fluid extraction (420 atm, $50^{\circ}C$), hexane extraction and heat-pressed extraction ($160^{\circ}C$, $180^{\circ}C$). Acid values and peroxide values were evaluated, as well as the degree of lipid oxidation. The heat-pressed ($160^{\circ}C$) extraction gave a $53.5{\pm}2.5%$ higher yield of oil, compared with the other extraction methods. The acid values from the super critical fluid extraction were the highest, while peroxide values were highest from the heat-pressed extraction at $160^{\circ}C$ (3.10 meq/kg). The contents of linolenic acid and oleic acid were 38.63~41.13% and 26.29~26.85%, respectively. Contents of stigmasterol and ${\beta}$-sitosterol were 6.01~6.49 mg/100 g and 58.19~59.85 mg/100 g, respectively. These results indicate that Xanthoceras sorbifolia seed oil can possibly serve as new edible oils.

본 연구는 문관나무 종자유로부터 새로운 유지자원으로의 활용 가능성을 평가하기 위하여 여러 가지 이화학적 특성분석을 하였다. 문관나무 종자유를 초임계 추출(420 atm, $50^{\circ}C$), 헥산 추출, 가열압착($160^{\circ}C$, $180^{\circ}C$) 방법으로 추출하였다. 그 결과 추출 수율은 헥산 추출이 $53.5{\pm}2.5%$로 가장 높았으며, 다음으로 $160^{\circ}C$ 가열압착 추출이 $48.3{\pm}6.5%$, $180^{\circ}C$ 가열압착 추출과 초임계 추출은 각각 $44.7{\pm}1.7%$, $44.7{\pm}2.5%$의 수율을 보였다. 산가를 측정한 결과, 초임계 추출 종자유가 3.44 mg/g으로 가장 높았으며 가열압착 추출 종자유가 1.3 mg/g 정도로 가장 낮았다. 문관과 종자유의 과산화물가를 측정한 결과, 가열압착 추출 종자유($160^{\circ}C$)가 3.10 meq/kg으로 가장 높았으며 다음으로 가열압착 추출 종자유($180^{\circ}C$)가 2.36 meq/kg, 헥산 추출 종자유와 초임계 추출종자유가 각각 1.59, 1.13 meq/kg 순으로 나타났다. 문관나무의 종자유로부터 지방산 조성을 분석한 결과 oleic acid(C18:1)와 linoleic acid(C18:2)가 60% 이상 함유되어 있었다. 또한 문관나무 종자유의 총 phytosterol 실험 결과 가열압착 추출 종자유($160^{\circ}C$)의 함량이 $65.91{\pm}0.62$ mg/100 g으로 가장 높았다. 본 연구는 문관나무 종자유의 추출방법별 이화학적 특성 분석을 통해 문관나무 종자유 활용에 대한 기초자료로 활용될 수 있을 것으로 판단된다.

Keywords

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