Korean Journal of Food Science and Technology (한국식품과학회지)
- Volume 31 Issue 5
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- Pages.1178-1183
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- 1999
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- 0367-6293(pISSN)
Analysis of Essential Oils from the Peel of Mandarine (Citrus unshiu Marc. Var. Okitsu)
온주 밀감의 껍질로부터 정유의 분리 및 분석
- Kim, Yu-Kyoung (Agricultural Environment Research Division, Cheju-do Agricultural Research and Extension Services) ;
- Hyun, Seung-Won (Agricultural Environment Research Division, Cheju-do Agricultural Research and Extension Services) ;
- Ko, Young-Hwan (Department of Food Science and Engineering, Instiute of Life Science, Cheju National University)
- Published : 1999.10.31
Abstract
Essential oils were isolated from the peel of mandarin (Citrus unshiu Marc. Var. Okitsu) cultivated in Cheju Island. Among three different isolation methods investigated, simultaneous distillation gave higher yield 1.14%(w/w) than solvent extraction or cold pressing. The densities of essential oils were between 0.8409 and 0.8530, which showed no significant effect of the isolation methods. Some variations in the number of constituents detected and the content of d-limonene in the peel oils were observed depending upon the isolation methods. The citrus fruit was collected seasonally from the field and used as a sample for analysis. The peel thickness and the peel content of citrus fruit were around 2 mm and about 17% on wet weight basis, respectively, in harvest season. The maximum yield of essential oils was obtained in September from citrus peels just prior to ripeness and thereafter the yield had a tendency of decrease but remained over 1%(w/w). The relative content of d-limonene, the major constituent of citrus peel oils. increased gradually with ripening up to 68.69%(relative peak area, RPA). The other minor constituents were
제주도산 흥진조생 온주 밀감의 껍질 중에 함유된 정유의 분리 수율 및 성분을 조사하였다. 증류법, 저온압착법 그리고 용매추출법으로 온주 밀감의 껍질로 부터 정유를 분리하여, 각 방법에 따른 수율을 조사 비교한 결과, 증류법을 이용했을 때에 1.14%(w/w)로 가장 높았으며, 정유의 비중은