Properties of Chopi Oleoresin Extracted with Various Solvents and Effects of Extraction Conditions on Volatile Components

초피 Oleoresin 제조시 용매에 따른 추출물특성과 추출조건에 따른 휘발성 성분 변화

  • 최용희 (경북대학교 식품공학과) ;
  • 허상선 (경북대학교 농업과학기술연구소) ;
  • 배동호 (건국대학교 응용생물화학과) ;
  • 김상욱 (경북대학교 식품공학과)
  • Published : 1998.06.01

Abstract

Such extraction conditions as the kinds of solvent, extracting temperature, extracting time, ratio of material to solvent and particle size of material, were studied to maximize the extraction of oleoresin from chipi. Larger amount of soluble solids were extracted from seeds with nonpolar solvents (hexane, pentane, ether) for extraction, because the seeds contained large amount of crude fats and monoterpene(limonene) volatile compounds. Larger amount of soluble solids were extracted from peel with polar solvents(methanol, ethanol) of extraction because of large amount of water soluble colors, sugars and oxygenated terpene bolatile compounds in the peel. The application of the solvents in intermediate polarity (dichloromethane, acetone) resulted in more effective extraction of soluble solid and volatile compounds. Expecially, dichloromethane was an excellent solvent in extraction of volatile compounds. In the concern of volatile compound recovery yield, the optimum extraction conditions, such as temperature, time, mixing ratio of material to dichloromethane and mean particle size, were $25^{\circ}C$, 10min, 1:10(w/v), 355~250${\mu}{\textrm}{m}$ for chopi peels and 3$0^{\circ}C$, 10min, 1:8(w/v), 355~250${\mu}{\textrm}{m}$ for chopi seeds, respectively.

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