한국식품저장유통학회:학술대회논문집 (Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference)

한국식품저장유통학회 (The Korean Society of Food Preservation)
권호 표지

Synthesis of Mono-,Diacylglycerol from Rice Bran Oil using lipase and Separation by Fractionation

  • Kim, Song-Hyun (Department of Food Science and Technology, Chungnam National University) ;
  • Lee, Ki-Teak (Department of Food Science and Technology, Chungnam National University)
  • 발행 : 2003.10.01
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초록

Mono-, diacylglycerol were synthesized by glycerolysis of bran oil and glycerol using IM60 (an immobilized lipase) in a stirred batch reactor for 72 hours. After glycerolysis, the composition TAG, DAG, MAG in product was 41.7%, 44.7%, and 11.1%, respectively. Glycerol was separated, then this mixture product was undergone fractionation for winterization followed. The fractionation was performed using hexane and acetone solvent to reduce palmitic acid at the low temperature for overnight individually. Temperature was set -40$^{\circ}C$, -14$^{\circ}C$, -8$^{\circ}C$ and 0$^{\circ}C$, respectively. By considering results from this experiments, fractionation with hexane at -8$^{\circ}C$ was most efficient regarding to yield without crystallization.

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