• 제목/요약/키워드: Organic Synthesis

검색결과 1,227건 처리시간 0.022초

유기용매계에서 리파제에 의한 에스테르 화합물 합성 (The Synthesis of Ester Compound by Lipase in Organic Solvents)

  • Kim, Boo-Chul;Lee, Jae-Dong;Lee, Tae-Ho
    • 한국식품영양과학회지
    • /
    • 제23권3호
    • /
    • pp.496-501
    • /
    • 1994

  • The synthesis of lauryl palmitate from palmitic acid and lauryl alcohol was investigated in organic solvents using lipase. Water-immiscible organic solvent such as hexane, toluenem cyclohexane, and isooctane were found to be suitable of ester synthesis . The effect of water content on the initial rate of conversion was examined . As the content increased, the reaction rate increased. But addition of water in organic solvent decreased therostability of enzyme . The best lauryl palmitate synthesis was achieved with water content of 0.2-0.4% reaction temperature of 4$0^{\circ}C$ and 45$^{\circ}C$ for Candida cylindracea lipase porcine, pancreatic lipase, respectively. when ester synthesis was carried out under the optimum conditions, the conversion yield of palmitate into lauryl palmitate after 70hrs reached 85% and 69 % for the Candida cylindracea lipase and porcine opancreatic lipase, respectivley.

  • PDF