引用本文:
马林, 徐迪, 阮继武, 古练权. 脂肪酶酶粉催化的无溶剂酯交换反应[J]. 应用化学,
2003, 20(9): 853-856.
Citation: MA Lin, XU Di, RUAN Ji-Wu, GU Lian-Quan. Solvent-free Transesterification Catalyzed by Lipase Powder[J]. Chinese Journal of Applied Chemistry, 2003, 20(9): 853-856.
Citation: MA Lin, XU Di, RUAN Ji-Wu, GU Lian-Quan. Solvent-free Transesterification Catalyzed by Lipase Powder[J]. Chinese Journal of Applied Chemistry, 2003, 20(9): 853-856.
脂肪酶酶粉催化的无溶剂酯交换反应
English
Solvent-free Transesterification Catalyzed by Lipase Powder
Abstract:
The solvent-free transesterification of ethyl decanoate with 1-hexanol has been carried out by cata-lysis through direct mixing of powdered lipase, Rhizopus arrbizus or Candida rugosa, with carrier and substrates. The results showed that water content, amount of silica gel and reaction time affected the rate or yield of the reaction. For a mixture of 25 mg of silica gel, 5 mg of Rhizopus arrbizus lipase powder, 18 μL of 50 mmol/L phosphate buffer(pH=7.0) or 10 mg of Candida rugosa lipase powder, 15 μL of buffer, the both lipases catalyzed reactions proceed readily, and after 20 h, yield greater than 90% could be achieved. The lipase mixed with silica gel can be reused many times.
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Key words:
- lipase
- / silica gel
- / solvent-free reaction
- / transesterification
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