Characterization of Candida rugosa Lipase Entrapped into Organically Modified Silicates in Esterification of Menthol with Butyric Acid

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概要

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• Characteristics of Candida rugosa lipase, which was entrapped in various alkyl-substituted organic silicates formed on Celite 545, have been investigated. The hybrid gel-entrapped lipase derived from an equimolar mixture of dimethyldimethoxysilane and tetramethoxysilane exhibited three tines and ten times higher catalytic activity than deposited lipase on the sane support at 35℃ and 75℃, respectively. The enantioselectivily, defined as the ratio of the initial esterification rate of(-)-menthol to that of(+)-menthol, was increased with an increase in the chain length of the alkyl group and an increase in the number of the methyl group at 75℃, whereas it remained virtually unchanged at 35℃. The hydrophohic interaction between the lipase molecules and alkyl groups of the entrapping gel appeared to be a dominant factor for modification of the enzyme properties.

• 公益社団法人日本生物工学会の論文
• 1998-02-25

著者

• Kawakami Koei

  Chemical Engineering Group Department Of Materials Process Engineering Graduate School Of Engineerin

• FURUKAWA SHIN-YA

  Chemical Engineering Group, Department of Materials Process Engineering, Graduate School of Engineer

• Furukawa Shin-ya

  Chemical Engineering Group Department Of Materials Process Engineering Graduate School Of Engineerin

関連論文

• Characterization of Candida rugosa Lipase Entrapped into Organically Modified Silicates in Esterification of Menthol with Butyric Acid

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