The sol-el fi method, usin 6 a mixture of tetramethoxysilane (TMOS) and methyltrimet ox P silane (MTrM S) as the silicon alkoxide precursor, has been applied to entrapment o lipase catalyzing esterification reactions in organic media. Increasing molar ratio of MTrMOS to TMOS led to formation of opaq
Entrapment of lipase in silica glass by the sol-gel method and its esterification activity in organic media
β Scribed by Koei Kawakami; Shigehiro Yoshida
- Publisher
- Springer-Verlag
- Year
- 1994
- Tongue
- English
- Weight
- 396 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0951-208X
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β¦ Synopsis
Silica glass-entrapped lipase was prepared by the sol-gel method using tetramethoxysilane, and its esterification activity in n-hexane was examined for isoamylbutyrate formation. The hydrogel preparation containing a large amount of water exhibited enough activity. Although the activity of xerogel-entrapped lipase drastically decreased probably due to shrinkage of the gel matrix, the lyophilized gel retained much higher activity than the air-dried gel.
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