Isoamyl acetate was synthesised in high yields (>90%) via lipase catalysed acylation of the corresponding alcohol by ammonium acetate in supercritical carbon dioxide (SCCD) and by acetic acid in hexane. The esterification rate was higher in hexane. The product yield depended sharply on the reagent c
Comparison of lipase-catalysed esterification in supercritical carbon dioxide and in n-hexane
β Scribed by A. Marty; W. Chulalaksananukul; J. S. Condoret; R. M. Willemot; G. Durand
- Publisher
- Springer Netherlands
- Year
- 1990
- Tongue
- English
- Weight
- 310 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0141-5492
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π SIMILAR VOLUMES
The acylation of glucose with lauric acid in a reaction catalysed by two Candida lipases and a Mucor miehei lipase in supercritical carbon dioxide was investigated. A linear dependence of the reaction rate on enzyme (SCCO 2 ) concentration was observed. Studies on the e β ect of temperature on enzyme
The reaction rates in supercritical carbon dioxide at optimized conditions and in n-hexane were slmllar.
The ester syntheses from acyl donors and terpene alcohols catalyzed by Candida cylindracea(CCL) lipase have been carried out in supercritical carbon dioxide(SC-CO2). In the nearcritical region, the rate of esterification showed a sharp maximum and /-terpene esters were stereoselectively synthesized