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http://nopr.niscpr.res.in/handle/123456789/15269| Title: | Pseudomonas cepacia lipase - mediated transesterification reactions of hydrocinnamates |
| Authors: | Priya, K Venugopal, T Chadha, Anju |
| Issue Date: | Aug-2002 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Use of lipase from Pseudomonas cepacia in transesterifcation reactions of ethyl hydrocinnamate with different alcohols has been examined. Among the alcohols tested, viz., n-butanol, iso-amyl alcohol, benzyl alcohol, n-octanol and 1-phenylethanol, only n-butanol yielded the transesterified product. Among the solvents tested, viz., n-heptane, n-hexane, cyclohexane, toluene, diisopropylether and n-butanol, the initial rate of transesterification proceeded in the order cyclohexane > n-heptane > n-hexane > diisopropylether > n-butanol > toluene. Using hexane as the solvent and a substrate to enzyme ratio of 1 :5, the substrate to alcohol ratio was varied to maximize the yield. n-Butyl hydrocinnamate was obtained in 92% yield in 48 hr by employing a 1:1 (wt/wt) ratio of ethyl hydrocinnamate to lipase and a 1:5 (vol/vol) ratio of ethyl hydrocinnamate to n-butanol in hexane. |
| Page(s): | 259-263 |
| ISSN: | 0975-0959 (Online); 0301-1208 (Print) |
| Appears in Collections: | IJBB Vol.39(4) [August 2002] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJBB 39(4) 259-263.pdf | 1.07 MB | Adobe PDF | View/Open |
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