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Lipase catalyzed esterification of cresols.

IR@CSIR-CFTRI

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Relation http://ir.cftri.com/4559/
 
Title Lipase catalyzed esterification of cresols.
 
Creator Suresh Babu, C. V.
Karanth, N. G.
Divakar, S.
 
Subject 08 Food Chemistry
 
Description Esters of m- and p-cresols with organic acids having carbon chain lengths C2-C18 have been prepared by using lipases from porcine pancreas and Rhizomucor miehei. Gram level conversions are carried out under non-solvent conditions in case of shake flask experiments and continuous removal of water at bench-scale levels. Addition of 0.1 mL of 0.1M phosphate buffer at pH 7.0 to the reaction mixture shows better conversions. Optimization studies have been carried out for p-cresyl laurate synthesis using Rhizomucor miehei lipase which show a maximum conversion of 74.4%. Better conversions are obtained with larger amounts of enzyme. Porcine pancrease lipase catalyzed synthesis of m- and p-cresyl esters show that under identical reaction conditions acids with lower carbon chain lengths (C2-C4) give ester yields above 30%, while those with longer carbon chain lengths give ester yields < 30%.
 
Date 2002
 
Type Article
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/4559/1/Indian_Journal_of_Chemistry_2002_41B_1068-1071.pdf
Suresh Babu, C. V. and Karanth, N. G. and Divakar, S. (2002) Lipase catalyzed esterification of cresols. Indian Journal of Chemistry, 41B (5). pp. 1068-1071.