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Comparative studies on bioconversion of benzaldehyde to L ‐phenylacetylcarbinol ( L ‐PAC) using calcium alginate‐ and barium alginate‐immobilized cells of Torulaspora delbrueckii
Author(s) -
Shukla Vilas B,
Kulkarni Pushpa R
Publication year - 2003
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.863
Subject(s) - calcium alginate , torulaspora delbrueckii , chemistry , barium , bioconversion , calcium , benzaldehyde , nuclear chemistry , chromatography , biochemistry , catalysis , organic chemistry , fermentation , gene , saccharomyces , saccharomyces cerevisiae
Comparison of the production of L ‐phenylacetylcarbinol ( L ‐PAC) from benzaldehyde by cells of Torulaspora delbrueckii immobilized in calcium alginate and barium alginate showed that cells immobilized in calcium alginate beads were usable for up to six cycles compared with nine cycles for barium alginate‐immobilized cells. Barium alginate‐immobilized cells yielded a total of 2.17 g of L ‐PAC in nine cycles whereas in the case of calcium alginate‐immobilized cells, a total of 1.17 g of L ‐PAC was formed when 400 mg benzaldehyde and 400 mm 3 of acetaldehyde were used in each cycle as substrate and co‐substrate respectively. Copyright © 2003 Society of Chemical Industry