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A kinetic model for the decrease in lipase activity of rhizopus arrhizus and penicillium cyclopium mycelia in organic media
Author(s) -
Tuccio Béatrice,
Ferre Elisée,
Comeau Louis,
Lauricella Robert
Publication year - 1992
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.280550104
Subject(s) - rhizopus arrhizus , lipase , mycelium , chemistry , yield (engineering) , rhizopus oryzae , penicillium , organic chemistry , food science , biology , botany , enzyme , materials science , fermentation , metallurgy
The decrease in Lipase activity of Rhizopus arrhizus and Penicillium cyclopium mycelia (RAM and PCM) were studied in alkanes, ethers and chloroalkanes. The two biocatalysts showed similar behaviour in organic media, although RAM was slightly more stable. The kinetic model obtained indicated that the decrease in activity followed a succession of two first‐order reactions. Both RAM and PCM were more stable in hydrophobic solvents. These two mycelia were used to synthesize N ‐octyl‐myristylamide; yield of the amide was linked in a linear relationship to the average activity of biocatalyst in the solvent employed.