Dependency of Water Availability on the Esterifying Activity of Candida cylindracea Lipase in Organic Solvent

To establish optimal conditions for esterification by Candida cylindracea, lipase reactions were performed simultaneously, separately, or individually in the varying initial rates of <TEX>$0.014-0.060mu$</TEX>mole free fatty acids consumed min-1g-1. The reactants which were conditioned at aw of 0.12 gave the highest initial rate of esterifying <TEX>$0.060mu$</TEX>mole free fatty acids consumed min-1g-1. These results suggest that the esterifying activity of lipase in an organic system depends on the transfer of available water within the reaction system.

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