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Journal of Lipid Research, Vol 16, 67-74, Copyright © 1975 by Lipid Research, Inc.
ARTICLES |
HL Brockman, FJ Kezdy and JH Law
The rate of lipolytic enzyme-catalyzed reactions yielding water-soluble products can be measured by isobaric titration. The method is based upon the measurement of the amount of substrate that must be added to a monalayer to maintain constant surface pressure during the course of the enzymatic reaction. The rate constants determined for the hydrolysis of trioctanion and 1,2-diotanoin by pancreatic lipase were identical with those determined by the variable surface pressure method and by a radioactive substrate technique. This direct titrimetric method has a wider dynamic range and more versatility for following surface reactions that previously described systems.
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