Microcomputer interface for computer-controlled enzyme kinetic studies with the monolayer technique |
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Authors: | G M Donné-Op den Kelder H van der Wildt G H de Haas |
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Institution: | 1. Botanisches Institut der Universität zu Köln, Gyrhofstrasse 15, 5000 Köln 41, Federal Republic of Germany;2. Institut für Spektrochemie, Postfach 778, 4600 Dortmund 1, Federal Republic of Germany |
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Abstract: | Periodic acid oxidation in methanol followed by incubation with 1, 1-dimethylhydrazine results in release of diacylglycerols from 1,2-diacyl-3-glycosyl-sn-glycerols. During hydrazinolysis of oxidized monogalactosyl diacylglycerol, an intermediate hydrazone derivative was observed which was isolated and identified. The diacylglycerols recovered are 1,2-diacyl isomers containing the same fatty acid mixtures as the intact glycolipids. The yields of diacylglycerols released from plant monogalactosyl-, digalactosyl-, and sulfoquinovosyl diacylglycerols were in the range of 30-50%. The method may be used for analysis of molecular species and for preparative purposes. |
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Keywords: | periodate oxidation hydrazinolysis analytical and preparative scale representative diacylglycerols |
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