Epoxidation - A consequence of cell damage

Products obtained after plant cell injury were studied by dividing white cabbage leaves (Brassica oleracea) in two parts. One part was heated to denaturate enzymes, homogenized, and stirred for six hours. After chromatographic separation and appropriate derivatization, the fractions were analyzed fo...

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Bibliographic Details
Published inMonatshefte für Chemie Vol. 128; no. 4; pp. 411 - 420
Main Authors Thums, R, Spiteller, G
Format Journal Article
LanguageEnglish
Published WIEN Springer Nature 01.04.1997
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
LIPOXYGENASE PRODUCTS
LIPID-PEROXIDATION
cell injury
FATTY-ACIDS
ARACHIDONIC-ACID
lipid peroxidation
LINOLEIC-ACID HYDROPEROXIDE
Brassica oleracea
epoxidation
METHYL JASMONATE
GAS-CHROMATOGRAPHY
GENE-EXPRESSION
POTATO-TUBER
DERIVATIVES
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Summary:Products obtained after plant cell injury were studied by dividing white cabbage leaves (Brassica oleracea) in two parts. One part was heated to denaturate enzymes, homogenized, and stirred for six hours. After chromatographic separation and appropriate derivatization, the fractions were analyzed for low molecular weight compounds by GCMS. The other part was homogenized without cooking, but treated and analyzed in exactly the same way as the non-cooked sample. Comparison of the thus obtained products revealed that - besided already well known lipid peroxidation processes, e.g. generation of stress hormones as well as liberation and oxidation of phenolic compounds - a main but less known way of oxidative destruction was observed: epoxidation. The reaction not only involves unsaturated fatty acids, but also sterols and terpenes. This seems to be a typical response of plant cells to injury.
ISSN:0026-9247
1434-4475
DOI:10.1007/BF00810778