The Photoxidative Alteration of Chlorophylls in Methyl Linoleate and Prooxidant Activity of Their Decomposition Products
- 1 April 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Agricultural and Biological Chemistry
- Vol. 48 (4) , 985-989
- https://doi.org/10.1080/00021369.1984.10866253
Abstract
Methyl linoleate containing chlorophylls and/or pheophytins was exposed to light in the presence of oxygen. The photooxidative reaction of both chlorophylls a and b was first-order, and the reaction rate for chlorophyll a was higher than that for chlorophyll b. On the other hand, pheophytins a and b hardly decomposed even after irradiation for 24 hr, and retained a green or a brownish-green color. In qualitative analysis of the photooxidation products of chlorophylls a and b, no pheophytins or pheophorbides were detected, while green and polar red pigments were observed on a thin layer chromatogram near the spot of chlorophyll and the origin, respectively. These photooxidation compounds also had prooxidant effects as well as did chlorophyll.This publication has 1 reference indexed in Scilit:
- On the relative intensities of the “blue” and “red” absorption bands of chlorophyll aBiochimica et Biophysica Acta (BBA) - Specialized Section on Biophysical Subjects, 1964