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ELECTRONICALLY EXCITED STATES IN MICROSOMAL MEMBRANES: USE OF CHLOROPHYLL‐ a AS AN INDICATOR OF TRIPLET CARBONYLS
Author(s) -
Cadenas Enrique,
Siesi Helmut,
Campa Ana,
Cilento Giuseppe
Publication year - 1984
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1984.tb05356.x
Subject(s) - lipid peroxidation , chemistry , excited state , photochemistry , microsome , membrane , chlorophyll , biochemistry , organic chemistry , antioxidant , enzyme , atomic physics , physics
—Chlorophyll‐ a enhances the photoemission from the microsomeltert‐butyl hydroperoxide system without affecting the rates of O 2 uptake and lipid peroxidation. This photoemission, due to energy transfer from triplet carbonyls to microsome‐bound chlorophyll‐ a , shows that microsomal membranes produce a significant amount of excited triplet carbonyls during lipid peroxidation.