Overview

This book describes the photooxidation and autoxidation of the lipid components of phototrophic organisms. These two processes, which act intensively during the senescence of phototrophs, have been relatively neglected in the relevant literature. The text details the mechanisms involved in type-II photosensitized oxidation and free radical oxidation (autoxidation) of the main unsaturated lipids, with a close focus on the specificity of the oxidation products formed and their potential to serve as tracers of these processes. It then discusses the effects of temperature and solar irradiance on the efficiency of type-II photooxidation processes, and looks at the possibility of photooxidative damage transferring into non-phototrophic material.The book ends with a detailed description of potential interactions between biotic and abiotic degradation processes, which, although very complex, must absolutely be factored in when studying the fate of organic matter in the environment.

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9781527573048

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Jean-François Rontani studied Chemistry at the Centrale Marseilles Graduate School of Engineering, France, and defended his PhD in 1986 at Aix-Marseille III University. He then joined the Centre national de la recherche scientifique (CNRS), and began to specialize his research on abiotic degradation processes of organic matter. He is now a CNRS Senior Scientist, and works at the Mediterranean Institute of Oceanography., France. He has amassed 38 years of research experience in organic geochemistry, gaining unparalleled expertise in the use of lipid tracers and mass spectrometric techniques (GC-MS, GC-MS/MS and GC-QTOF) to monitor biotic and abiotic degradation of organic matter in the environment. He has published 174 papers and nine book chapters.

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