Methyl linoleate dimer and methyl 8-phenyloctanoate in the copper-catalyzed decomposition products of methyl linoleate hydroperoxides.
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منابع مشابه
Characterization by NMR of Ozonized Methyl Linoleate
No presente estudo o linoleato de metila ozonizado com índice de peróxidos de 1.800 mmol-equiv. kg foi caracterizado quimicamente. Os efeitos do ozônio sobre o linoleato de metila produz hidroperóxidos, ozonideos e aldeídos, os quais foram identificados por técnicas de ressonância magnética nuclear de H e C, monoe bidimensional. O linoleato de metila padrão e o linoleato de metila ozonizado mos...
متن کاملMutagenicity tests of lipid oxidation products in Salmonella typhimurium: monohydroperoxides and secondary oxidation products of methyl linoleate and methyl linolenate.
Nine hydroperoxy and hydroperoxy-epidioxy oxidation products derived from either autoxidation (AO) or photosensitized oxidation (PO) of methyl linoleate (MLo) or methyl linolenate (MLn) were tested for mutagenic activity by the Salmonella typhimurium his+ reversion assay using strains TA100, TA98, TA102, TA97 and TA1537. All nine oxidation products, monohydroperoxides from AO-MLn (I) or from PO...
متن کاملDepression of phagocytic activity of human polymorphonuclear leukocytes by methyl linoleate hydroperoxides.
Methyl linoleate hydroperoxides (MLHPO), a model for lipid hydroperoxides, decreased fungicidal activity of human polymorphonuclear leukocytes (PMN) for fungi of Candida albicans. When PMN was cultured with MLHPO, phagocytosis to fungi was depressed. Degree of the depression was dependent on the concentration of MLHPO and the treatment time with MLHPO. These findings indicate that phagocytic ac...
متن کاملMetabolism of monoepoxides of methyl linoleate: bioactivation and detoxification.
Leukotoxin (ltx) and isoleukotoxin (iltx) methyl esters, are metabolites of methyl linoleic acid, an essential fatty acid. They have been associated with acute respiratory distress syndrome. The observed toxicity of ltx and iltx is, in fact, due to the metabolism of the epoxides to their corresponding diols by soluble epoxide hydrolase (sEH). Herein, we demonstrate that ltx/iltx are toxic in a ...
متن کاملNew Geometric Isomers of Oxooctadecadienoate in Copper-catalyzed Decomposition Products of Linoleate Hydroperoxide.
Methyl linoleate hydroperoxide produced by autoxidation was refluxed with 10(-4) M Cu-naphthenate in benzene. Two new geometrical isomers of oxooctadecadienoate (compounds I and II) were found in addition to the four known isomers. They were isolated by a Sephadex LH-20 column chromatography with chloroform-hexane (2:1) and purified by HPLC on Nucleosil ®100-5 and Zorbax ODS columns. UV, IR, MS...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1984
ISSN: 0002-1369,1881-1280
DOI: 10.1271/bbb1961.48.2567