title: [Investigations on the influence of insecticides on autoxidation processes. XI. Formation of secondary metabolites from octadecenic acid methyl ester in the presence of water and chlorinated hydrocarbon insecticides (author's transl)].
abstract: For determining the influence of chlorinated hydrocarbon insecticides on the formation of secondary metabolites from peroxidized 9-octadecenic acid methylester by autoxidation within 72 hrs, substances reacting with phosphomolybdanic acid have been separated by TLC. Furthermore the increase of metabolites containing carbonyl groups and the variation of the ratio of polar to unpolar OH-groups in the metabolites have been determined by IR-spectrophotometry. All results proved, that the trans-9-octedecenic acid ester is autoxidized more rapidly than the cis-ester. Moreover the insecticides principally favour the formation of secondary metabolites from the lipidperoxide. This effect increases in the range DDT, DDE, heptachlor, heptachlorepoxide. If the increase of metabolites with carbonyl groups is chosen as a measure for the prooxidative effect, the effect appears equally high for the cis- and the trans-ester. But the hydroxyl index is changed depending on the kind of the insecticide added and the steric configuration of the lipid.
mesh_terms: D002855:Chromatography, Thin Layer; D003634:DDT; D003633:Dichlorodiphenyl Dichloroethylene; D004952:Esters; D005227:Fatty Acids; D006533:Heptachlor; D006534:Heptachlor Epoxide; D007306:Insecticides; D010084:Oxidation-Reduction; D013055:Spectrophotometry, Infrared; D014867:Water
chemical_list: D004952:Esters; D005227:Fatty Acids; D007306:Insecticides; D014867:Water; D006534:Heptachlor Epoxide; D003633:Dichlorodiphenyl Dichloroethylene; D006533:Heptachlor; D003634:DDT
vernacular_title: Untersuchungen und Betrachtungen zum Insecticideinfluss auf Autoxydationsprozesse. XI. Bildung sekundärer Umwandlungsprodukte aus Octadecensäuremethylester in wässrigem Milieu in Gegenwart insecticider Chlorkohlenwasserstoffe