Metabolites of a Diatom, Synedra rumpens KUTZ. isolated from Water in Lake Biwa. Identification of Odorous Compounds, n-Hexanal and n-Heptanal, and Analysis of Fatty Acids

Abstract

A diatom, Synedra rumpens KUTZ., was isolated from the water in Lake Biwa which is the source of the water supplies of Kyoto City. Two odorous metabolites produced by this alga were proved to be n-hexanal and n-heptanal by means of gas chromatography (GC) and GC-mass spectrum. Three of four fatty acids obtained from Synedra rumpens KUTZ. were also identified as isovaleric, myristic, and palmitic acids by GC.