Occurrence of δ-Aminovaleric Acid in the Culture Medium of Rumen Ciliate Protozoa

Abstract

An unknown ninhydrin positive spot on the paper chromatogram of the endogenous metabolites of mixed rumen ciliates was isolated by using ‘Dowex’ 50-X8 column and silica gel column and identified as δ-aminovaleric acid by the data of elementary analysis, specific optical rotation, mass spectrum, paper chromatogram and infrared spectrum.