title: [Biosynthesis of aroma compounds by microorganisms II. Formation of sulphur containing flavour substances from methionine by Saccharomyces cerevisiae (author's transl)].
abstract: Using methionine as single nitrogen source 3-(methylthio)-1-propanol, 3-(methylthio)-propanal, 3-(methylthio)-propylacetate and 2-methylthiophan-3-one were formed in anaerobic model fermentations by Saccharomyces cerebisiae. The sulphur compounds were enriched by liquid-liquid extraction and detected by a selective flame photometric detector (FPD). The identities of the components were confirmed by mass spectrometry. It could be shown by quantitative determiniations that methionine was metabolized with 56--61% to 3-(methylthio)=1-propanol, when it was given to the medium in concentrations from 10 to 100 mg/1. 3-(methylthio)-propylacetuate, 3-(methylthio)-propanal, and 2-methylthiophan-3-one only could be detected in traces.
mesh_terms: D000433:1-Propanol / Q000096:biosynthesis; D008715:Methionine / Q000378:metabolism*; D020005:Propanols; D012441:Saccharomyces cerevisiae / Q000378:metabolism*
chemical_list: D020005:Propanols; D000433:1-Propanol; D008715:Methionine
vernacular_title: Uber die Biosynthese von Aromastoffen durch Mikroorganismen II. Bildung von Schwefelverbindungen aus Methionin durch Saccharomyces cerebisiae