Biotransformation Of ß-Damascone By Botrytis Cinerea

Elisabeth Schwab, Irmgard Benda, Peter Schreier
1991 Zeitschrift für Naturforschung C - A Journal of Biosciences  
Biotransformation of β-damascone (1) was studied with four strains of Botrytis cinerea using grape must (A) and a mixture of A with synthetic medium (B). Whereas in A 4-hydroxy-β-damascone (2), 3-hydroxy-β-damascone (3), and 2-hydroxy-β-damascone (4) were found as volatile bioconversion products, in B additionally 4-oxo-β-damascone (5) was detected. Furthermore, 9-hydroxy-8,9-dihydro-β-damascone (6) was identified as chemically formed by-product. Quantitatively, the results were strongly
more » ... ere strongly dependent on the strain and medium used. Incubation of 1 with two B. c. strains in medium Bled to an almost selective formation (93 and 95%) of 2 and the highest yield of products (30 and 66%). The bioconversion products were identified by capillary gas chromatography (H RG C) and coupled HRGC techniques, i.e. - mass spectrometry (HRGC-MS) and - Fourier transform infrared spectroscopy (HRGC-FTIR) after extractive sample preparation
doi:10.1515/znc-1991-5-610 fatcat:axhm4jke3bcdhokmftzstkhdoa