Identification of geosmin as a volatile metabolite of Penicillium expansum.
Cultures of Penicillium expansum produce a musty, earthy odor. Geosmin [1,10-trans-dimethyl-trans(9)-decalol] was identified by gas chromatography-mass spectrometry from headspace samples of P. expansum cultures. Olfactory comparison of P. expansum cultures with a geosmin standard indicated geosmin is the primary component of the odor associated with P. expansum.
Mattheis
J P
JP
Tree Fruit Research Laboratory, U.S. Department of Agriculture, Wenatchee, Washington 98801.
Roberts
R G
RG
D009284:Naphthols / Q000302:isolation & purification / Q000378:metabolism*; D009812:Odorants / Q000032:analysis*; D010407:Penicillium / Q000378:metabolism*; D014835:Volatilization
D009284:Naphthols; C001278:geosmin