Isolation and identification of phenolic substances from the fungus Penicillium spinulosum.
Penicillium spinulosum grown in a Czapek-Dox medium containing glucose produces two phenolic substances: 4-methyl orcinol (beta-orcinol) and 3-methyl orsellinic acid (beta-orcinolcarboxylic acid). Their isolation and identification are described. They are considered to be precursors of quinoids occuring in aged media and responsible for their red-violet colours. Preliminary results indicate that one of the quinoid compounds may be a diphenoquinone.
D001565:Benzoates / Q000032:analysis; D002854:Chromatography, Paper; D010407:Penicillium / Q000032:analysis*; D010636:Phenols / Q000032:analysis*; D010860:Pigments, Biological / Q000302:isolation & purification; D011809:Quinones / Q000096:biosynthesis; D012118:Resorcinols / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet
D001565:Benzoates; D010636:Phenols; D010860:Pigments, Biological; D011809:Quinones; D012118:Resorcinols