title: Substrate effect on 2,3-butylene glycol production by Rhizopus nigricans and Penicillium expansum.
abstract: Rhizopus nigricans and Penicillium expansum produced 2,3-butylene glycol which accumulated in natural and artificial media with time. Mycelial mats of P. expansum decreased the quantity of a diacetyl substrate and converted part of this substrate into acetylmethylcarbinol (AMC) and 2,3-butylene glycol. Mycelial mats of P. expansum also decreased AMC substrate with the formation of 2,3-butylene glycol. 2,3-Butylene glycol decreased slightly during incubation with the fungal mat. The formation of AMC was suppressed significantly by cysteine and ascorbic acid.
mesh_terms: D000433:1-Propanol / Q000096:biosynthesis / Q000378:metabolism; D001205:Ascorbic Acid / Q000494:pharmacology; D002074:Butanones / Q000096:biosynthesis / Q000378:metabolism; D003470:Culture Media; D003545:Cysteine / Q000494:pharmacology; D005285:Fermentation; D005516:Food Microbiology; D005638:Fruit; D006018:Glycols / Q000096:biosynthesis* / Q000378:metabolism; D007659:Ketones / Q000378:metabolism; D010407:Penicillium / Q000378:metabolism*; D012233:Rhizopus / Q000378:metabolism*
chemical_list: D002074:Butanones; D003470:Culture Media; D006018:Glycols; D007659:Ketones; D000433:1-Propanol; D003545:Cysteine; D001205:Ascorbic Acid