Classification Term: 2051

Ochratoxins and related substances (ontology term: CHEMONTID:0001787)

A group of chemically related metabolites containing a 3,4-dihydro-3-methylisocoumarin moiety linked through a carboxyl group to L-beta-phenylalanine by a secondary amine bond." [DOI:10.1021/ba-1976-0149.ch005]

found 2 associated metabolites at class metabolite taxonomy ontology rank level.

Ancestor: Phenylpropanoids and polyketides

Child Taxonomies: There is no child term of current ontology term.

Ochratoxin A

(2S)-2-{[(3R)-5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-carbonyl]amino}-3-phenylpropanoic acid

C20H18ClNO6 (403.0823)


Ochratoxin A is found in barley. Mycotoxin. Ochratoxin A is produced by Aspergillus melleus, Aspergillus sulphureus and Penicillium viridicatum.Potential contaminant of foodstuffs, especially cereals. Ochratoxin A is found in stored grain products in UK (1997).Ochratoxin A, a toxin produced by Aspergillus ochraceus and Penicillium verrucosum, is one of the most abundant food-contaminating mycotoxins in the world. Human exposure occurs mainly through consumption of improperly stored food products, particularly contaminated grain and pork products, as well as coffee, wine grapes and dried grapes. The toxin has been found in the tissues and organs of animals, including human blood and breast milk. Ochratoxin A toxicity has large species- and sex-specific differences Mycotoxin. Production by Aspergillus melleus, Aspergillus sulphureus and Penicillium viridicatum.Potential contaminant of foodstuffs, especially cereals. Found in stored grain products in UK (1997) D002317 - Cardiovascular Agents > D002121 - Calcium Channel Blockers D009676 - Noxae > D011042 - Poisons > D009793 - Ochratoxins D009676 - Noxae > D011042 - Poisons > D009183 - Mycotoxins D000077264 - Calcium-Regulating Hormones and Agents D009676 - Noxae > D002273 - Carcinogens D049990 - Membrane Transport Modulators

   

Ochratoxin B

2-{[hydroxy(8-hydroxy-3-methyl-1-oxo-3,4-dihydro-1H-2-benzopyran-7-yl)methylidene]amino}-3-phenylpropanoic acid

C20H19NO6 (369.1212)


Ochratoxin B is a metabolite of Aspergillus ochraceu