title: Quantitation of nine organic acids in wild mushrooms.
abstract: The organic acids composition of six wild edible mushroom species (Amanita caesarea, Boletus edulis, Gyroporus castaneus, Lactarius deliciosus, Suillus collinitus, and Xerocomus chrysenteron) was determined by an HPLC-UV detector method. The results showed that all of the samples presented a profile composed of at least five organic acids: citric, ketoglutaric, malic, succinic, and fumaric acids. Several samples also contained oxalic, ascorbic, quinic, and shikimic acids. In a general way, the quantitation of the identified compounds indicated that malic acid, followed by the pair citric plus ketoglutaric acids, were the main compounds in the analyzed species, with the exception of A. caesarea, in which malic and ascorbic acids were the most abundant compounds. The relative amounts and the presence/absence of each identified compound may be useful for the differentiation of the species.
authors.affiliation: REQUIMTE/Serviço de Farmacognosia, Faculdade de Farmácia Universidade do Porto, R. Aníbal Cunha 164, 4050-047 Porto, Portugal.
authors.forename: Patrícia
authors.initials: P
authors.lastname: Valentão
authors.forename: Graciliana
authors.initials: G
authors.lastname: Lopes
authors.forename: Miguel
authors.initials: M
authors.lastname: Valente
authors.forename: Paula
authors.initials: P
authors.lastname: Barbosa
authors.forename: Paula B
authors.initials: PB
authors.lastname: Andrade
authors.forename: Branca M
authors.initials: BM
authors.lastname: Silva
authors.forename: Paula
authors.initials: P
authors.lastname: Baptista
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Seabra
mesh_terms: D000363:Agaricales / Q000737:chemistry; D000545:Amanita / Q000737:chemistry; D001487:Basidiomycota / Q000737:chemistry*; D002264:Carboxylic Acids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D013045:Species Specificity
chemical_list: D002264:Carboxylic Acids