Advisor(s)
Abstract(s)
The organic acids and phenolics compositions of nine wild edible mushrooms species ( Suillus bellini, Tricholomopsis rutilans, Hygrophorus agathosmus, Amanita rubescens, Russula cyanoxantha, Boletus
edulis, Tricholoma equestre, Suillus luteus, and Suillus granulatus) were determined by HPLC-UV
and HPLC-DAD, respectively. The antioxidant potential of these species was also assessed by using
the DPPH¥ scavenging assay. The results showed that all of the species presented a profile composed
of at least five organic acids: oxalic, citric, malic, quinic, and fumaric acids. In a general way, the
pair of malic plus quinic acids were the major compounds. Only very small amounts of two phenolic
compounds were found in some of the analyzed species: p-hydroxybenzoic acid (in A. rubescens,
R. cyanoxantha, and T. equestre) and quercetin (in S. luteusand S. granulatus). All of the species
exhibited a concentration-dependent scavenging ability against DPPH¥. T. rutilansrevealed the highest
antioxidant capacity.
Description
Keywords
Wild edible mushrooms Organic acids Phenolic compounds Antioxidant potential
Pedagogical Context
Citation
Ribeiro, Bárbara; Rangel, Joana; Valentão, Patrícia; Baptista, Paula; Seabra, Rosa; Andrade, P.B. (2006). Contents of carboxylic acids and two phenolics and antioxidant activity of dried Portuguese wild edible mushrooms. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. 54:22, p. 8530-8537
Publisher
ACS Publications