GC-MS studies of the chemical composition of two inedible Agaricus species (Section Xanthodermatei) in Bulgaria
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2014, Vol 4, Issue 4
Abstract
Тhe study is first report on the chemical composition of two inedible Agaricus species, namelly Agaricus moelleri Wasser and A. phaeolepidotus (F.H. Møller) F.H. Møller. Тhis GC-MS studies on the volatile fractions and butanol extracts resulted in the identification of 42 and 40 compounds for A. moelleri and A. phaeolepidotus, respectively, including amino acids, fatty acids and their esters and sugar alcohols. The most abundant constituent in the volatiles and butanol were phenol and urea respectively, as well as identified the presence of ergosterol and two Δ7-sterols. The crystalline compound 5α,8α-еpidioxi-24(ξ)-methylcholesta-6,22-diene-3β-ol was isolated for the first time from A. phaeolepidotus. The results obtained contribute to the knowledge of the chemical composition of species belonging to the genus Agaricus, and provide some explanation for the reported mild toxicity of A. moelleri and A. phaeolepidotus can be explained by a high phenol content, similar to that found in other Xanthodermatei species. The species are described and illustrated on the basis of Bulgarian specimens.
Authors and Affiliations
Maria Lacheva
Keywords
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