GC-MS studies of the chemical composition of two inedible Agaricus species (Section Xanthodermatei) in Bulgaria – JBES

Agaricus_augustus_1Maria Lacheva

Agricultural University of Plovdiv, Bulgaria, 12 “Mendeleev” blvd., 4000 Plovdiv, Bulgaria

Key words: Agaricus moelleri, A. phaeolepidotus, Bulgarian mycota, GC-MS studies, section Xanthodermatei, inedible fungi.

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. agaricus-bitorquis-01The 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.

jbes-vol4no4-p287-295Get the original articles in Source: Volume 4, Number 4, April 2014 – JBES

Journal Name: Journal of Biodiversity and Environmental Sciences (JBES)

Published By: International Network for Natural Sciences

Related Post: Estimate non-linear regression models for use in growth analysis of rice (Oryza sativa L.) — JBES

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