title: Differentiation of Agaricus species and other homobasidiomycetes based on volatile production patterns using an electronic nose system.
abstract: Comparisons of the qualitative volatile production patterns between seven species of Agaricus, and between two of Volvariella and Pleurotus and one Coprinus species when grown at 25 degrees C on agar media for 14 d were made. There was good reproducibility between the volatile production patterns of the same species using an electronic nose unit with a 14 conducting sensor polymer array. Principle Component Analysis (PCA) showed that it was possible to discriminate between five of the seven Agaricus species, but that some overlap occurred between the others. Cluster analysis showed that there was also overlap between some species with the tropical collection of A. bitorquis separating out from the others. The volatile production profile of the commercial A. bisporus was close to that of a wild species, A. campestris. A. bisporus could be readily differentiated from other non-Agaricus species. This study demonstrates the potential for using electronic nose systems to rapidly differentiate mycelial cultures of homobasidiomycete mushrooms.
authors.affiliation: Applied Mycology Group, Biotechnology Centre, Cranfield University, Silsoe, Bedford MK45 4DT, UK.
authors.forename: Garima
authors.initials: G
authors.lastname: Keshri
authors.forename: Mike
authors.initials: M
authors.lastname: Challen
authors.forename: Tim
authors.initials: T
authors.lastname: Elliott
authors.forename: Naresh
authors.initials: N
authors.lastname: Magan
mesh_terms: D000364:Agaricus / Q000145:classification* / Q000254:growth & development / Q000378:metabolism; D001487:Basidiomycota / Q000145:classification* / Q000254:growth & development / Q000378:metabolism; D015374:Biosensing Techniques; D004581:Electronics; D016533:Mycological Typing Techniques; D009812:Odorants / Q000032:analysis*; D014835:Volatilization