title: How gamma-rays and electron-beam irradiation would affect the antimicrobial activity of differently processed wild mushroom extracts?
abstract: OBJECTIVE
  The effects of irradiation (gamma-rays and electron-beams), up to 10 kGy, in the antimicrobial activity of mushroom species (Boletus edulis, Hydnum repandum, Macrolepiota procera and Russula delica) differently processed (fresh, dried, freeze) were evaluated.
  
  
  RESULTS
  Clinical isolates with different resistance profiles from hospitalized patients in Local Health Unit of Mirandela, Northeast of Portugal, were used as target micro-organisms. The mushrooms antimicrobial activity did not suffer significant changes that might compromise applying irradiation as a possible mushroom conservation technology.
  
  
  CONCLUSIONS
  Two kGy dose (independently of using gamma-rays or electron-beams) seemed to be the most suitable choice to irradiate mushrooms.
  
  
  CONCLUSIONS
  This study provides important results in antimicrobial activity of extracts prepared from irradiated mushroom species.
authors.affiliation: Escola Superior de Saúde, Instituto Politécnico de Bragança, Bragança, Portugal; Unidade Local de Saúde do Nordeste - Unidade de Mirandela, Mirandela, Portugal; Centro de Investigação de Montanha (CIMO), ESA, Instituto Politécnico de Bragança, Bragança, Portugal.
authors.forename: M J
authors.initials: MJ
authors.lastname: Alves
authors.forename: Â
authors.initials: Â
authors.lastname: Fernandes
authors.forename: J C M
authors.initials: JC
authors.lastname: Barreira
authors.forename: I
authors.initials: I
authors.lastname: Lourenço
authors.forename: D
authors.initials: D
authors.lastname: Fernandes
authors.forename: A
authors.initials: A
authors.lastname: Moura
authors.forename: A R
authors.initials: AR
authors.lastname: Ribeiro
authors.forename: J
authors.initials: J
authors.lastname: Salgado
authors.forename: A
authors.initials: A
authors.lastname: Antonio
authors.forename: I C F R
authors.initials: IC
authors.lastname: Ferreira
mesh_terms: D000363:Agaricales / Q000528:radiation effects*; D000900:Anti-Bacterial Agents / Q000494:pharmacology / Q000528:radiation effects*; D001419:Bacteria / Q000187:drug effects / Q000302:isolation & purification; D002457:Cell Extracts / Q000494:pharmacology; D004583:Electrons; D005720:Gamma Rays; D006801:Humans
chemical_list: D000900:Anti-Bacterial Agents; D002457:Cell Extracts
keywords: electron-beam irradiation; gamma-irradiation; irradiation technology; multiresistant bacteria; wild mushroom extracts