How gamma-rays and electron-beam irradiation would affect the antimicrobial activity of differently processed wild mushroom extracts?

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. Methods and 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. Significance and Impact of the Study: This study provides important results in antimicrobial activity of extracts prepared from irradiated mushroom species.

URI

http://hdl.handle.net/10198/12162

Citação

Alves, Maria José; Fernandes, Ângela; Barreira, João C.M.; Lourenço, Inês; Fernandes, Dina; Moura, Ana; Ribeiro, Ana Raquel; Salgado, Julie; Antonio, Amilcar L.;Ferreira, Isabel C.F.R. (2015). How gamma-rays and electron-beam irradiation would affect the antimicrobial activity of differently processed wild mushroom extracts? Journal of Applied Microbiology. ISSN 1364-5072. 118:3, p. 592-598