Effects of gamma irradiation on physical parameters of Lactarius deliciosus wild edible mushroom

Studies evaluating the effects of ionizing radiation in mushrooms are mostly available in cultivated species, being scarce reports on wild species, considered add-value foods. In the present work, the effects of gamma radiation dose (0, 0.5 and 1 kGy) and storage time (0 to 8 days at 5 ºC) on the ph...

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Detalhes bibliográficos
Autor principal: Fernandes, Ângela (author)
Outros Autores: Antonio, Amilcar L. (author), Barreira, João C.M. (author), Oliveira, Beatriz (author), Martins, Anabela (author), Ferreira, Isabel C.F.R. (author)
Formato: article
Idioma:eng
Publicado em: 2012
Assuntos:
Texto completo:http://hdl.handle.net/10198/7716
País:Portugal
Oai:oai:bibliotecadigital.ipb.pt:10198/7716
Descrição
Resumo:Studies evaluating the effects of ionizing radiation in mushrooms are mostly available in cultivated species, being scarce reports on wild species, considered add-value foods. In the present work, the effects of gamma radiation dose (0, 0.5 and 1 kGy) and storage time (0 to 8 days at 5 ºC) on the physical parameters (colour, cap diameter and weight) of the wild edible mushroom Lactarius deliciosus were evaluated. It was observed a slight decrease in redness (a) with irradiation dose and a slight decrease in the cap diameter with storage time. Regarding the weight loss profiles along the 8 days of storage, the results were very similar for irradiated and non-irradiated samples. Overall, this study demonstrated that up to 1 kGy, gamma irradiation and cold storage did not affect significantly the assayed physical properties.