Fernandes, ÂngelaAntonio, Amilcar L.Barreira, João C.M.Oliveira, BeatrizMartins, AnabelaFerreira, Isabel C.F.R.2012-11-052012-11-052012Fernandes, Ângela; Antonio, Amilcar L.; Barreira, João C.M.; Oliveira, M. Beatriz P.P.; Martins, Anabela; Ferreira, Isabel C.F.R. (2012). Effects of gamma irradiation on physical parameters of Lactarius deliciosus wild edible mushroom. Postharvest Biology and Technology. ISSN 0925-5214. 74, p. 79–840925-5214http://hdl.handle.net/10198/7716Studies 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.engGamma irradiationWild mushroomsLactarius deliciosusColourCap diameterWeightjournal article10.1016/j.postharvbio.2012.06.019