Effect of Gamma Irradiation and Different Packagings on the Shelf Life of Edible Mushrooms (Agaricus bisporus)
This study was conducted to evaluate the influence of gamma irradiation doses and packaging materials on the shelf life of edible button mushroom )Agaricus bisporus). To do so, the fresh mushrooms were packed in two different packages: (polyethylene and nanocomposite) and immediately irradiated (0, 1, 2 and 3 kGy) then stored (2–3°C). The effect of these parameters on qualitative characteristics of mushrooms (weight loss, cap diameter, pH, total soluble solids, firmness, and whiteness) during storage (1, 5, 10, 15 and 20 days after irradiation) was evaluated. Our findings showed that the mutual interaction of irradiation dose and packaging material, also irradiation dose and storage time were significant (p < 0.01) in all measured properties except firmness. It can be concluded that using proper doses of irradiation (1-2 kGy) and appropriate packaging material (nanocomposite) could significantly increase the shelf life of edible button mushrooms for 20 days.
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