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Influence of UV irradiation on the vitamin D2 and ergosterol concentrations in mushrooms A. bisporus exposed to UV irradiation at different times and distances. The concentrations of vitamin D2 (a) and ergosterol (b) in A. bisporus mushroom irradiated in ethanol suspension by various treatments. The concentrations of vitamin D2 (c) and ergosterol (d) in A. bisporus mushroom irradiated upon dry powder by various treatments.
