The effect of UVB radiation on the vitamin D2 content of white and cream type button mushrooms (Agaricus bisporus Lange/Imbach) and oyster mushroom (Pleurotus ostreatus (Jacq.) P. Kumm)

Szabó, A. and Gyepes, A. and Nagy, Á. and Abrankó, L. and Győrfi, J. (2012) The effect of UVB radiation on the vitamin D2 content of white and cream type button mushrooms (Agaricus bisporus Lange/Imbach) and oyster mushroom (Pleurotus ostreatus (Jacq.) P. Kumm). Acta Alimentaria, 41 (Supple). pp. 187-196. ISSN 0139-3006

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Abstract

Vitamin D₂ is essential for the human body and mushrooms are proved to be one of the best sources of it. In our experiment biologically active, pre-harvest white and cream type button mushrooms and oyster mushroom were treated with UVB light in order to increase their vitamin D2 level, by transforming their natural ergosterol content into vitamin D2. UVB lamps (operating on 312 nm) and six time periods of irradiation (15 to 90 min) were used. After three consecutive days of treatments the yield were measured and samples were taken for vitamin D2 analysis. Data showed considerable increase in vitamin D2 levels at every time period in each cultivar.

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