Comparison between intense pulsed light and continuous ultraviolet treatment processes for enhancing the vitamin D2 content of shiitake mushroom (Lentinula edodes) powder.

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Citation abstract

Shiitake mushrooms (Lentinula edodes) are a rich source of ergosterol, which can be converted into vitamin D 2, a valuable nutrient for human health. This study evaluated the enhancement of vitamin D 2 in shiitake-mushroom powders using intense pulsed light (IPL). The initial vitamin D 2 content of the sample was 4.18 μg/g. After IPL treatment at various processing times and lamp voltages, the maximum concentration of vitamin D 2 was reached 100.82 μg/g at 1800 V for 30 min-24 times higher than the control. The IPL effectively converted ergosterol into vitamin D 2 in mushroom powders, with the ultraviolet (UV) range being the most influential. At certain fluences, IPL's effect on vitamin D 2 production surpassed continuous UV treatment. These findings suggest that IPL can significantly enhance vitamin D 2 content in mushroom powders, presenting a promising alternative for fortifying functional foods.