OPTIMIZING VITAMIN D ENRICHMENT IN OYSTER MUSHROOMS BY INVESTIGATING THE EFFECTS OF UV LIGHT TREATMENT AND DRYING METHODS

Objective: This study aims to investigate the effects of UV light treatment and drying processes on the vitamin D2 content of oyster mushrooms (Pleurotus spp.), focusing on the difference in vitamin D concentration between mushrooms grown under UV light and those cultivated without it. Additionally, the study explores how various wavelengths of UV radiation, exposure durations, and post-treatment storage conditions influence the vitamin D2 levels. Method: Oyster mushrooms were grown under controlled conditions, with one group exposed to UV light and the other group grown without UV treatment. The mushrooms were subjected to varying wavelengths of UV radiation for different durations. Following the UV exposure, the mushrooms underwent different drying processes, including sun drying. Vitamin D2 levels were measured in both fresh and dried mushrooms, and the effect of post-treatment storage conditions was assessed. Results: Mushrooms exposed to UV light exhibited significantly higher vitamin D2 content compared to those grown without UV treatment. The concentration of vitamin D2 was influenced by the wavelength and duration of UV exposure, with optimal results observed under specific UV conditions. Sun drying further enhanced the vitamin D2 content, making the mushrooms a richer source of the nutrient. Post-treatment storage conditions had a minimal impact on the retention of vitamin D2. Conclusion: Controlled UV light exposure and appropriate drying methods, particularly sun drying, can effectively enhance the vitamin D2 content in oyster mushrooms. This method provides a practical solution for addressing vitamin D deficiency by increasing the nutritional value of oyster mushrooms, making them a potent dietary source of vitamin D for human consumption.