Table 4. Vitamin D2 content in irradiated mushrooms from different studies.
| Vitamin D2 | |||
| Author and Year | Mushroom types | Treatment | (µg/g dry weight) |
| Mau et al. 1998 [11] | Agaricus bisporus | UV-C | 7.30 |
| Jasinghe and Perera 2005 [6] | Pleurotus ostreatus | UV-A | 45.10 |
| Jasinghe and Perera 2006 [10] | Pleurotus ostreatus | UV-B | 184.00 |
| Roberts et al. 2008 [13] | Agaricus bisporus | UV-B | 7.98 |
| Ko et al. 2008 [12] | Lentinus edodes | UV-B | 61.90 |
| Teichmann et al. 2007 [18] | Cantharellus tubaeformis | UV-C | 14.03 |
| Koyyalamudi et al. 2009 [3] | Agaricus bisporus | UV-C | 23.13 |
| Kalaras et al. 2011 [20] | Agaricus bisporus | Pulsed UV | 27.00 |
| Koyyalamudi et al. 2011 [21] | Agaricus bisporus | Pulsed UV | 145.10 |
| Simon et al. 2011 [19] | Agaricus bisporus | UV-B | 54.10 |
| Present study | Pleurotus ostreatus (fresh) | UV-B | 239.67 |
| Pleurotus ostreatus (powder) | UV-B | 498.10 |