Effects of Postharvest Pulsed UV Light Treatment of White Button Mushrooms (Agaricus bisporus) on Vitamin D2 Content and Quality Attributes
2012
Kalaras, Michael D. | Beelman, R. B. (Robert B.) | Elias, Ryan J.
Pulsed UV light (PUV) was investigated as a means to rapidly increase vitamin D₂ (D₂) content in fresh button mushrooms (Agaricus bisporus). D₂ was found to increase to over 100% RDA/serving following 3 pulses (1 s). Following 12 pulses, D₂ began to approach a maximum concentration of 27 μg/g DW. The D₂ produced with 3 pulses decreased from 11.9 to 9.05 μg/g DW after 3 days of storage; however, D₂ levels remained nearly constant after this point throughout an 11-day shelf life study. PUV treated sliced mushrooms produced significantly more D₂ than whole mushrooms, and it was also observed that brown buttons generated significantly less D₂ than white buttons. Several quality attributes were assessed, and no significant differences between control and PUV treated mushrooms were observed. These findings suggest that PUV treatment is a viable method for rapidly increasing the D₂ content of fresh mushrooms without adversely affecting quality parameters.
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