UV light increases vitamin D in mushrooms
Sunlight is an excellent way for a person to get their vitamin D--the ultraviolet light in the sun’s rays converts cholesterol in the skin to vitamin D. Now scientists say they can use this technique to raise the level of vitamin D in mushrooms.
Researchers from Penn State University managed to change a mushroom from having zero vitamin D levels to 100 percent vitamin D levels in less than a second. By exposing a mushroom’s surface to rapid pulses of UV light, a chemical process is triggered that converts a mushroom’s version of cholesterol into vitamin D.
The mushrooms maintained their levels of vitamin D for a week after exposure in the refrigerator. Negative impacts from the treatment have not been found.