Industrial Production
Vitamin D3 (cholecalciferol) is produced industrially by exposing 7-dehydrocholesterol to UVB light, followed by purification. The 7-dehydrocholesterol is a natural substance in wool grease (lanolin) from sheep or other woolly animals. Vitamin D2 (ergocalciferol) is produced in a similar way using ergosterol from yeast or mushrooms as a starting material.
Read more about this topic: Vitamin D
Famous quotes containing the words industrial and/or production:
“As to a thorough eradication of prostitution, nothing can accomplish that save a complete transvaluation of all accepted values—especially the moral ones—coupled with the abolition of industrial slavery.”
—Emma Goldman (1869–1940)
“Perestroika basically is creating material incentives for the individual. Some of the comrades deny that, but I can’t see it any other way. In that sense human nature kinda goes backwards. It’s a step backwards. You have to realize the people weren’t quite ready for a socialist production system.”
—Gus Hall (b. 1910)