17-1420

vitamin D synthesis

process whereby 7-dehydrocholesterol, precursor of vitamin D3, produces previtamin D3 by absorbing 240 nm to 315 nm ultraviolet radiation and moreover changes it to vitamin D3 through a thermal isomerization process

NOTE Vitamin D is a generic term for vitamin D2 and/or vitamin D3. The process above in mammalian skin produces vitamin D3. Vitamin D2 is formed in plants in an analogous process when UV radiation activates ergosterol.

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer