英语词汇“dehydrocholesterol”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

dehydrocholesterol

/diːˌhʌɪdrə(ʊ)kəˈlɛstərɒl

noun [mass noun] Biochemistry

A derivative of cholesterol present in the skin. It can be converted to cholecalciferol (vitamin D₃) by the action of ultraviolet radiation.

In the skin 7 - dehydrocholesterol is converted to cholecalciferol following UV irradiation....

The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7 - dehydrocholesterol to cholecalciferol.
Other types of UV dosimeters are based on the photodamage of DNA in spores, bacteria or bacteriophages or the conversion of 7 - dehydrocholesterol to previtamin D.

1930s: from dehydro- 'that has lost hydrogen' + cholesterol.

单词	dehydrocholesterol
释义	dehydrocholesterol /diːˌhʌɪdrə(ʊ)kəˈlɛstərɒl / noun [mass noun] Biochemistry A derivative of cholesterol present in the skin. It can be converted to cholecalciferol (vitamin D₃) by the action of ultraviolet radiation. Chemical formula: C₂₇H₄₄O. In the skin 7 - dehydrocholesterol is converted to cholecalciferol following UV irradiation.... The most important source of vitamin D for all individuals is the sunlight-driven conversion in skin of 7 - dehydrocholesterol to cholecalciferol. Other types of UV dosimeters are based on the photodamage of DNA in spores, bacteria or bacteriophages or the conversion of 7 - dehydrocholesterol to previtamin D. Origin 1930s: from dehydro- 'that has lost hydrogen' + cholesterol.
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