ergosterol

views updated Jun 11 2018

ergosterol A sterol isolated from yeast; when treated with ultra‐violet light, it is converted to ercalciol (ergocalciferol, vitamin D2). This is the main industrial source of vitamin D.

ergosterol

views updated Jun 08 2018

ergosterol (er-gos-ter-ol) n. a plant sterol that, when irradiated with ultraviolet light, is converted to ergocalciferol (vitamin D2). See vitamin D.

ergosterol

views updated Jun 27 2018

ergosterol A sterol occurring in fungi, bacteria, algae, and plants. It is converted into vitamin D2 by the action of ultraviolet light.