title: [Evaluation of the vitamin D activity of yeasts with altered sterol metabolism].
abstract: The sterol content of Saccharomyces strains with altered ergosterol metabolism was studied by UV-spectrophotometry, thin-layer chromatography and chromatographic mass-spectroscopy. A technique for estimation of D-vitamin activity of the yeast strains is proposed. The irradiated biomass of the strains accumulated ergosta-5,7-dien-3 beta-ol and also cholesta-5,7,24-trien-3 beta-ol and cholesta-5,7,22,24-tetraen-3 beta-ol is characterized by high antirachitic activity.
authors.forename: N P
authors.initials: NP
authors.lastname: Mikhaĭlova
authors.forename: M Iu
authors.initials: MIu
authors.lastname: Valinietse
authors.forename: V K
authors.initials: VK
authors.lastname: Bauman
authors.forename: K A
authors.initials: KA
authors.lastname: V'iunov
mesh_terms: D000818:Animals; D002645:Chickens; D004875:Ergosterol / Q000096:biosynthesis*; D066298:In Vitro Techniques; D007413:Intestinal Mucosa / Q000378:metabolism; D064030:S100 Calcium Binding Protein G / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D013056:Spectrophotometry, Ultraviolet; D014807:Vitamin D / Q000096:biosynthesis*
chemical_list: D064030:S100 Calcium Binding Protein G; D014807:Vitamin D; D004875:Ergosterol
vernacular_title: Otsenka D-vitaminnoĭ aktivnosti shtammov drozhzheĭ s izmenennym metabolizmom sterinov.