The structures of triacylglycerols from sclerotia of the rye ergot Claviceps purpurea (Fries) Tul.
The triacylglycerol fraction of lipids extracted from sclerotia of the rye ergot Claviceps purpurea strain VKM F-2642D has been shown to comprise about 60% of the total lipids and to consist of at least seven constituents, namely, [R]-[R]-[R] (1.6% of the total fraction), [R-Ric]-[R]-[R] (27%), [R-Ric]-[R-Ric]-[R] (65%), [R-Ric]-[R-Ric]-[R-Ric] (4.8%), [R-Ric-Ric]-[R-Ric]-[R-Ric] (1.1%), [R-Ric-Ric]-[R-Ric-Ric]-[R-Ric] (0.3%), and [R-Ric-Ric-Ric]-[R-Ric-Ric]-[R-Ric-Ric] (0.2%) (acyl residues at the 1(3), 2 and 3(1) positions of the glycerol moiety are indicated; R = nonhydroxylated fatty acid (C16, C18) residue, Ric = ricinoleyl residue). Non-hydroxylated fatty acyls (R) are n-16:0 (25-50% of the total), 16:1 omega 7 (10-15%), n-18:0 (2-5%), 18:1 omega 9 (20-30%), and 18:2 omega 6,9 (10-35%). The second and the third of the listed triacylglycerols are composed dominantly (by 86% or more) of 1,2-di-[R]-3-[R-Ric]-sn-glycerol and 1-[R]-2,3-di-[R-Ric]-sn-glycerol, respectively.
Batrakov
S G
SG
Applied Ecology Research Laboratory, Ministry of Health and Medical Production, Moscow, Russia.
Tolkachev
O N
ON
D000818:Animals; D002845:Chromatography; D002967:Claviceps / Q000737:chemistry*; D004876:Ergot Alkaloids / Q000032:analysis / Q000737:chemistry; D007814:Larva; D009682:Magnetic Resonance Spectroscopy; D013055:Spectrophotometry, Infrared; D013237:Stereoisomerism; D014280:Triglycerides / Q000032:analysis / Q000737:chemistry* / Q000302:isolation & purification
D004876:Ergot Alkaloids; D014280:Triglycerides