Premium
Polar lipids of sunflower meal and isolates
Author(s) -
Millan F.,
Vioque E.,
Maza M. P.
Publication year - 1984
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02542239
Subject(s) - chemistry , chromatography , isoelectric point , acetone , phosphatidylethanolamine , phosphatidylcholine , elution , lysophosphatidylethanolamine , food science , phospholipid , biochemistry , membrane , enzyme
Abstract The polar lipids present in the 86% ethanol extract obtained from sunflower meal and isolates were studied. The isolates were obtained in 2 ways: (a) by precipitation at the isoelectric point of the alkaline extract of the meal and further washing of the curd with water, and (b) by precipitation at the isoelectric point of the extract obtained with a 0.25% sodium sulfite solution and washing the curd with water, ethanol and acetone, successively. The polar lipids eluted from a Florisil column with chloroform/acetone (1:1) and with methanol, glycolipids and phospholipids, respectively, were studied both qualitatively and quantitatively. The components found were glycolipids, including sterol glycosides and esterified sterol glycosides, and phospholipids, including phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine and sphingomyelin.