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Preparation of Deoiled Soy Lecithin by Ultrafiltration
Author(s) -
Liu Fangbo,
Liu Yuanfa,
Liu Xiaojun,
Shan Liang,
Wang Xingguo
Publication year - 2011
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/s11746-011-1835-7
Subject(s) - lecithin , chromatography , ultrafiltration (renal) , diafiltration , chemistry , ceramic membrane , solvent , hexane , membrane , acetone , micelle , microfiltration , organic chemistry , aqueous solution , biochemistry
Deoiling of soy lecithin through ultrafiltration (UF) using an inorganic ceramic membrane was examined in a favorable solvent medium (hexane). Phospholipid (PL) reverse micelles with an average particle size of 9.8 nm were prepared in a 1:3 soy lecithin/hexane system (m/m) with 9% water added at a temperature of 25 °C. Consequently, an inorganic ceramic membrane with a pore size of 5 nm was selected. UF was employed in continuous diafiltration mode at transmembrane pressure (TMP) of 0.25 MPa, and a final deoiled lecithin product with a high acetone insoluble (AI) content of 96.32% was obtained at a yield of around 84%.