US 12,473,311 B2
Low iron hydrous phospholipid and method for separating low-iron hydrous phospholipids from soybean oil sediments
Ziqian Xu, Inner Mongolia Autonomous Region (CN)
Assigned to INNER MONGOLIA BOBEYMAN TECHNOLOGY CO. LTD, Hohhot (CN); and SHANGHAI TAIWEI PHARMACEUTICAL CORP. LTD, Shanghai (CN)
Filed by INNER MONGOLIA BOBEYMAN TECHNOLOGY CO. LTD, Inner Mongolia Autonomous (CN); and SHANGHAI TAIWEI PHARMACEUTICAL CORP. LTD, Shanghai (CN)
Filed on Jun. 2, 2022, as Appl. No. 17/830,378.
Application 17/830,378 is a continuation of application No. PCT/CN2020/135887, filed on Dec. 11, 2020.
Claims priority of application No. 202010454426.X (CN), filed on May 26, 2020; and application No. 202010455240.6 (CN), filed on May 26, 2020.
Prior Publication US 2022/0289770 A1, Sep. 15, 2022
Int. Cl. C07F 9/10 (2006.01); B01D 11/04 (2006.01)
CPC C07F 9/103 (2013.01) [B01D 11/0492 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A preparation method of a hydrous phospholipid composition, comprising the following steps:
(1) adding soybean oil sediments into water and soaking to obtain saturated water-absorbing oil sediments;
(2) subjecting the saturated water-absorbing oil sediments to a centrifugal sedimentation to obtain fluid; and
(3) standing and layering the fluid for stratification to obtain a phospholipid layer containing the hydrous phospholipid composition and an oil layer;
wherein the hydrous phospholipid composition comprises:
(a) phospholipids;
(b) oil; and
(c) water in an amount of 70-80 g/100 g;
wherein on a dry basis, acetone-insoluble matter constitutes 92.5-95.5 g/100 g; and
wherein the iron content in the acetone-insoluble matter is no more than 18 mg/kg.