Process for manufacturing vegetable lysolecithins
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United States of America Patent
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Sep 21, 1999
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app pub date -
Apr 8, 1998
filing date -
Apr 8, 1997
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Abstract
In accordance with the present invention, there is provided a process for manufacturing vegetable lysolecithins which comprises allowing a hydrolysis enzyme consisting of phospholipase A.sub.1 or A.sub.2 to act on a hydrated lecithin used as a starting material, then adding for stirring to the resultant lysolecithin solution acetone in a proportion on a volume basis of either 1 to 4, or 5 or more, against the water contained in said resultant lysolecithin solution to thereby either float or precipitate the lysolecithin phase, then separating out said lysolecithin phase, followed by repetition of the acetone extraction procedure to separate for removal free fatty acids by-produced in the said lysolecithin production reaction as well as oil-soluble impurities originated from the starting material. The process of the present invention can produce high-quality vegetable lysolecithins with reduced discoloration and improved flavor in increased yields.
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