Hydrolysis of fats
Patent 4629742 Issued on December 16, 1986. Estimated Expiration Date: 
January 27, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 27, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.InventorsAssigneeApplicationNo. 06/823114 filed on 01/27/1986US Classes:521/55, Treating a cellular solid polymer by adding a material thereto which forms a composition therewith210/500.42, Vinyl210/502.1, Sorptive component containing435/134, Fat; fatty oil; ester-type wax; higher fatty acid (i.e., having at least seven carbon atoms in an unbroken chain bound to a carboxyl group); oxidized oil or fat435/180, Carrier is synthetic polymer521/53, Treating a cellular solid polymer by adding a material thereto which reacts with the polymer or forms a composition therewith, or products of said treating process521/84.1Ingredient is protein, carbohydrate, or natural resinExaminersPrimary: Foelak, MortonAttorney, Agent or FirmInternational ClassesC11C 1/00 (20060101)C12N 11/00 (20060101) C12N 11/08 (20060101) C11C 1/04 (20060101) AbstractA process for the hydrolysis of liquid fats comprising contacting the fats, in the presence of water at hydrolyzing conditions, with lipase immobilized by adsorption from aqueous solution without pretreatment or pretreatment with a polar solvent on a microporous structure comprising a synthetic hydrophobic thermoplastic polymer selected from the group consisting of aliphatic olefinic polymers, oxidation polymers, ionic polymers and blends thereof. Various embodiments of the invention include immobilized lipase itself and an embodiment that employs a vertical packed column of particles of the immobilized lipase through which the liquid fat and water feed streams may be passed cocurrent or countercurrent, one that employs a horizontally disposed diaphragm that includes a layer of fibers of the immobilized lipase and an embodiment that employs a stirred reactor wherein a suspension of particles of the immobilized lipase is maintained in the reaction medium. The process of the invention has exhibited surprisingly high activity in the hydrolysis of fats and the immobilized lipase possesses significant longevity.Other References
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