Method for preparation of purified monoglycerides; and, products
AssigneeCargill, Incorporated
InventorsJeffrey John Kolstad, Richard D. Benson, Scott D. Bloomer, Paris Tsobanakis
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Abstract
A method of preparing a purified monoester composition is provided. The method generally involves a step of adding triglycerides to the crude monoester composition, with a follow up step of extracting into an alcohol/water phase, of the monoester to be purified. The process can be utilized to isolate and purify monoglycerides and propylene glycol monoesters, to advantage. The invention also concerns equipment for conduct of the processes, provision of preferred food additives, and provision of preferred food industry compositions.
Claims29
A method of preparing a purified monoester composition from a crude monoester composition, said method including steps of:
- (a) providing a crude monoester composition including at least one monoester of a fatty acid selected from the group consisting of:
- C.sub.3 -diol monoesters of fatty acids and C.sub.3 -triol monoesters of fatty acids;
- (b) adding, to the crude monoester composition, an effective amount of triglycerides to form a primary extraction, triglyceride-containing, phase;
- and,
- (c) extracting monoester from the primary extraction, triglyceride-containing phase with an extractant, by liquid-liquid extraction.
A method for preparing a purified monoglyceride, said method including a step of:
- (a) extracting monoglycerides, with an extractant, from a mixture of monoglycerides, diglycerides and triglycerides under conditions providing:
- (i) a selectivity of monoglycerides relative to diglycerides of at least 5;
- and,
- (ii) a monoglycerides load, in the extractant, of at least 10 g monoglyceride per 100 g extractant.
A method of purifying monoglycerides comprising a step of:
- (a) washing an alcohol/water phase having monoglycerides and diglycerides therein, with a triglyceride mixture.
A method for preparing a purified monoglyceride from a mixture including monoglycerides, diglycerides, and triglycerides, the method including a step of:
- (a) extracting monoglycerides, with a liquid extractant, from a mixture having a composition, prior to extraction, containing:
- (i) a diglyceride presence of less than a triglyceride presence, by weight;
- (ii) a diglyceride presence of no more than 2 times a monoglyceride presence, by weight;
- and,
- (iii) a triglyceride presence of at least 30%, by weight, based on total weight of monoglycerides, triglycerides and diglycerides in the mixture.
A purified monoglyceride composition comprising:
- (a) at least 85%, by weight, monoglycerides, based on a total weight of monoglycerides, diglycerides and triglycerides;
- and,
- (b) a weight ratio of diglyceride to triglyceride of no greater than 1:1.
Dependencies are inferred from the claim text.