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Production of sugar esters from vinyl fatty acid esters

A vinyl ester and sugar ester technology, which is applied in the direction of esterification of saccharides, sugar derivatives, sugar derivatives, etc., can solve the problems of low yield and difficult removal of sugar and alkali metals

Active Publication Date: 2009-02-11
COMPASS FOODS PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, product yields are low and damaged sugars and alkali metals are difficult to remove

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The following description is provided to enable all persons skilled in the art to utilize the invention, followed by an enumeration of the best mode contemplated by the inventors for carrying out the invention. However, since the general principles of the invention have been specifically defined herein to provide a process for the manufacture of sucrose esters in which fatty acids are provided in the form of vinyl esters, variations of this process will be apparent to those skilled in the art. It is obvious.

[0017] Manufacture of sucrose monostearate from fatty acid vinyl ester

[0018] Because sucrose monoesters are considered more valuable than other esters, the inventive reactions shown here have been optimized for highest monoester content rather than highest reaction yield.

[0019] Sucrose was first dissolved in DMSO at 60°C to obtain a concentration of approximately 400 mM. To limit the coloration of the reaction mixture, potassium carbonate was added to the...

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PUM

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Abstract

A sugar ester product is manufactured from sugar and vinyl fatty acid. Sugar is first dissolved in dimethyl sulfoxide with a metal carbonate catalyst. A vinyl fatty acid ester is added to the sugar mixture; a sugar ester product and acetaldehyde are formed. Vacuum can be used to remove acetaldehyde to drive the reaction towards completion. Depending on the sugar to vinyl fatty acid ester ratio, one can obtain a reaction yield greater than 90% with a monoester content of 90%. DMSO is then recovered by vacuum distillation. The crude product is dissolved in brine; sucrose stearate along with vinyl stearate and traces of sucrose are extracted by adding isobutanol. The isobutanol phase is separated from the aqueous phase and concentrated. Spray drying steps are carried out to remove residual solvents and vinyl stearate. The product is a white powder that meets FDA specifications for sucrose esters.

Description

[0001] References to earlier applications [0002] This application is a non-provisional application based on, and claims priority from, US Provisional Application No. 60 / 757097 filed January 6, 2006. [0003] US government support [0004] This invention was supported by NA. technical field [0005] The present invention relates to a process for producing high-efficiency, high-purity sugar esters. Background technique [0006] Beginning around the end of World War II, "natural" surfactants such as soaps (alkali metal salts of fatty acids) were gradually replaced by petroleum-derived "detergents". However, most of these materials are not suitable for food and medicine. In the study of surfactants suitable for food and pharmaceuticals, sugar detergents or sugar surfactants—that is, fatty acid esters of sugars and derivatives of sugars—were found. Because of the relatively large amounts of natural sugars and possibly various fatty acids present, a very large number of diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H1/00C07H13/06
CPCC07H13/06C07H1/00
Inventor 王美茵
Owner COMPASS FOODS PTE LTD