Preparation method and application of natural oil- and starch-esterified starch ester

A technology of natural oil and starch ester, applied in the field of modified starch, can solve the problems of easy local reaction, short processing time, long reaction time, etc., and achieve the effects of good freeze-thaw stability, good gelatinization performance, and improved solubility
CN102030833AInactive Publication Date: 2011-04-27JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2011-04-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method and application of natural oil- and starch-esterified starch ester and belongs to the technical field of modified starch. In the preparation method, starch is taken as a raw material and the natural oil is taken as an esterifying agent; and the starch is subjected to acidolysis and esterification modification by a dry-method process combining microwave and high temperature heating so as to prepare low-degree of substitution natural oil- and starch-esterified starch ester products. Due to the introduction of a hydrophobic organic carbon chain, the starch has oleophylic and hydrophilic amphiphilic properties; therefore, the starch has certain emulsifying property. The product starch ester can be used as a stabilizing agent, an emulsifying agent, a gel, a fat substitute, a microcapsule wall material and the like in the food industry, and can be applied to margarine, salad dressing, bakery products, dairy products, frozen food and the like. The invention has the advantages that: the esterified starch is prepared by the dry-method process combining the microwave and the high temperature heating, the reaction process is simple, the method is easy to implement, the environmental pollution is light, the processing time is short, and the product performance is excellent.
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Description

technical field

[0001] The invention discloses a preparation method and application of a starch ester obtained by esterifying natural oil and starch, and belongs to the technical field of modified starch. Background technique

[0002] The principle of producing starch ester of natural oil and starch esterification by microwave plus dry method is explained as follows: under the action of microwave, natural oil will be hydrolyzed, and the content of free fatty acid will increase. The direct Fischer esterification reaction occurs under the catalytic action of the catalyst. In this reaction, the acid is not only a catalyst for the esterification reaction, but also degrades the starch, resulting in the shortening of the starch molecular chain, the destruction of the branch structure of the amylopectin, the reduction of the reaction space barrier, and the increase of the esterification reaction opportunities between fatty acids and starch.

[0003] In foreign countries, there are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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