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Macromolecular starch-based emulsifier as well as preparation method and application thereof

A technology of starch-based and emulsifiers, applied in the field of macromolecular starch-based emulsifiers and their preparation, can solve the problems of small molecular weight, difficult emulsification stability and embedding properties of oils, and difficulty in functioning, so as to maintain lipophilicity and good The effect of increasing lipophilicity and water solubility

Active Publication Date: 2021-09-17
佛山市南海华昊华丰淀粉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, the research on this product started after 2000. At present, the products on the market are mainly imported, and the products are mainly low-viscosity products that are enzymatically hydrolyzed or dextrinized. Capsule embedding can replace gum arabic; but these products generally have a problem, that is, the molecular weight is too small to emulsify a higher multiple of oil with a low addition amount, and it is difficult to play a role in a dilute oil-water emulsion system. Long-chain oils are difficult to achieve good emulsification stability and embedding properties

Method used

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preparation example Construction

[0022] The invention provides a kind of preparation method of macromolecule starch-based emulsifier, comprising the following steps:

[0023] The starch water is prepared into a starch aqueous solution with a mass concentration of 30-40%, and the starch aqueous solution is subjected to acid hydrolysis, enzymatic hydrolysis or oxidation treatment to obtain a pretreated starch aqueous solution;

[0024] After adjusting the pH value of the pretreated starch aqueous solution to 6-11, adding octenyl succinic anhydride to carry out an esterification reaction to obtain an esterification reaction feed liquid;

[0025] The esterification reaction feed liquid is washed sequentially, and then spray-dried or drum-dried to obtain the macromolecular starch-based emulsifier.

[0026] In the present invention, the starch water is prepared into a starch aqueous solution with a mass concentration of 30-40%, and the starch aqueous solution is subjected to acid hydrolysis, enzymatic hydrolysis or...

Embodiment 1

[0045] (1) Tapioca starch is prepared into an aqueous solution with a mass concentration of 40% with water, and 2% of the mass of the tapioca starch is added with a 32% hydrochloric acid aqueous solution, and reacted at 45-50° C. for 13 hours.

[0046] (2) After the pH of 3% dilute lye (alkali is sodium hydroxide) is adjusted to 7.5~8.5 with the mass concentration of gained reaction solution, evenly add the octenyl succinic anhydride of cassava starch quality 3.0% (drop rate is 1 g / min), after the octenyl succinic anhydride is added dropwise, the esterification reaction is carried out at a temperature of 35-40° C. for 10 h, and the pH is adjusted to 5.0-6.5 with hydrochloric acid to obtain an esterification reaction feed liquid.

[0047] (3) The esterification reaction feed liquid is washed with water through swirling flow, and the conductivity is controlled to be less than or equal to 500 μs / cm 2 .

[0048] (4) Drying is carried out by means of drum drying, and the steam pre...

Embodiment 2

[0056] (1) Tapioca starch is prepared into an aqueous solution with a mass concentration of 40% with water, and 2.0% of the mass of tapioca starch is added with a 32% hydrochloric acid aqueous solution, and the reaction is carried out at a temperature of 45-50° C. for 13 hours.

[0057] (2) be that 3% dilute lye (alkali is sodium hydroxide) is adjusted to pH 6.5~7.5 with the mass concentration of gained reaction liquid, after the octenyl succinic anhydride of starch quality 3.2% is evenly added dropwise (drop rate is 1 g / min), maintain the temperature at 35-40° C. for esterification reaction for 10 h, adjust the pH to 5.0-6.5 with hydrochloric acid, and obtain the esterification reaction feed liquid.

[0058] (3) The esterification reaction feed liquid is washed with water through swirling flow, and the conductivity is controlled to be less than or equal to 500 μs / cm 2 .

[0059] (4) Drying is carried out by means of drum drying, and the steam pressure of the drum drying is 0...

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Abstract

The invention provides a macromolecular starch-based emulsifier as well as a preparation method and application thereof, and belongs to the technical field of preparation of emulsifiers. The preparation method of the macromolecular starch-based emulsifier comprises the following steps: preparing starch into a starch aqueous solution with the mass concentration of 30-40% by using water; performing acidolysis, enzymolysis or oxidation treatment on the starch aqueous solution to obtain a pretreated starch aqueous solution; adjusting the pH value of the pretreated starch aqueous solution to 6-11, adding octenyl succinic anhydride, and carrying out an esterification reaction to obtain an esterification reaction feed liquid; sequentially washing the esterification reaction feed liquid, and then carrying out spray drying or roller drying to obtain the macromolecular starch-based emulsifier, wherein the mass of the octenyl succinic anhydride is 1.0-15% of the mass of the starch. The macromolecular starch-based emulsifier obtained by the invention has proper consistency and excellent emulsibility.

Description

technical field [0001] The invention relates to the technical field of emulsifier preparation, in particular to a macromolecular starch-based emulsifier and its preparation method and application. Background technique [0002] Starch octenyl succinate is referred to as OSA starch, and its trade name is pure gum. It is a highly safe emulsifying thickener. In 1953, Caldwell and Wurzburg applied for a patent for starch octenyl succinate. The product was released in 1972. It was included in the category of food additives in the United States. Over the years, scientists from the United States, Europe, Japan and other countries have improved the preparation method and application technology of this product. In foreign countries, the product has entered industrialized mass production. American National Starch, Cargill Starch, French Roquette, etc. have a series of products coming out. In China, the research on this product started after 2000. At present, the products on the mark...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/04
CPCC08B31/04
Inventor 张小茹
Owner 佛山市南海华昊华丰淀粉有限公司
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