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A kind of method and application thereof for preparing starch octenyl succinate

A technology of octenyl succinic acid and octenyl succinic anhydride, applied in the field of food chemistry, can solve the problems of long reaction time, high pH value control requirements, and difficult quality control, etc., and achieve high substitution rate of esterification reaction , shorter reaction time and higher reaction efficiency

Active Publication Date: 2020-06-23
ZHEJIANG NHU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] On the other hand, the wet preparation process generally takes a long time to react, and the pH value and other process conditions control requirements are relatively high; in order to meet the needs of subsequent use, the starch octenyl succinate obtained by the wet method will be washed repeatedly to remove unreacted Sodium octenyl succinate, and then hydrolyzed, the repeated washing process will also lead to partial hydrolysis of octenyl succinate, resulting in a decrease in the degree of substitution
These all can cause the preparation technology of octenyl starch succinate to be loaded down with trivial details, and quality control difficulty is bigger

Method used

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  • A kind of method and application thereof for preparing starch octenyl succinate
  • A kind of method and application thereof for preparing starch octenyl succinate
  • A kind of method and application thereof for preparing starch octenyl succinate

Examples

Experimental program
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Effect test

Embodiment 1

[0034] 1) 10 kg of sweet potato starch, 0.06 kg of sodium hydroxide, and 30 kg of water were rapidly stirred for 10 minutes to obtain a dispersion; 0.3 kg of octenyl succinic anhydride was dissolved in 20 kg of ether to obtain an octenyl succinic anhydride solution.

[0035] 2) Pass the dispersion liquid and octenyl succinic anhydride solution into a static mixer for emulsification at a temperature of 20°C and a residence time of 20s to obtain a pre-emulsion;

[0036] 3) Control the temperature of the steam in the ejector to 120°C, and the feed rate to be 100kg / h, pump the pre-emulsion into the ejector for jet cooking to obtain a cooking slurry;

[0037]4) Add 50KU of α-amylase to the obtained slurry, and carry out enzymatic hydrolysis at 40° C. for 20 minutes.

[0038] Then adjust the pH to 3 to kill the enzyme, and then adjust the pH of the enzymolysis material back to 6; centrifuge the enzymolysis material, filter, and spray dry to obtain evenly substituted starch octenyl s...

Embodiment 2-7

[0040] According to the method of Example 1, parameters such as the type and amount of starch used, the type and amount of oil used, the amount of octenyl succinic anhydride and water used, the cooking temperature, and the feed rate were adjusted. Other conditions were the same as in Example 1, and the results were obtained. As follows (the mass unit in the table is kg; the - symbol in the table indicates that no solvent residue has been detected):

[0041]

[0042]

Embodiment 6

[0043] The side reaction of ethanol and octenyl succinic anhydride in embodiment 6 has caused the reaction efficiency of producing starch ester to significantly reduce.

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Abstract

The invention discloses a method for preparing starch octenyl succinate. The pre-emulsion containing starch, alkali, water, octenyl succinic anhydride and low boiling solvent is jet-cooked to obtain the cooking slurry, and then enzymatically hydrolyzed Starch octenyl succinate was obtained. In this method, the reaction is carried out under the conditions of jet cooking and high-temperature water vapor, and the intermolecular hydrogen bonds and crystal structure will be rapidly destroyed, and the starch molecular chains will be fully swollen due to the significant gelatinization process, and the amorphous region of the starch will increase significantly. At the same time, the high-temperature water vapor will also quickly remove the low-boiling solvent in the system, and the octenyl succinic anhydride will be dispersed and precipitated in the system quickly and irregularly, and fully contact with the starch particles under the high-speed liquid flow state of the injector. reaction, so that the octenyl succinic anhydride esterification reaction occurs in each position of the starch molecule, so that multiple positions of the starch will be significantly substituted, and the octenyl succinic acid starch ester has a higher degree of substitution and emulsifying performance .

Description

technical field [0001] The invention relates to the technical field of food chemistry, in particular to a method for preparing starch octenyl succinate. Background technique [0002] Starch is an important natural product consisting of amylose and amylopectin (results such as figure 1 shown). [0003] Starch octenyl succinate generally exists in the form of Starch Sodium Octenyl Succinates (SSOS), which is a highly safe emulsifying thickener. This product was approved by the US Food and Drug Administration in 1972. FDA (FDA) is included in the category of food additives in the United States, and it is currently the only starch octenyl succinate product that is allowed to be used as food additives by FDA. [0004] There are many reports about the preparation method of starch octenyl succinate. Caldwell and Wurzburg disclosed the wet process of starch octenyl succinate in US2661349A in 1953. The basic process includes: mixing starch into a certain concentration Starch milk,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B31/04C08J3/03C08L3/06
CPCC08B31/04C08J3/03C08J2303/06C08L3/06
Inventor 仇丹陈志荣竹文礼吴可军李建东石立芳祁勇李其川石清爱
Owner ZHEJIANG NHU CO LTD