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Starch octenylsuccinate, preparation method, and application thereof

A technology of octenyl succinic acid and starch ester, which is applied in the field of modified starch production, can solve the problems of emulsion thickening and difficult pouring, and achieve high solid dispersion, good emulsification, and improved hydrophobicity

Inactive Publication Date: 2018-06-29
SHENYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moisturizing lotion uses potassium soap as an emulsifier during the preparation process, but the lotion will thicken during storage and is not easy to pour out from the bottle

Method used

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  • Starch octenylsuccinate, preparation method, and application thereof
  • Starch octenylsuccinate, preparation method, and application thereof
  • Starch octenylsuccinate, preparation method, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 Shown, a kind of preparation method of octenyl starch succinate:

[0029] 1) With quinoa starch as raw material, in the extruder, the moisture content of the material is 40%, the feeding speed is 10kg / h, the temperature at the discharge port of the extruder is 100°C, the screw speed is 300rpm, the discharge port The diameter of the circular die hole in the die head is 4.5 mm, and the starch is extruded and expanded for pretreatment.

[0030] 2) Prepare the activated starch obtained in step 1) into a 15% starch emulsion, adjust the pH to 9.5 with 3% NaOH solution, stir in a water bath and heat up to 50°C, mix the starch emulsion uniformly and stabilize it for a period of time, and slowly add a mass fraction of 30% (starch dry basis) hydrogen peroxide.

[0031] 3) After the solution described in step 2) reacted for 3 hours, add an appropriate amount of sodium sulfite solution to neutralize the remaining hydrogen peroxide until the end, add 3% HCl soluti...

Embodiment 2

[0035]1) With quinoa starch as raw material, in the extruder, the moisture content of the material is 40%, the feeding speed is 20kg / h, the temperature at the discharge port of the extruder is 150°C, the screw speed is 350rpm, the discharge port The diameter of the circular die hole in the die head is 4.5 mm, and the starch is extruded and expanded for pretreatment.

[0036] 2) Prepare the activated starch obtained in step 1) into a 15% starch emulsion, adjust the pH to 9.5 with 3% NaOH solution, stir in a water bath and heat up to 50°C, mix the starch emulsion evenly and stabilize it for a period of time, then slowly add a mass fraction of 30% (starch dry basis) hydrogen peroxide.

[0037] 3) After the solution described in step 2) reacted for 3 hours, add an appropriate amount of sodium sulfite solution to neutralize the remaining hydrogen peroxide until the end, add 3% HCl solution to adjust the pH to 6.5, centrifuge to discard the supernatant, and then wash with 70% ethano...

Embodiment 3

[0041] 1) With quinoa starch as raw material, in the extruder, the moisture content of the material is 30%, the feeding speed is 10kg / h, the temperature at the discharge port of the extruder is 125°C, the screw speed is 350rpm, the discharge port The diameter of the circular die hole in the die head is 4.5 mm, and the starch is extruded and activated for pretreatment.

[0042] 2) Prepare the activated starch obtained in step 1) into a 15% starch emulsion, adjust the pH to 9.5 with 3% NaOH solution, stir in a water bath and heat up to 50°C, mix the starch emulsion uniformly and stabilize it for a period of time, and slowly add a mass fraction of 30% (starch dry basis) hydrogen peroxide.

[0043] 3) After the solution described in step 2) reacted for 3 hours, add an appropriate amount of sodium sulfite solution to neutralize the remaining hydrogen peroxide until the end, add 3% HCl solution to adjust the pH to 6.5, centrifuge to discard the supernatant, and then wash with 70% et...

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Abstract

The invention discloses a preparation method of low-viscosity and high-hydrophobic starch octenylsuccinate which is especially used for moisturizing emulsions. The preparation method includes steps of: 1) carrying out extrusion puffing to starch to prepare a starch emulsion, and preparing oxidized starch with H2O2 as an oxidant; 2) regulating pH with a NaOH solution and slowly adding the octenylsuccinic anhydride to the starch emulsion, and after a reaction is finished, regulating the pH of the starch emulsion with a HCl solution; 3) washing, centrifuging, drying and crushing the starch emulsion to obtain the low-viscosity and high-hydrophobic starch octenylsuccinate. With quinoa (corn and rice) starch as raw material, the starch is pre-treated through the extrusive puffing, so that reaction active sites are exposed, and reaction efficiency and substitution degree are increased. After the pressing activation pre-treatment and oxidization treatment, the hydrophobic group, octenylsuccinic anhydride, is introduced to increase the hydrophobicity of the surfaces of the starch granules, so that the starch octenylsuccinate has excellent emulsibility and emulsification stability, and can be extensively applied to moisturizing emulsions.

Description

technical field [0001] The invention specifically relates to a method for preparing low-viscosity and high-hydrophobic starch octenyl succinate specially used for moisturizing emulsion, and belongs to the field of production technology and application of modified starch. Background technique [0002] Quinoa (Chenopodium quinoa Willd), also known as South American quinoa, is native to the Andes in South America and is one of the main food crops in the area. It has the reputation of "whole nutritional food" and "super grain". The starch content of quinoa is about 60%, and it has good processing characteristics, such as retrogradation, freeze-thaw stability and shear recovery ability, and has a wide range of applications. my country is the largest producer and consumer of rice, with an annual output of about 180 million tons of rice. However, compared with the deep processing of corn starch and potato starch, the processing industry of rice starch is relatively backward. Rice...

Claims

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Application Information

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IPC IPC(8): C08B31/04C08B31/18C08B30/02
CPCC08B30/02C08B31/04C08B31/18
Inventor 肖志刚聂文文杨庆余王鹏杨柳王娜刘雪澜张文蕾
Owner SHENYANG NORMAL UNIV
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