Preparation method of environment-friendly potato-containing modified starch

A technology of modified starch and potato, which is applied in the field of ultrasonic-mechanical activation solid-phase method to prepare environmentally friendly potato modified starch, which can solve the problems of difficult liquid phase control, low starch utilization rate, long production cycle, etc., and achieve improved transparency, enzyme The effect of increasing the hydrolysis activity and lowering the gelatinization temperature

Inactive Publication Date: 2016-10-26
张莘蔓
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an environment-friendly preparation method containing modified potato starch to solve the problems of the prior art, such as complex preparation process, long cycle, high cost caused by the liquid phase involved in the reaction, and low starch utilization rate. The method of the present invention overcomes the problems of The wet production (liquid phase condition) process is not easy to control, the degree of esterification is low, and the production cycle is long. The produced environmentally friendly potato modified starch has film-forming properties, cohesive properties, anti-coagulation properties, transparency, Anti-aging, high utilization rate of starch, etc., can be used in thickeners, food additives, packaging materials and other fields

Method used

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preparation example Construction

[0026] In an embodiment, the environment-friendly type comprises the preparation method of modified potato starch, comprising the following steps:

[0027] S1: Mix starch, oxalic acid, cinnamic acid, and hydrochloric acid evenly in a mass ratio of 130-145:3-5:3-4:1.1-1.2, and the starches are potato starch, lotus root starch, and wheat starch Composition, the mass ratio of potato starch, lotus root starch, and wheat starch is 4-5:2-3:1-2, the size of the starch is 60-80 mesh, and the concentration of hydrochloric acid is 10%-12% , Put the uniformly mixed starch, oxalic acid, cinnamic acid and hydrochloric acid into the ultrasonic reactor, and pretreat under the conditions of ultrasonic power of 500-650W, temperature of 50-55°C, and stirring speed of 200-400r / min 5-7min, obtained material A;

[0028] S2: Put the material A prepared in step S1 into a ball mill, and control the bulk volume ratio of the reaction material to the material ball to be 1-1.2g:1.5-2.5ml, and the materi...

Embodiment 1

[0032] An environment-friendly preparation method comprising modified potato starch, comprising the following steps:

[0033]S1: Mix starch, oxalic acid, cinnamic acid, and hydrochloric acid evenly in a mass ratio of 130:3:3:1.1. The starch is a composition of potato starch, lotus root starch, and wheat starch. Potato starch, lotus root starch The mass ratio of starch and wheat starch is 4:2:1, the size of the starch is 80 mesh, the concentration of the hydrochloric acid is 12%, and the uniformly mixed starch, oxalic acid, cinnamic acid, and hydrochloric acid are put into ultrasonic In the device, the ultrasonic power is 500W, the temperature is 50 ℃, and the stirring speed is 400r / min. The pretreatment is 7min, and the material A is obtained;

[0034] S2: Put the material A prepared in step S1 into a ball mill, control the bulk volume ratio of the reaction material and the material ball to 1g:1.5ml, the material ball is an aluminum alloy ball, and the diameter of the material...

Embodiment 2

[0037] An environment-friendly preparation method comprising modified potato starch, comprising the following steps:

[0038] S1: Mix starch, oxalic acid, cinnamic acid, and hydrochloric acid uniformly in a mass ratio of 145:5:4:1.3. The starch is a composition of potato starch, lotus root starch, and wheat starch. Potato starch, lotus root starch The mass ratio of starch and wheat starch is 5:3:2, the size of the starch is 60 mesh, the concentration of the hydrochloric acid is 10%, and the uniformly mixed starch, oxalic acid, cinnamic acid, and hydrochloric acid are put into ultrasonic In the device, the ultrasonic power is 650W, the temperature is 55 ℃, and the stirring speed is 200r / min. The pretreatment is 5min, and the material A is obtained;

[0039] S2: put the material A prepared in step S1 into a ball mill, control the bulk volume ratio of the reaction material and the material ball to be 1.2g:2.5ml, the material ball is a quartz ball, and the diameter of the material...

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Abstract

The invention discloses a preparation method of environment-friendly potato-containing modified starch, and belongs to the technical field of modified starch preparation. The environment-friendly potato-containing modified starch is prepared through the steps of ultrasonic pretreatment, ultrasonic-mechanical esterification, washing, drying and the like, and the problems that the process of wet production (liquid-phase condition) is unlikely to control, the esterification degree is low, the production cycle is long and the like are solved; the esterification degree of the prepared environment-friendly potato-containing modified starch is 1.1-1.5, the whiteness of the starch is 89-93, the moisture content of the starch is 3% to 6%, the water absorption of the starch is 2% to 4%, the density of the starch is 1 to 1.3 g / cm<3>, and the utilization ratio of the starch is 95.5% to 95.9%; the preparation method accords with the physical and chemical performance indexes for the starch in Chinese standards GB / T12097, GB / T22427.6-2008, and GB / T12087-2008; and the starch has the advantages that the film-forming property, coagulation resistance, transparency, ageing resistance and utilization rate are high.

Description

technical field [0001] The invention belongs to the technical field of modified starch preparation, and in particular relates to an ultrasonic-mechanical activation solid-phase method for preparing environmentally friendly modified starch containing potato. Background technique [0002] Starch ester is an important type of modified starch, which refers to a type of modified starch obtained by esterifying the hydroxyl groups in the starch structure with organic acids or inorganic acids. The current starch esterification products mainly include starch acetate, starch phosphate, starch xanthate, starch nitrate and other short-chain organic acids or inorganic acid esters, as well as starch stearate and starch octenyl succinate. Isochorectin starch esters. However, there are few studies on the combined denaturation of starch diesterification. Although monoesterified starch has better processing performance than native starch, it often has single performance. In order to meet th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B31/04C08B31/06
CPCC08B31/04C08B31/06
Inventor 张莘蔓
Owner 张莘蔓
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