Method for preparing nano-class rice starch

Abstract

The invention discloses a making method of nanometer-grade rice starch through hyperhigh pressure homogeneous and hyperfine grinding method, which is characterized by the following: 1. combining dry method grinding and wet method grinding method; changing wet grinding method for drinking industrial condition widely; 2. making the grain size of rice starch reach nanometer grade with strong surface adsorption affinity and dispersion and solubility; 3. simplifying manufacturing technique; reducing cost with little environmental pollution.

Description

technical field [0001] The invention relates to a preparation method of nanometer starch. Background technique [0002] The production method of starch miniaturization has multiple, and existing production method has following shortcoming: 1, chemical synthesis method, as the nano-starch particle of inverse microemulsion polymerization synthesis, although can make micron, submicron or even nanometer 2. Ball mill crushing, because the particle size of starch is less than 20 μm, its efficiency is low, energy consumption is large, and processing time is long. Moreover, it is difficult to crush starch with a ball mill, and it is difficult to reach the nanometer level, even if it is, it is only a small part; 3. When the starch powder is crushed by a supersonic jet mill, when the starch powder is less than 1 μm, it cannot be sieved, and the granularity requirement cannot be reached after one crushing. The powder has to be crushed repeatedly, and because of the need for air source...

AI Technical Summary

Problems solved by technology

[0002] The production method of starch miniaturization has multiple, and existing production method has following shortcoming: 1, chemical synthesis method, as the nano-starch particle of inverse microemulsion polymerization synthesis, although can make micron, submicron or even nanometer starch powder, but the output is low, the processing cost is high, and the application range is narrow; 2. Ball mill crushing, because the particle size of starch is less than 20 μm, its efficiency is low, energy consumption is large, and processing time is long

Moreover, it is difficult to crush starch with a ball mill, and it is difficult to reach the nanometer level, even if it is, it is only a small part; 3. When the starch powder is crushed by a supersonic jet mill, when the starch powder is less than 1 μm, it cannot be sieved, and the granularity requirement cannot be reached after one crushing. The powder has to be crushed repeatedly. In addition, due to the need for an air source, the cost of crushing with a supersonic jet mill is also relatively high.