Method for preparing functional chitosan hydrolyzate by low concentration acid decomposition method

摘要

[Technical Field];The present invention relates to a method for preparing chitosan hydrolyzate extracted from the shell of crab crustaceans.;[Technical challenge to solve];Conventional chemical decomposition methods not only raise safety questions due to the use of strong acids, but also cause problems with marine environmental pollution, removal of excess salts generated during neutralization, and chemical reactions such as deamination coloring during hydrolysis. The decomposition method is excellent in safety, and there are problems in industrial production such as expensive enzymes and expansion of biological process facilities during mass production.;[Summary of solution];The present invention is a method of preparing chitosan hydrolyzate having almost the same yield as that produced by conventional chemical decomposition by adding chitosan to low concentration hydrochloric acid and organic acid and then decomposing by microwave heating or high temperature and high pressure treatment.;[Important Uses of the Invention];Health-oriented foods, medicines, food preservatives, heavy metal adsorbents, cosmetics, etc.