Method for preparing modified corn porous starch by composite cross linkage

Abstract

The invention aims to provide a new method for taking corn starch as raw material and obtaining corn multi-orifice starch through enzymolysis after compound cross linking modification, that is to say a preparing method for compound cross linking modification corn multi-orifice starch. The invention adopts the preparation process of a one-step continuous method; the compound enzyme with the proportion of alpha-amylase to maltogenic amyiase being one to eight serves as an enzymolysis agent to improve the structural stability, the water and oil absorption performance of the multi-orifice starch through compound modification; compared with the multi-orifice starch, the water absorption performance and the oil absorption performance of the compound cross linking multi-orifice starch are respectively improved by 25 percent and 66 percent. The invention relates to a plurality of application fields such as flavoring essence, pigment, probiotics, pesticide, fertilizer, agricultural chemicals, medicine, cosmetics, printing ink and paper pulp. The multi-orifice starch which is used to absorb a great variety of objects before direct use has the functions of releasing the objects slowly and protecting the objects.

Description

Preparation method of composite cross-linked modified corn porous starch Technical field The invention relates to a method for preparing composite modified starch, in particular to a method for preparing composite crosslinked modified corn porous starch. technical background With the advancement of science and technology, people develop starch modification technology based on the structure and physical and chemical properties of starch, that is, using physical, chemical or enzymatic methods to process the original starch to make it suitable for a particular purpose. This process is called For starch modification, its product is called modified starch. In foreign countries, modified starch is a high-tech fine chemical product, and its output has accounted for 20% to 30% of the total starch output. Modified starch can be widely used in papermaking, food, textile, detergent and cosmetics, printing and dyeing, leather, soil stabilization and environmental protection and other fields...

AI Technical Summary

Problems solved by technology

At present, the research on porous starch is mainly concentrated in Japan and the United States. The domestic research on the preparation and performance of porous starch is not deep enough. Therefore, the best way and process parameters of porous starch preparation technology are discussed to improve the application performance of porous starch and broaden its application. Scope is the main task of the current study

Images