Method for preparing chitin/chitosan from rind and shell of silkworm chrysalis and fly maggot

A chitin and chitosan technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of low quality of chitin products, difficulty in preparing chitin, and excessive fat in the skin , to achieve beneficial quality control, excellent stability, and no pollution
CN101078023AActive Publication Date: 2007-11-28CHONGQING LIKE BIOTECH
0 Cites 31 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHONGQING LIKE BIOTECH
Publication Date
2007-11-28

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention discloses a method for producing chitin / chitosan from the shell of silkworm chrysalis, fly larvina, which comprises: to break into pieces to progress the shell of silkworm chrysalis, fly larvina by dry or wet method; React the fine grits obtained with the fat enzyme and protein enzyme from micro-organism by a enzymolysis reaction in order to to eliminate the fat and protein contained in the chrysalis / larvina raw material; bleach using two-step method; Collect the materials after bleach and to wash, dry materials to obtain chitin product; Obtain chitosan by to circulate to cast off Acetyl reaction in a Rhizopus oryzae full cell immobilization biology reaction vessel; Obtain height hydrosoluble shel oligosaccharide by liquid submerged fermentation chitosan using acid formers. The present invention improves the quality of the product and the efficiency of production; reduces greatly the energy cost, the usage of acid, alkali, oxidant and other harmful chemistry thing and the discharge of effluent, waste residue; produces byproducts of high value at the same time; utilizes the resources integratedly; and increases the benefits of production.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of biotechnology application, new material and chemical product production, and particularly relates to a method for preparing chitin / chitosan from silkworm chrysalis, fly maggots and other insect skins by biological methods, specifically, The method is to prepare chitin and / or chitosan from insect skin and shell raw materials by co-enzymolysis with various microbial enzymes and biotransformation in an immobilized whole cell bioreactor. Background technique

[0002] Chitin, also known as chitin, scientific name chitin (chitin), is a straight-chain natural amino polysaccharide, and it is also the only edible animal fiber with a positive charge found so far. The reserves of chitin in nature are second only to cellulose, and the annual biosynthesis of the biosphere is about 10 billion tons, which is the second largest biological resource on the earth. As a structural substance, chitin is mainly distributed in ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More