Green preparation process of chitin with high deacetylation degree
By combining low-temperature enzymatic hydrolysis, low eutectic solvent, and ionic liquid synergistic treatment with a three-stage recovery system, the problems of high energy consumption and environmental pollution in the preparation of high-deacetylated chitin have been solved, realizing a green preparation process that is efficient, low-energy, and low-pollution.
CN120795201AInactive Publication Date: 2025-10-17QINGDAO HAODA MARINE HEALTH FOOD
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Patent Information
- Application Number
- CN202511261114.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-05
- Publication Date
- 2025-10-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
Existing technologies consume a lot of energy and cause serious environmental pollution when preparing chitin with high degree of deacetylation, and traditional methods are difficult to achieve efficient and clean production.
Method used
By employing low-temperature enzymatic hydrolysis pretreatment, eutectic solvent and ionic liquid synergistic effect, combined with multi-stage solvent recovery and recycling technology, the efficient deacetylation conversion of chitin is achieved.
Benefits of technology
Significantly reduces energy and chemical consumption, enables the green preparation of chitin with high degree of deacetylation, reduces energy consumption and environmental pollution, and improves preparation efficiency.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of green processing of biomass materials, and particularly relates to a green preparation process of high-deacetylation-degree chitin. The preparation method aims at the problem of high energy consumption of existing high-deacetylation-degree chitin preparation. According to the method, raw materials are pretreated by utilizing a compound enzyme system under a low-temperature condition, chitin crystal lattices are preliminarily dissociated by combining a deep eutectic solvent at a medium temperature, high deacetylation conversion is realized through short-time dissolution of an ionic liquid, and meanwhile, a membrane separation-electrodialysis-gradient freezing crystallization three-stage recycling technology is matched, so that recycling of the solvent is realized; the method greatly reduces the reaction temperature and energy consumption, avoids the use of corrosive reagents, and has the advantages of environmental protection, low energy consumption, high deacetylation degree of the product, excellent quality and the like.
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