Method for preparing oligosaccharide from biomass
Through biomass pretreatment and enzymatic hydrolysis, combined with the decolorization and purification technology of modified porous silica, the problem of difficult separation of by-products and impurities in the preparation of oligosaccharides is solved, and the preparation and low-cost production of high-purity oligosaccharides are achieved.
CN120230811AActive Publication Date: 2025-07-01光大绿色环保管理(深圳)有限公司 +1
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Patent Information
- Application Number
- CN202510712577.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2045-05-30
AI Technical Summary
Technical Problem
In the prior art, there is a problem that by-products and impurities are difficult to separate during the preparation and purification of xylosol, resulting in high production costs.
Method used
Biomass is used for pretreatment and enzymatic hydrolysis, and decolorization and purification are used to decolorize and purify, and acetic acid and xylose are adsorbed by electrostatic attraction to reduce the content of by-products.
Benefits of technology
The purity of xylooligosaccharides is improved, production costs are reduced, and energy consumption is low, and the purifier can be used repeatedly.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the field of biomass conversion, and particularly relates to a method for preparing oligosaccharide from biomass, which comprises the following steps: pretreating the biomass to obtain a sugar solution; performing enzyme hydrolysis on the sugar solution to obtain enzymatic hydrolysate; decoloring the enzymatic hydrolysate; preparing copper-doped porous silicon dioxide; grafting hydroxymethyl on the surface of the porous silicon dioxide to obtain modified silicon dioxide; and purifying the decolorized enzymatic hydrolysate by using modified silicon dioxide to remove acid and xylose in the decolorized enzymatic hydrolysate. The method provided by the invention can be used for separating acid, xylose and other micromolecular byproducts and impurities in the hydrolysis process, and the preparation and purification cost of xylooligosaccharide is reduced.
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