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Method for separating beet polysaccharide and betaine by coupling compound enzyme with continuous nanofiltration membrane

A compound enzyme and betaine technology, applied in chemical instruments and methods, preparation of organic compounds, climate sustainability, etc., can solve problems such as affecting the crystallization rate and quality of sugar products, high process energy consumption, and low sugar production efficiency. , to reduce the viscosity of the feed liquid, make full use of resources and increase the purity

Pending Publication Date: 2022-05-24
XINJIANG LYUYUAN SUGAR IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the purity of sugar products, most domestic sugar factories adopt the double carbonic acid method to fill and clean the beet juice in the process of sugar production. However, this process consumes a lot of energy, and the efficiency of sugar production is low, and some non-sugar components are still retained. It is not effectively removed in the concentrated sugar solution, which affects the crystallization rate and quality of the final sugar product
There are more non-sugar components that become waste honey and then discharge into groundwater, wasting resources and causing a certain degree of water pollution

Method used

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  • Method for separating beet polysaccharide and betaine by coupling compound enzyme with continuous nanofiltration membrane
  • Method for separating beet polysaccharide and betaine by coupling compound enzyme with continuous nanofiltration membrane
  • Method for separating beet polysaccharide and betaine by coupling compound enzyme with continuous nanofiltration membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for separating beet polysaccharide and betaine by a composite enzyme coupled continuous nanofiltration membrane, the specific steps are as follows (see attached figure 1 ):

[0035] (1) Pretreatment: After the sugar beet is washed and shredded, water is used as the extract, which is continuously exuded in the exudator, and impurities are removed in the hydrocyclone to obtain the beet extract.

[0036] (2) Compound enzymatic hydrolysis: add 3‰(w / v) compound enzyme (pectinase:amylase:xylanase=7:2:1) to the sugar beet extract, mix well, adjust with citric acid The pH of the feed solution was 5, and the temperature was heated to 45° C. for enzymatic hydrolysis for 2 h to obtain an enzymatic hydrolysis leaching solution. The processing capacity of the enzymatic hydrolysis tank in this example is 300m 3 / h.

[0037] (3) Clarification and decolorization: The enzymatic hydrolysis leaching solution settles naturally for 30 minutes, and the supernatant liquid is clari...

Embodiment 2

[0069] Detect the polysaccharide and betaine content of the dry beet polysaccharide and betaine dry products or beet polysaccharide and betaine mixed crude products obtained in Example 1 and Comparative Examples 1-3, and the results are shown in Table 2.

[0070] The yield of crude polysaccharide was measured by the phenol-sulfuric acid method (g of crude polysaccharide / weight of raw material g × 100%), and the purity of betaine in the freeze-dried crude product was measured by HPLC (g of betaine mass / weight of crude product / g × 100%); betaine Yield (betaine mass g / raw material weight g×100%), yield (betaine betaine total weight g / raw material weight g×100%).

[0071] Table 2

[0072]

[0073]

[0074] It can be seen from the above results that after the treatment of compound enzymes I and II, the monosaccharides, disaccharides and pectin enzymolysis products (galacturonic acid) and the same polysaccharides in the exudate enter the ultrafiltration stage together, and are...

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Abstract

The invention discloses a method for separating beet polysaccharide and betaine by coupling a compound enzyme with a continuous nanofiltration membrane, and relates to the technical field of effective component separation, the method comprises the following steps: S1, adding the compound enzyme into a beet leaching solution, and carrying out enzymolysis to obtain an enzymolysis leaching solution, the compound enzyme being a mixture of pectinase, amylase and xylanase; s2, after the enzymolysis leachate is clarified by an ultrafiltration membrane and decolorized by activated carbon, carrying out primary nanofiltration to obtain trapped fluid 1 and permeated fluid 1; performing secondary nanofiltration on the permeate 1 to obtain trapped fluid 2 and permeate 2; the trapped fluid 1 is a beet polysaccharide concentrated solution, and the permeate 2 is a betaine concentrated solution. The compound enzyme coupling continuous nanofiltration membrane technology can continuously separate beet polysaccharide and betaine from beet exuded juice, the recovery rate is high, the membrane pressure is reduced, the service life of the membrane is prolonged, the energy consumption is reduced, and the technology is suitable for lasting sugar manufacturing technology requirements.

Description

technical field [0001] The invention relates to the technical field of separation of effective components, and more particularly relates to a method for separating beta polysaccharide and betaine by compound enzyme coupled continuous nanofiltration membrane. Background technique [0002] Sugar beet is one of the main sugar crops, sugar beet accounts for about 25% of the global sugar production, and its production scale and economic benefits are huge. In order to improve the purity of sugar products, most domestic sugar factories use the double carbonation method to clarify the beet exudate juice in the sugar production process. However, this process has high energy consumption, low sugar production efficiency, and some non-sugar components still remain. It is not effectively removed in the concentrated sugar solution, which affects the crystallization rate and quality of the final sugar product. There are more non-sugar components that become waste honey and then discharge ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14C12P13/00C12P19/04C07C227/40C07C229/12
CPCC12P19/14C12P13/007C12P19/04C07C227/40C07C229/12Y02P20/10
Inventor 赵振刚黄喆王贯陶飞陈文江叶冬明张兵肖莉张国玉刘晓双王陈强魏建刘蕾
Owner XINJIANG LYUYUAN SUGAR IND CO LTD
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