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Plant fiber modified compound enzyme preparation and preparation method and application thereof

A compound enzyme preparation, plant fiber technology, applied in biochemical equipment and methods, enzymes, lyases, etc., can solve the problems of reducing the amount of chemicals used, not giving conditions for use, and restricting large-scale use, reducing chemical The effect of reducing the amount of products, improving the operation stability, and reducing the energy consumption of refining

Inactive Publication Date: 2016-10-12
颐思特(武汉)生物科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN201210581494.8 discloses a preparation method of beating enzyme preparation and its application, but the enzymes only have cellulase and xylanase, and the effect of reducing the amount of chemicals used and papermaking pollution is not obvious, and there is no Precise and controllable use conditions are given, which limits its large-scale use in the paper industry
[0005] To sum up, the traditional papermaking industry is polluting and consumes a lot of energy. The use of biological enzymes to pretreat plant fiber raw materials can reduce the amount of chemicals used and the energy consumption of refining, which is an important way to achieve clean production of papermaking. There are still many problems to be solved in terms of enzyme selection, precise control, process adaptability, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add water-containing solvent to the raw material, control the mass ratio of raw material and water-containing solvent to 1:10, the pH value of the water-containing solvent is 6.5, and the water temperature is 60°C; then add a compound enzyme preparation to the raw material solution for enzymolysis, the compound enzyme preparation The enzyme activity of each component is pectin 5000U, xylanase: 15000U, glucose oxidase: 200U, cellulase: 2000U, lipase: 8000U, the addition amount is 1.5‰ of the total dry weight of raw materials, and the action time is 1h; Add 2% w / v sodium hydroxide to the raw material solution after enzymolysis, send it into a refiner for beating, the refining power is 140Kw / h, and beating for 10h to obtain pulp, and measure the degree of beating. Subsequent operations are carried out through the above-mentioned treated slurry according to the conventional process.

[0024] Compared with no compound enzyme preparation, when using the same energy consumptio...

Embodiment 2

[0026] Add water-containing solvent to the raw material, control the mass ratio of raw material and water-containing solvent to 1:10, the pH value of the water-containing solvent is 7.5, and the water temperature is 45°C; then add a compound enzyme preparation to the raw material solution for enzymolysis, the compound enzyme preparation The enzyme activity of each component is pectin 6000U, xylanase: 8000U, glucose oxidase: 300U, cellulase: 5000U, lipase: 8000U, the addition amount is 2‰ of the total dry weight of raw materials, and the action time is 2h; Add 2% w / v sodium hydroxide to the raw material solution after enzymolysis, send it into a refiner for beating, the refining power is 140Kw / h, and beating for 10h to obtain pulp, and measure the degree of beating. Subsequent operations are carried out through the above-mentioned treated slurry according to the conventional process.

[0027] Compared with no compound enzyme preparation, when using the same energy consumption a...

Embodiment 3

[0029] Add water-containing solvent to the raw material, control the mass ratio of raw material and water-containing solvent to 1:10, the pH value of the water-containing solvent is 7, and the water temperature is 50°C; then add a compound enzyme preparation to the raw material solution for enzymolysis, the compound enzyme preparation The enzyme activity of each component is pectin 7000U, xylanase: 10000U, glucose oxidase: 300U, cellulase: 4000U, lipase: 9000U, the addition amount is 2.5‰ of the total dry weight of raw materials, and the action time is 2h; Add 2% w / v sodium hydroxide to the raw material solution after enzymolysis, send it into a refiner for beating, the refining power is 140Kw / h, and beating for 10h to obtain pulp, and measure the degree of beating. Subsequent operations are carried out through the above-mentioned treated slurry according to the conventional process.

[0030] Compared with no compound enzyme preparation, when the same energy consumption is use...

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Abstract

The invention discloses a plant fiber modified compound enzyme preparation, a preparation method and application of the plant fiber modified compound enzyme preparation to the field of papermaking. The compound enzyme preparation is prepared from pectinase, cellulose, lipase, xylanase, glucose oxidase and levan hydrolase and is applied to pretreatment of papermaking raw materials, sewage treatment loads can be reduced, pulping energy consumption can be reduced, the paper base strength can be improved, and the finished paper quality can be improved.

Description

technical field [0001] The invention relates to a plant fiber modified composite enzyme preparation, a preparation method and its application in the field of papermaking. Background technique [0002] The paper industry is an important industry that is closely related to the development of the national economy. At the same time, the paper industry is a traditional industry that consumes a lot of resources and produces a lot of pollutants. As people demand to improve the environment, protect forests, save energy and raw materials, and reduce the cost of papermaking, coupled with increasingly stringent environmental protection requirements, rising prices of papermaking raw materials and energy pressure, the energy saving, emission reduction, cleanliness of papermaking enterprises The transformation of modernized production is imperative. [0003] The papermaking process mainly consists of pulping, papermaking, coating and processing processes. Among them, the pulping stage i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N9/88C12N9/24C12N9/20C12N9/18C12N9/04D21B1/02
CPCC12N9/248C12N9/0006C12N9/18C12N9/20C12N9/2402C12N9/2437C12N9/88C12Y101/03004C12Y301/01003C12Y301/01011C12Y302/01015C12Y402/02001D21B1/021
Inventor 刘浩赵俊屹
Owner 颐思特(武汉)生物科技股份有限公司
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