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Pulping enzyme

A technology of beating enzyme and amylase, applied in the field of beating enzyme, can solve problems such as low enzyme activity and poor enzymatic hydrolysis efficiency, and achieve the effects of improving fiber interweaving ability, reducing binding force and improving paper machine running performance

Inactive Publication Date: 2021-03-23
湖南海正生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing beating enzymes have problems such as low enzyme activity and poor enzymatic hydrolysis efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] It consists of the following raw materials in parts by weight: 5 parts of cellulase, 2 parts of alpha-amylase and 1 part of papain. The cellulase activity is 1000U / g, the amylase activity is 200U / g, and the papain activity is 300U / g.

Embodiment 2

[0022] It consists of the following raw materials in parts by weight: 10 parts of cellulase, 7 parts of alpha-amylase and 5 parts of papain. The cellulase activity is 1500U / g, the amylase activity is 500U / g, and the papain activity is 700U / g.

Embodiment 3

[0024] It consists of the following raw materials in parts by weight: 7 parts of cellulase, 5 parts of alpha-amylase and 3 parts of papain. The cellulase activity is 1250U / g, the amylase activity is 350U / g, and the papain activity is 500U / g.

[0025] Compared with the prior art, the beating enzyme of the present invention is a compound enzyme preparation made based on the division of plant fiber cell walls, and pretreatment is carried out before pulp refining of papermaking, which can significantly improve the effect. By degrading the cellulose in the fiber cell wall to a limited extent, it promotes the fibrillation of the fibers, effectively reduces the energy consumption of refining, reduces the binding force between the primary wall and the secondary wall of the fiber, and promotes the microfibrilization of the secondary wall and fiber swelling. Increase the cross-linking between fibers and the binding force between fibers, and improve the strength index of paper.

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PUM

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Abstract

The invention provides a pulping enzyme, and relates to the technical field of biology. The pulping enzyme is composed of the following raw materials in parts by weight: 5-10 parts of cellulase, 2-7 parts of amylase and 1-5 parts of papain. A compound enzyme preparation prepared on the basis of fibrillation of plant fiber cell walls is pretreated before pulping of papermaking pulp, and the effectcan be remarkably improved. Through limited degradation of cellulose of fiber cell walls, fiber fibrillation is promoted, pulping energy consumption is effectively reduced, binding force of primary walls and secondary walls of fibers is reduced, fibrillation and fiber swelling of fine fibers of the secondary walls are promoted, cross-linking among the fibers and binding force among the fibers areincreased, and the strength index of finished paper is improved.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a beating enzyme. Background technique [0002] Pulping enzyme is a compound enzyme preparation specially used for pulping (grinding) in papermaking. It is used for the pretreatment of pulp before grinding to improve the performance of beating (grinding) pulp. It can comprehensively optimize the papermaking production process, obtain energy saving and improve production quality and efficiency. The effect of improving production efficiency. The existing beating enzymes have problems such as low enzyme activity and poor enzymolysis efficiency. Contents of the invention [0003] The object of the present invention is to propose a kind of beating enzyme, which is a composite enzyme preparation made based on the division of plant fiber cell walls, and can be pretreated before pulp refining in papermaking, which can significantly improve the effect. By degrading the cellulose in the fi...

Claims

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Application Information

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IPC IPC(8): D21C5/00C12N9/42C12N9/26C12N9/50
CPCC12N9/2414C12N9/2437C12N9/63C12Y302/01001C12Y304/22002D21C5/005
Inventor 李政
Owner 湖南海正生物科技有限公司