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Fiber oxidase composition for improving whiteness of paper and papermaking method and application thereof

A fiber oxidase and composition technology, applied in the directions of oxidoreductase, biochemical equipment and methods, paper, etc., to achieve the effect of improving whiteness, reducing dosage and improving paper whiteness

Active Publication Date: 2015-02-11
RISINGSTAR BIOTECH GUANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, biological enzyme deinking agent has been used in the field of paper deinking; but the effect of using biological enzymes in the prior art is limited to improving the dissociation of ink dots from the fiber surface

Method used

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  • Fiber oxidase composition for improving whiteness of paper and papermaking method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1 Fiber oxidase and composition thereof process ONP pulp

[0059] 1. Purpose of the experiment

[0060] The effect of fiber oxidase and its composition on paper whiteness was evaluated by comparative analysis.

[0061] 2. Experimental method

[0062] (1) Test material preparation

[0063] Recycled old newspapers (ONP) and old magazines (OMG) were mixed in a ratio of 80%:20%. 200 grams of mixed waste paper and 1300 grams of white water (adding CaCl 2 Adjust the hardness to 400 PPM; temperature 70°C), place in a 10-liter hydropulper, add caustic soda, and pulp for 7.5 minutes; after pulping, add 2700 grams of white water to obtain a 5% pulp.

[0064] Fiber oxidase (PMO) is GH61 provided by Dyadic Company of the United States. This enzyme is produced from the strain Myceliophthora thermophila. Its amino acid sequence is described in detail in US Patent No. 8,298,795 and US Patent Application USA2012 / 0083019.

[0065] Glucose Oxidase (GOX) is a commercial pr...

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Abstract

The invention discloses a fiber oxidase composition for improving whiteness of paper and a papermaking method and an application thereof. The fiber oxidase composition is mainly prepared from the following components: a bio-enzyme component and an auxiliary component, wherein the bio-enzyme component has an oxidizing function for fibers and particularly refers to the fiber oxidase which changes the fiber surface property by virtue of redox reaction; the auxiliary component has a function of increasing the catalytic activity of the fiber oxidase and particularly refers to a reaction substrate of the fiber oxidase. The invention further provides a method of the composition for making paper. The composition is used for treating paper pulp, so that the whiteness of the obtained paper can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of biological enzymes and the use of biological enzymes to improve the physical and chemical properties of fibers, in particular to a fiber oxidase composition for improving the whiteness of paper, a papermaking method and its application. Background technique [0002] China's paper industry has maintained a high growth rate for 10 consecutive years from 2000 to 2010. By 2011, my country's paper and cardboard production and consumption both exceeded 100 million tons, ranking first in the world. The main raw material of paper or cardboard is fiber. Because pulping and papermaking require a large amount of raw materials and have a certain impact on the environment, the paper industry in all countries in the world is currently producing compressed pulp to ensure forest resources. In addition, domestic raw material forests The construction of the base is slow, the supply of materials is limited, and the developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N9/88C12N9/26C12N9/24C12N9/18C12N9/16C12N9/08C12N9/04C12N9/02D21H17/00D21H21/30
CPCC12N9/0006C12N9/0061C12N9/0065C12N9/16C12N9/18C12N9/2408C12N9/2411C12N9/2437C12N9/2445C12N9/248C12N9/88C12Y101/01001C12Y101/03004C12Y101/99018C12Y110/03002C12Y111/01006C12Y111/01014C12Y302/01004C12Y302/01021C12Y302/01091D21H17/005D21H21/10D21H21/30
Inventor 王祥槐谢焱
Owner RISINGSTAR BIOTECH GUANGZHOU