Fiber oxidase composition for changing and improving fiber property, and papermaking method and application

A fiber oxidase and composition technology, which is applied in the directions of oxidoreductase, textiles and papermaking, biochemical equipment and methods, etc., can solve the problems of reducing fiber yield, increasing paper density, increasing product quantification, etc., and improving water filtration. performance, reducing freeness, and reducing the effect of beating energy consumption

CN104342424AActive Publication Date: 2015-02-11RISINGSTAR BIOTECH GUANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-02-11

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Abstract

The invention discloses a fiber oxidase composition for changing and improving fiber property, and a papermaking method and an application. The composition mainly comprises the following components: a bio-enzyme component with an oxidation function on fibers, and an auxiliary component for increasing catalytic activity on the fiber oxidase, wherein the bio-enzyme component is fiber oxidase for changing the surface property of the fiber by redox reaction; the auxiliary component is protein with catalytic action on the fiber oxidase; and the weight ratio of the bio-enzyme component to the auxiliary component is 1 to (0.4-50). When the composition is used for processing paper pulp, the strength of the prepared paper is significantly enhanced, and the drainage performance of the paper pulp is greatly improved.
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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 composition for changing and improving fiber surface properties with fiber oxidase, 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 limit...

Examples

Embodiment 1

[0081] Example 1 Effects of Fiber Oxidase and Oxidase Combined Treatment on Mechanical Hardwood Pulp on Paper Strength

[0082] 1. Purpose of the experiment

[0083] The effect of fiber oxidase composition on mechanical hardwood pulp on its paper strength was evaluated by comparative analysis.

[0084] 2. Experimental method

[0085] (1) Test material preparation

[0086] The mechanical hardwood pulp mentioned in this experiment was provided by the pulp mill of Shandong Wanguo Paper Co., Ltd. No. 26 machine.

[0087] 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.

[0088] Laccase and cellobiose dehydrogenase are commercial products of Genencor, a DuPont group.

[0089] (2) Papermaking method

[0090] A, pulping: 200 grams of pulp plates and 1300 grams of deioni...

Embodiment 2

[0108] Example 2 Effects of Fiber Oxidase and Laccase Combined Treatment on Recycled OCC Pulp on Paper Strength

[0109] 1. Purpose of the experiment

[0110] The effect of fiber oxidase composition on OCC pulp on its paper strength was evaluated by comparative analysis.

[0111] 2. Experimental method

[0112] (1) Test material preparation

[0113] Recycled OCC waste paper pulp is obtained from the fine pulp tank of the multi-disk thickener of Guangdong Tomorrow Paper Industry, with a pulp concentration of 4.8-5%;

[0114] 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 US8,298,795 and US Patent Application USA2012 / 0083019;

[0115] Laccase is a commercial product of Genencor, a subsidiary of DuPont Group.

[0116] (2) Papermaking method

[0117] A. Response:

[0118] (1) Take 400 grams of the prepared slurry above,...

Embodiment 3

[0132] Example 3 Effect of Fiber Oxidase and Its Different Compositions Treating Wood Chips on Energy Consumption of Pulping

[0133] 1. Purpose of the experiment

[0134] The effects of fiber oxidase and its different compositions on the energy consumption of pulping were evaluated by comparative analysis.

[0135] 2. Experimental method

[0136] (1) Test material

[0137] Fiber oxidase (PMO) is produced from the strain Myceliophthora thermophila, and its amino acid sequence is described in detail in US Patent No. 8,298,795 and US Patent Application USA2012 / 0083019.

[0138] The cellulolytic enzyme is the commercial product FiberZymeG200 of Dyadic Company.

[0139] (2) Pulping wood chip preparation: A paper mill uses southern pine wood to make TMP. The wood is debarked, cut into wood chips by a slicer, and enters the wood chip storage warehouse or stacking yard.

[0140] (3) Biological enzyme treatment: Before the wood chips enter the storage bin, the biological enzymes o...