Fiber oxidase composition for changing and improving properties of fibers, paper making method and application

A technology of fiber oxidase and composition, applied in the direction of oxidoreductase, textiles and papermaking, biochemical equipment and methods, etc., can solve the problems of reducing pulping freeness, reducing fiber yield, increasing paper density, etc., to achieve increased Effects of fiber reactivity, reduction of refining performance, and modification of beating performance

CN104178474AActive Publication Date: 2014-12-03RISINGSTAR BIOTECH GUANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-12-03

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Abstract

The invention discloses a fiber oxidase composition for changing and improving the properties of fibers, a paper making method and application. The composition contains the following ingredients: a bio-enzyme ingredient and an auxiliary ingredient, wherein the bio-enzyme ingredient has an oxidation function on the fibers and is fiber oxidase which is used for changing the surface properties of the fibers through redox reaction; the auxiliary ingredient has the function of improving the catalytic activity of the fiber oxidase and is a fiber oxidase reaction product scavenger; the weight ratio of the bio-enzyme ingredient to the auxiliary ingredient is 1: (0.1-50). When the composition is used for treating paper pulp, not only is the strength property of paper remarkably enhanced, but also the draining property of the paper pulp is 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

[0074] Example 1 Effect of fiber oxidase and its different compositions on paper strength of bleached hardwood pulp

[0075] 1. Purpose of the experiment

[0076] The effects of fiber oxidase and its composition on the paper strength of bleached hardwood pulp were evaluated by comparative analysis.

[0077] 2. Experimental method

[0078] (1) Test material preparation

[0079] Bleached broadleaf chemical pulp is provided by the pulp mill of Shandong Wanguo Paper Industry No. 26.

[0080] Fiber oxidase (PMO) is GH61 provided by American Dyadic Company. This enzyme is produced from the strain Myceliophthora thermophila9 (also known as Sporotrichum thermophile). Its amino acid sequence is described in detail in US Pat.

[0081] The cellulolytic enzyme is the commercial product FiberZymeG200 of Dyadic Company, which is produced by the same bacterial strain as above. Other chemicals were purchased from SigmaAldrich.

[0082] (2) Papermaking method

[0083] A, pulping: 200 gra...

Embodiment 2

[0103] Example 2 Effect of fiber oxidase and its different compositions on paper strength of mechanical softwood pulp

[0104] 1. Purpose of the experiment

[0105] The effects of fiber oxidase and its different compositions on mechanical softwood pulp on its paper strength were evaluated by comparative analysis.

[0106] 2. Experimental method

[0107] (1) Test material preparation

[0108] The mechanical softwood pulp was supplied by the pulp mill of Shandong Wanguo Paper Industry No. 26.

[0109] 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.

[0110] The cellulolytic enzyme is the commercial product FiberZyme G200 of Dyadic Company, which is produced by the same bacterial strain as above.

[0111] (2) Papermaking method

[0112] A, pulping: 200 grams of pul...

Embodiment 3

[0131] Example 3 Effect of fiber oxidase and its composition on paper strength of unbleached chemical softwood pulp

[0132] 1. Purpose of the experiment

[0133] The effects of fiber oxidase and its different compositions on the paper strength of unbleached chemical softwood pulp were evaluated by comparative analysis.

[0134] 2. Experimental method

[0135] (1) Test material preparation

[0136] Unbleached chemical pulp (softwood pulp) was provided by Zhejiang Rongcheng Paper Industry.

[0137] 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.

[0138] The cellulolytic enzyme is the commercial product FiberZyme G200 of Dyadic Company, which is produced by the same bacterial strain as above.

[0139] (2) Papermaking method

[0140] A, pulping: 200 grams of pulp ...