Method for preparing corn bract leaf fiber from bio-enzymes

A corn husk and biological enzyme technology, which is applied in the chemical post-processing of fibers, fiber processing, plant raw materials, etc., can solve the problems of high fiber strength, low fiber strength, and large fiber damage in corn husk, and achieve increased capillary effect. , The effect of fiber softness and small fiber damage

Active Publication Date: 2018-12-11
QIQIHAR UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the method of using chemical reagents to prepare corn husk fiber causes great damage to the fiber, the strength of the obtained fiber is low, the fiber is brittle and hard, and the softness is poor, the invention discloses a method for preparing corn husk fiber by using biological enzymes. The prepared corn husk fiber has high strength and good softness

Method used

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  • Method for preparing corn bract leaf fiber from bio-enzymes
  • Method for preparing corn bract leaf fiber from bio-enzymes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) select corn husks without mildew, clean, and pretreat the cleaned corn husks, the bath ratio is 1:50 (kg / L), the concentration of sodium hydroxide is 0.3wt%, and the concentration of sodium carbonate The concentration is 0.5wt%, the concentration of sodium polyphosphate is 0.5wt%, the treatment temperature is 100°C, the treatment time is 20min, and the treated corn husks are rinsed with water;

[0028] (2) carry out biological enzyme treatment to the corn husk pretreated in step (1), bath ratio is 1:50 (kg / L), the concentration of laccase is 0.5wt%, pH is 4.6, and treatment temperature is 45 ℃ , the treatment time is 5h, the treated corn bract fiber is rinsed with water, and dried;

[0029] (3) Soften the corn husk fiber of enzyme treatment in step (2), bath ratio is 1:20 (kg / L), amino silicone oil concentration is 6wt%, 40 ℃ of treatment temperature, treatment time 60min, then The softened corn husk fiber is dried.

Embodiment 2

[0031] (1) select corn husks without mildew, clean, and pretreat the cleaned corn husks, the bath ratio is 1:50 (kg / L), the concentration of sodium hydroxide is 0.3wt%, and the concentration of sodium carbonate The concentration is 0.5wt%, the concentration of sodium polyphosphate is 1wt%, the treatment temperature is 90°C, the treatment time is 25min, and the treated corn husks are rinsed with water;

[0032] (2) carry out biological enzyme treatment to the corn husk pretreated in step (1), bath ratio is 1:50 (kg / L), the concentration of laccase is 0.5wt%, pH is 5.0, and treatment temperature is 50 ℃ , the treatment time is 6 hours, the treated corn bract fiber is rinsed with water, and dried at 60° C.;

[0033] (3) Soften the corn bract fiber of enzyme treatment in step (2), bath ratio is 1:20 (kg / L), amino silicone oil concentration is 4wt%, 40 ℃ of treatment temperature, treatment time 60min, then The softened corn husk fiber is dried.

Embodiment 3

[0035] (1) select corn husks without mildew, clean, and pretreat the cleaned corn husks, the bath ratio is 1:50 (kg / L), the concentration of sodium hydroxide is 0.8wt%, and the concentration of sodium carbonate The concentration is 0.8wt%, the concentration of sodium polyphosphate is 0.5wt%, the treatment temperature is 85°C, the treatment time is 25min, and the treated corn husks are rinsed with water;

[0036] (2) carry out biological enzyme treatment to the corn husk pretreated in step (1), bath ratio is 1:50 (kg / L), the concentration of laccase is 0.5wt%, pH is 5.4, and treatment temperature is 55 ℃ , the treatment time is 5 hours, the treated corn bract fibers are rinsed with water, and dried at 60° C.;

[0037] (3) Soften the corn husk fiber of enzyme treatment in step (2), bath ratio is 1:20 (kg / L), amino silicone oil concentration is 6wt%, 40 ℃ of treatment temperature, treatment time 60min, then The softened corn husk fiber is dried.

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Abstract

The invention belongs to the technical field of renewable resource utilization, and particularly relates to a method for preparing corn bract leaf fiber from bio-enzymes. The method comprises the following steps of (1) performing pretreatment on corn bract leaves to obtain pretreated corn bract leaves; (2) performing bio-enzyme treatment on the corn bract leaves pretreated in the step (1) to obtain the corn bract leaf fiber subjected to enzyme treatment; (3) performing softening treatment on the corn bract leaf fiber subjected to enzyme treatment in the step (2); performing drying. The low-concentration sodium hydroxide, sodium carbonate and sodium polyphosphate mixed water solution is used for pretreating the corn bract leaves so that the corn bract leaves generate lubrication swelling effects; the fiber capillary effect is enhanced; the seepage effect of the bio-enzyme liquid in the subsequent step is promoted; the damage to the fiber is small; the high-intensity can be favorably obtained; the bio-enzymes can be used for favorably decomposing gum impurities in the corn bract leaves; the damage to the fiber is avoided; the bio-enzymes can decompose most lignin, so that the obtained fiber is softer.

Description

technical field [0001] The invention belongs to the technical field of renewable resources application, and in particular relates to a method for preparing corn husk fiber by using biological enzymes. Background technique [0002] Corn is the main food crop in my country, with a planting area of ​​24.4983 million hectares, ranking third among food crops. my country is rich in corn husk resources, and about 600 kg of corn husks can be harvested per hectare of corn. Corn husks are usually discarded or burned, which not only causes waste of resources, but also causes a series of environmental problems. The utilization of corn bracts is mainly weaving handicrafts at present, because the demand is small, it has not been promoted. Effective utilization of maize bracts is of great significance to alleviate the pressure on resources and environment in my country and promote sustainable economic development. Corn bract fiber is a natural cellulose fiber, which has excellent charac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00
CPCD01C1/00
Inventor 田英华
Owner QIQIHAR UNIVERSITY
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