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A method of extracting and degumming banana fiber by steam explosion technology

A banana fiber and degumming technology, which is applied in the chemical post-processing of fibers, fiber treatment, textiles and papermaking, etc., can solve the problems of uneven strength of banana fibers, low average breaking strength, and inconspicuous removal. The effect of printing quality, improving yield and reducing residual glue rate

Active Publication Date: 2018-05-11
HAIKOU EXPERIMENTAL STATION CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the banana fiber is basically leached with alkaline solution and degummed by steam explosion technology. The removal of hemicellulose and lignin is not obvious, which easily leads to uneven strength and low average breaking strength of the prepared banana fiber. And other issues

Method used

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  • A method of extracting and degumming banana fiber by steam explosion technology
  • A method of extracting and degumming banana fiber by steam explosion technology
  • A method of extracting and degumming banana fiber by steam explosion technology

Examples

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Effect test

Embodiment 1

[0029] A method utilizing steam explosion technology to extract and degumming banana fiber, comprising the following steps:

[0030] 1) Steam explosion extraction: Take fresh banana stalks and leaves, cut them, put them in a steam explosion tank, hold them under a steam explosion pressure of 1.7Mpa for 70s, release them instantly, wash them with water and dehydrate them to obtain banana crude fibers.

[0031] 2) Pre-acid treatment: soak the banana crude fiber in an acid solution with a concentration of 0.5%, and carry out high-temperature cooking with a solid-to-liquid ratio of 1:15; Composition, and the weight ratio is 50:1:0.1, the penetrant is penetrant JFC-1.

[0032] 3) Washing: wash the crude banana fiber after high-temperature cooking in warm water at 20° C., the temperature of the high-temperature cooking is 80° C., and the time is 10 hours.

[0033] 4) Enzyme degumming: degumming treatment is carried out by using a compound enzyme, the compound enzyme is hemicellulas...

Embodiment 2

[0039] A method utilizing steam explosion technology to extract and degumming banana fiber, comprising the following steps:

[0040] 1) Steam explosion extraction: take fresh banana stalks and leaves, cut them, put them into a steam explosion tank, press them for 200s under a steam explosion pressure of 3.0Mpa, release them instantly, wash them with water and dehydrate them to obtain banana crude fibers.

[0041] 2) Pre-acid treatment: soak the banana crude fiber in an acid solution with a concentration of 2%, and carry out high-temperature cooking; the acid solution is composed of water, hydrochloric acid solution or dilute nitric acid solution and a penetrant Composition, and the weight ratio is 100:10:2, the penetrant is low foam penetrant SF.

[0042] 3) Washing: wash the crude banana fiber after high-temperature cooking in warm water of 50° C., the temperature of the high-temperature cooking is 100° C., and the time is 20 hours.

[0043] 4) Enzyme degumming: degumming tr...

Embodiment 3

[0049] A method utilizing steam explosion technology to extract and degumming banana fiber, comprising the following steps:

[0050] 1) Steam explosion extraction: take fresh banana stalks and leaves, cut them, put them into a steam explosion tank, press them for 100s under a steam explosion pressure of 2.0Mpa, release them instantly, wash them with water and dehydrate them to obtain banana crude fibers.

[0051] 2) Pre-acid treatment: soak the banana crude fiber in an acid solution with a concentration of 1%, and carry out high-temperature cooking; the acid solution is composed of water, hydrochloric acid solution or dilute nitric acid solution and a penetrant Composition, and the weight ratio is 70:5:0.5, the penetrant is penetrant JFC-1.

[0052] 3) Washing: wash the crude banana fiber after high-temperature cooking in warm water of 30° C., the temperature of the high-temperature cooking is 85° C., and the time is 12 hours.

[0053] 4) Enzyme degumming: degumming treatment...

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Abstract

The invention discloses a method of using a steam explosion technology to extract and degum banana fibers. The method comprises the following steps: (1) carrying out steam explosion extraction; (2) performing a pre-acid treatment; (3) cleaning; (4) carrying out enzymatic degumming; (5) carrying out steam explosion degumming; (6) performing primary bleaching; (7) performing secondary bleaching; and (8) carrying out a post treatment. At first a pre-acid treatment is carried out, and then biological enzymes and steam explosion are combined to effectively increase the yield of banana fiber. At the same time, the residual gum content of banana fibers is reduced, and thus the environment pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of plant fiber preparation, in particular to a method for extracting and degumming banana fiber by steam explosion technology. Background technique [0002] Banana fiber can be divided into banana stem fiber and banana leaf fiber. Banana leaf fiber is stored in the leaves of banana trees and belongs to leaf fiber; banana stem fiber is stored in the bast of banana tree and belongs to bast fiber; banana bast The main chemical component of banana bast is cellulose, followed by hemicellulose, lignin, pectin, water-soluble matter, fat wax, etc. It can be seen that although the cellulose content in banana bast is lower than that in flax and jute However, its content in banana bast is also about 60%. Compared with flax and jute, the content of hemicellulose and lignin in banana bast is higher, and the two account for 30% of the chemical composition of banana fiber Above, a large number of studies have shown that b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/00
CPCD01C1/00
Inventor 盛占武郑丽丽艾斌凌郑晓燕金志强
Owner HAIKOU EXPERIMENTAL STATION CHINESE ACAD OF TROPICAL AGRI SCI
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