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Steam exploded degumming technology of mulberry fiber and method for extracting functional components thereof

A mulberry fiber and steam explosion technology is applied in the field of mulberry fiber steam explosion degumming process and extraction of functional components, which can solve the problems of high cost, chemical degumming process pollutes the environment, and biological degumming process time is long, and achieves economical efficiency. promising effect

Inactive Publication Date: 2009-09-02
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] [purpose of the present invention] the purpose of the present invention is to overcome the chemical degumming process polluting the environment and the shortcoming of biological degumming process long time, high cost, degumming rate, to provide a kind of clean production process of mulberry fiber steam explosion degumming, simultaneously to wherein Effective extraction of soluble functional components enables the comprehensive utilization of waste mulberry bark resources, which has greater social and economic benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: (1) steam explosion: the mulberry branch that collects is boiled and then peeled off, and then the mulberry bark is subjected to steam explosion treatment under a pressure of 1.0MPa for 5min;

[0018] (2) Functional component extraction: reclaim the steam explosion raffinate produced after the steam explosion treatment, and simultaneously wash the raw material after the steam explosion to reclaim the functional component adsorbed on the fiber surface, and merge the steam explosion raffinate and washing liquid; then The resulting liquid is separated and purified to obtain various functional components.

[0019] (3) Steam-exploded mulberry bleaching: two-stage bleaching technology is adopted, and the composition of the first-stage bleaching solution is: 1% Na 2 SiO 3 , 2% H 2 o 2 , 2% NaOH, the composition of the second bleaching solution is: 1% Na 2 SiO 3 , 1% H 2 o 2 , 1% NaOH, all bleached at 70°C for 2 hours, solid-liquid ratio: 1 / 20.

[0020] (4...

Embodiment 2

[0024] Embodiment 2: (1) stock preparation and steam explosion: the mulberry branches collected are boiled and then peeled off, and then the mulberry bark is subjected to steam explosion treatment under pressure of 1.5MPa for 2min;

[0025] (2) Functional component extraction: reclaim the steam explosion raffinate produced after the steam explosion treatment, and simultaneously wash the raw material after the steam explosion to reclaim the functional component adsorbed on the fiber surface, and merge the steam explosion raffinate and washing liquid; then The resulting liquid is separated and purified to obtain various functional components.

[0026] (3) Steam-exploded mulberry bleaching: two-stage bleaching technology is adopted, and the composition of the first-stage bleaching solution is: 1% Na 2 SiO 3 , 2% H 2 o 2 , 2% NaOH, the composition of the second bleaching solution is: 1% Na 2 SiO 3 , 1% H 2 o 2 , 1% NaOH, all bleached at 70°C for 2 hours, solid-liquid ratio:...

Embodiment 3

[0029] Embodiment 3: (1) material preparation and steam explosion: the mulberry branches collected are boiled and then peeled off, and then the mulberry bark is subjected to steam explosion treatment under a pressure of 1.5MPa for maintaining pressure for 5min;

[0030] (2) Functional component extraction: reclaim the steam explosion raffinate produced after the steam explosion treatment, and simultaneously wash the raw material after the steam explosion to reclaim the functional component adsorbed on the fiber surface, and merge the steam explosion raffinate and washing liquid; then The resulting liquid is separated and purified to obtain various functional components.

[0031] (3) Steam-exploded mulberry bleaching: two-stage bleaching technology is adopted, and the composition of the first-stage bleaching solution is: 1% Na 2 SiO 3 , 2% H 2 o 2 , 2% NaOH, the composition of the second bleaching solution is: 1% Na 2 SiO 3 , 1% H 2 o 2 , 1% NaOH, all bleached at 70°C fo...

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Abstract

The invention pertains to the field of the utilization of bast fiber resources and particularly relates to a steam exploded degumming technology of mulberry fiber and a method for extracting functional components thereof. Firstly, a steam exploded technology is adopted to degrade hemicellulose, lignin and pectin sections in mulberry; and then the mulberry is washed with water to cause soluble functional components thereof to dissolve and then separation and purification are carried out to water lotion to obtain flavonoids and Xyol-Oligosaccharides. The washed steam exploded raw materials are bleached, fed with oil, dried, opened and scotched and carded to obtain pure white and loose mulberry fiber with high quality. The steam exploded degumming not only reduces industrialization costs and is beneficial to the extraction of the functional components, but also is clean and environmentally-friendly. The technology and the method open a new way for degumming mulberry and provide a new idea for the comprehensive utilization of mulberry resources.

Description

technical field [0001] The invention belongs to the field of bast fiber utilization, in particular to a steam explosion degumming process of mulberry fiber and the extraction of functional components thereof. Background technique [0002] Mulberry belongs to the genus Moraceae. my country is the earliest country in the world to plant mulberry and raise silkworms, and the collected and preserved mulberry germplasm belongs to 15 mulberry species and 3 varieties. It is the country with the most mulberry species in the world. Among them, the cultivated species include Lusang, white mulberry, Guangdong mulberry, Ruisui mulberry; wild mulberry species include long spike mulberry, long fruit mulberry, black mulberry, Hua mulberry, fine-toothed mulberry, Mengsang, mountain mulberry, Chuan mulberry, Tanggui mulberry , Dian mulberry, and chicken mulberry; variants include ghost mulberry (a variant of Meng mulberry), big leaf mulberry (a variant of white mulberry), and weeping mulberry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/02D06L3/02C07D311/22C07H3/06C07H15/207D06L4/12D06L4/13
Inventor 陈洪章张建兴张思婧
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI