Biological bamboo cellulose extraction method

A bamboo cellulose and extraction method technology, applied in the field of biotechnology and cellulose extraction, can solve the problems of steam explosion method, environmental pollution, high equipment requirements, etc., and achieve the effect of simple process, small environmental pollution and simple steps

Inactive Publication Date: 2020-04-07
江西吉润花炮新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN108660836A provides a method of extracting cellulose by using straw. In this method, the straw is crushed first and then mixed with lye, and then the mixed solution is subjected to steam explosion treatment, and finally chlorinated Pyridine aqueous solution is processed to obtain cellulose. The steam explosion method used in this method requires professional equipment, the production cost is high,

Method used

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  • Biological bamboo cellulose extraction method
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  • Biological bamboo cellulose extraction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] According to the following formula mass ratio, the following components are dissolved in water to make 5L cellulose extractant;

[0038]

[0039]

[0040] According to the components of Aspergillus aculeatus culture medium, 30 g of sucrose, 15 g of agar, 0.01 g of ferrous sulfate, 0.5 g of potassium chloride, and 3 g of sodium nitrate were dissolved in distilled water to prepare 1 L of culture medium, and the pH value was adjusted to 7.0. Put the prepared medium into a shaker flask and sterilize at 0.15Mpa at 120°C for 15 minutes; after the sterilization is complete, inoculate Aspergillus aculeatus into the medium, shake at 140r / min, and culture at 36°C for 15 hours , prepared into a shake flask bacterial solution. Take 120g of sucrose, 2g of magnesium sulfate, 6g of potassium dihydrogen phosphate, 3g of ammonium sulfate, 1g of potassium chloride, 3g of potassium nitrate, 1g of calcium chloride, 8g of yeast extract, and 5.4g of naringin according to the compositio...

Embodiment 2

[0045] According to the following formula mass ratio, the following components are dissolved in water to make 10L cellulose extractant;

[0046]

[0047] According to the components of Aspergillus aculeatus culture medium, take 40 g of sucrose, 18 g of agar, 0.02 g of ferrous sulfate, 0.6 g of potassium chloride, and 4 g of sodium nitrate in distilled water to prepare 1 L of culture medium, and adjust the pH to 7.0. Put the culture medium into a shake flask and sterilize it at 0.15Mpa at 120°C for 20 minutes; inoculate Aspergillus aculeatus into the culture medium, shake it at 140r / min at 36°C for 15 hours, and prepare the shake flask bacterial liquid . Take 240g of sucrose, 3g of magnesium sulfate, 12g of potassium dihydrogen phosphate, 6g of ammonium sulfate, 1.5g of potassium chloride, 4.5g of potassium nitrate, 1.5g of calcium chloride, 21g of yeast extract, and 9g of naringin according to the components of the fermentation medium. Dissolve in distilled water to config...

Embodiment 3

[0052] According to the following formula mass ratio, the following components are dissolved in water to make 15L cellulose extractant;

[0053]

[0054] According to the components of Aspergillus aculeatus culture medium, 50 g of sucrose, 20 g of agar, 0.03 g of ferrous sulfate, 0.8 g of potassium chloride, and 5 g of sodium nitrate were dissolved in distilled water to prepare 1 L of culture medium, and the pH value was adjusted to 7.0. Put the medium into a shaker flask and sterilize at 0.15Mpa at 120°C for 15 minutes; inoculate Aspergillus aculeatus into the sterilized medium, shake it at 140r / min at 36°C for 15 hours, and prepare Shake flask broth. According to the composition of the fermentation medium, take 480g of sucrose, 4g of magnesium sulfate, 20g of potassium dihydrogen phosphate, 12g of ammonium sulfate, 2g of potassium chloride, 6g of potassium nitrate, 2g of calcium chloride, 40g of yeast extract, and 12g / L of naringin. Prepare 4L of fermentation medium in d...

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Abstract

The invention relates to a biological bamboo cellulose extraction method, and belongs to the field of biotechnology and cellulose extraction. The biological bamboo cellulose extraction method comprises following steps: reparing a cellulose extracting agent from water, sodium bicarbonate, ammonium tartrate, lauryl alcohol polyoxyethylene ether, calcium chloride, ammonia water, hydrogen peroxide, urea, lauryl sodium sulfate and polyoxyethylene sorbitan fatty acid ester-80; mixing a crude enzyme solution A and a crude enzyme solution B to obtain a mixed enzyme solution; removing leaves of moso bamboos, splitting, cleaning, cutting off, and boiling with water; crushing the treated moso bamboos to obtain moso bamboo powder; mixing and soaking the bamboo powder and the cellulose extracting agent, heating, carrying out solid-liquid separation, and collecting filter residues; adding the filter residues into the mixed enzyme solution for soaking; and carrying out solid-liquid separation on thesoaked bamboo powder, collecting filter residues, cleaning the filter residues with deionized water, and carrying out high-temperature drying to obtain bamboo cellulose. The biological bamboo cellulose extraction method is simple and feasible, cellulose is extracted from moso bamboos by using a biological method, the impurity content is low, and high energy consumption and environmental pollutionare avoided.

Description

technical field [0001] The invention relates to a method for extracting biological bamboo cellulose, which belongs to the field of biotechnology and cellulose extraction. Background technique [0002] Forest resources and agricultural resources are the most important resources related to people's livelihood in our country, and they are of various types and varieties. Among them, bamboo resources are one of the most widely distributed resources. my country has more than 400 kinds of bamboo plants, accounting for one-third of the world's bamboo resources. The existing bamboo forest area is about 5.4 million hectares, accounting for 2.8% of the national forest area. At present, bamboo resources are mainly used in the processing of bamboo shoots, the production of bamboo woven products such as bamboo mats and blankets, the manufacture of bamboo charcoal materials and bamboo composite materials, and many other fields. Bamboo fiber is a kind of natural fiber directly extracted ...

Claims

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Application Information

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IPC IPC(8): D21C5/00D21C3/00D21C3/02C12N9/00
CPCC12N9/00D21C3/003D21C3/02D21C3/024D21C5/005
Inventor 刘吉平李琪军刘克普吉伟生于保藏周耀明
Owner 江西吉润花炮新材料科技有限公司
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