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Hemp degumming method

A degumming method and hemp technology, applied in the field of degumming technology, can solve the problems of low strength of hemp fibers, long degumming period, low hemp yield, etc., and achieve the effects of improving the strength of hemp fibers, saving the heating process, and improving the hemp yield.

Inactive Publication Date: 2011-04-13
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a hemp degumming method in order to solve the problems of long degumming period, low hemp yield, high energy consumption and low strength of the produced hemp fiber in the existing warm water degumming method of hemp

Method used

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  • Hemp degumming method

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specific Embodiment approach 1

[0011] Specific embodiment 1: A cannabis degumming method according to the present embodiment can be realized according to the following steps: 1. Activation of strains for cannabis degumming: Escherichia coli HDDMG05 and Bacillus licheniformis HDDMM02 are treated in beef extract peptone at 30°C, respectively. Cultivate on the medium for 24 hours; 2. Primary seed culture: use an inoculation loop to pick the activated strains in step 1 and insert them into 200-500 mL of industrial expansion medium, and cultivate at 28-32 °C for 20-30 hours; 3. 、Secondary seed culture: insert the bacterial liquid after the first seed culture into 200~500L industrial expansion medium according to the volume fraction of 0.5%~2%, and cultivate at 28~32℃ for 20~30h ;Fourth and three-level seed culture: insert the bacterial liquid after the second-level seed culture into the 2-5t industrial expansion medium according to the volume fraction of 0.5%-2%, and cultivate it under the condition of 28-32 ℃ fo...

specific Embodiment approach 2

[0013] Specific embodiment 2: The difference between this embodiment and the specific embodiment 1 is that in step 2, the strains activated in step 1 are respectively picked with an inoculation loop and inserted into 250-400 mL of industrial expansion medium, and cultured at 30°C for 24 hours. . Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0014] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is that in step 3, the bacterial liquid after the first-level seed cultivation is connected to 250-400L industrial expansion according to the volume fraction of 1%-1.5% of the inoculum. cultured at 30°C for 24h. Other steps and parameters are the same as in the first or second embodiment.

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Abstract

The invention discloses a hemp degumming method and relates to a degumming process, in particular to a hemp degumming process. The invention aims at solving the problems that the existing hemp degumming process is long in degumming cycle, low in fiber percentage and great in energy consumption, and produced hemp fiber has low strength. The hemp degumming method comprises the following steps: 1) activating strains for hemp degumming; 2) culturing primary seeds; 3) culturing secondary seeds; 4) culturing three-stage seeds; and 5) adding the strains for degumming in a degumming pool containing hemp stems, and completing the hemp degumming when reaching the retting end point. The hemp degumming method can shorten the degumming cycle of the hemp stems, improve the fiber percentage of the hemp fiber, improve the strength of the hemp fiber, improve the quality of the hemp fiber and reduce the sewage discharge in hemp retting, and is applied to the production and processing field of the hemp fiber which is a raw material in textile industry.

Description

technical field [0001] The invention relates to a degumming process, in particular to a hemp degumming process. Background technique [0002] At present, the hemp degumming method adopted in my country is as follows: first, bundle the hemp stalks into small bundles with a diameter of 20 cm, and then put the bundled hemp stalks into the degumming tank with a loading density of 75-80 kg / m3, and then put the degumming tank into the degumming tank. After filling, heat the retting pond to the required temperature with steam. During the degumming process of cannabis, use steam to warm up once a day to the required temperature. The sensory method is used when judging the end point of retting. The sensory method mainly refers to the "stem pumping method": the hemp stem after retting is broken at one-third of the root of the hemp stem, which can remove the xylem from fibers. Partial extraction is to reach the end point of retting. [0003] The fermentation cycle of warm water degumm...

Claims

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Application Information

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IPC IPC(8): D01C1/04C12N1/20C12R1/19C12R1/10
Inventor 蔡柏岩凌宏志葛菁萍平文祥接伟光王贵宾江云飞
Owner HEILONGJIANG UNIV
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