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Hydrolytic treatment method of hemicellulose raw material

A hemicellulose and treatment method technology, which is applied in the field of hydrolysis treatment of hemicellulose raw materials, can solve the problems of low efficiency of hydrolysis equipment, cumbersome crushing, pickling, and many occupied sites, so as to save manpower and equipment, Save manpower and material resources, increase the effect of canning

Active Publication Date: 2012-07-18
唐传生物科技(厦门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the purposes of the present invention is to provide a method for hydrolysis of straw raw materials with high specific volume (pot filling density) in a pot, so as to solve the problem of low efficiency of hydrolysis equipment
[0010] Another object of the present invention is to provide a quick pickling method to solve the problem of pickling after potting, and further solve the problems of cumbersome crushing and pickling in the prior art, occupying a lot of space and low efficiency

Method used

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  • Hydrolytic treatment method of hemicellulose raw material
  • Hydrolytic treatment method of hemicellulose raw material
  • Hydrolytic treatment method of hemicellulose raw material

Examples

Experimental program
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Effect test

Embodiment 1

[0038] According to solid: liquid = 1: 10, add 1.8% sulfuric acid to the pulverized material, hydrolyze for 90min at 121°C, measure the total sugar and xylose of the hydrolyzate by HPLC, calculate the productive rate of total sugar and xylose according to the following formula, and use this Serve as a reference standard for comparison between different hydrolysis conditions.

[0039]

[0040]

[0041] Table 1 Total sugar and xylose yields of dilute acid hydrolyzates of different straw raw materials

[0042]

Embodiment 2

[0043] The method of embodiment 2 quick pickling of stalks

[0044] The main obstacle affecting the pickling speed is the air in the material. If the air inside the corncob tissue is removed, or the pressure of the pickling solution is extracted, and the acid is directly pressed into the inside of the corncob, the pickling efficiency should be accelerated. In this example, taking corn cobs with complete morphology as the object, the effects of four different pickling methods on pickling were compared and studied in a 50L hydrolysis tank. Method 1, pickling in vacuum, that is, evacuating the hydrolysis tank full of materials to -0.9Mpa, then injecting acid solution (1.5% sulfuric acid) to soak the materials, and maintaining normal pressure for pickling for a certain period of time. Method two, vacuum-pressure pickling. After vacuumizing the material, inject the acid solution, and directly use the pump to pressurize to 0.04Mpa for pickling for a certain period of time. Method ...

Embodiment 3

[0050] Example 3 Corn cob hydrolysis in a conventional pot

[0051] After obtaining a 50L hydrolysis tank with corncobs in a regular density pot, an applicable pickling method and basic hydrolysis conditions, a 1t hydrolysis tank was used for verification in this example.

[0052] 1t hydrolysis tank (stainless steel) single-tank corn cob (water content about 14%) 116-120kg, the pressure swing pickling process is basically the same as the conditions of the 50L tank. The specific process is: after charging, use a pump to inject acid solution (1.3% sulfuric acid) until the acid solution flows out of the overflow port, close the overflow valve and continue to pump the acid solution to 0.2MPa, and open the overflow valve to drain to 0.2MPa after maintaining pressure for 15 minutes. 0MPa, pump the acid solution to 0.2MPa for the second time and maintain the pressure for 45 minutes, open the overflow valve to drain to 0MPa, and pump the acid solution to 0.2MPa for the third time and ...

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Abstract

The invention discloses a hydrolytic treatment method of a hemicellulose raw material. The hydrolytic treatment method comprises the following steps of: firstly compressing a raw material before canning the raw material, putting the compressed raw material into a hydrolytic pot, pickling till saturating the raw material, and then hydrolyzing. According to the hydrolytic treatment method, lots of workload of smashing straws in the traditional method is omitted, and plenty of manual labor and material resource are omitted. Compared with the traditional manner of firstly pickling in a pickling tank and then getting out the raw material for canning, the hydrolytic treatment method has the advantages that the pickling tank is omitted, and enormous manual labor and equipment are omitted as the pickling and hydrolyzation are carried out in the hydrolytic pot.

Description

technical field [0001] The invention relates to a hydrolysis treatment method for hemicellulose raw materials, in particular to a hydrolysis treatment method for straw hemicellulose. Background technique [0002] Straw is the general term for the remaining stems, leaves, and ears of mature grass crops after harvesting seeds, and also includes bagasse after sugar extraction. Its main components include lignin, cellulose, and hemicellulose. These three components The approximate proportions of different crop straws are 30-50% of cellulose, 20-35% of hemicellulose, and 20-30% of lignin. Among them, the cellulose hydrolyzate is glucose (six-carbon sugar), the hemicellulose hydrolyzate is mainly xylose and arabinose (both are five-carbon sugar), and the lignin degradation products are a series of complex compounds containing benzene rings. [0003] The hemicellulose part of straw is easily hydrolyzed by dilute acid to generate hemicellulose hydrolyzate mainly composed of five-ca...

Claims

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Application Information

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IPC IPC(8): C13K1/02C13K13/00
Inventor 林卫军石国良覃香香杨成久肖忠明
Owner 唐传生物科技(厦门)有限公司
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