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Method for improving reducing sugar content of straws

A technology of sugar content and straw, which is applied in the field of increasing the reducing sugar content of straw, can solve the problems of cellulase action limitation, restriction of effective biodegradation reaction, and difficult access of cellulase, so as to achieve short processing time and high enzymatic hydrolysis efficiency , the effect of simple operation

Inactive Publication Date: 2013-03-20
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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AI Technical Summary

Problems solved by technology

At present, the complex structure of straw and the crystalline region of cellulose limit the action of cellulase, and it is difficult for cellulase to enter it, which restricts the effective progress of biodegradation reactions.

Method used

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  • Method for improving reducing sugar content of straws
  • Method for improving reducing sugar content of straws
  • Method for improving reducing sugar content of straws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. The effect of irradiation dose on the sugar production rate of enzymatic hydrolysis of corn stalks

[0047] The specific method is:

[0048] The raw material straw was cut into 1 cm long pieces for irradiation, and then packed in 500ml airtight glass bottles, and irradiated at room temperature. The irradiation doses were 0, 50, 100, 200, 300, 500, 800 and 1000 kGy, respectively. The source intensity is 5.9×1015Bq, and the dose rate is 0.5kGy / h.

[0049] The results of different doses of irradiation on the structure, properties and reducing sugar content of corn stalks are as follows: figure 1 .

[0050] Depend on figure 1 It can be seen that the reducing sugar content of corn stalks has several changing areas after irradiation. When the radiation dose was 0-100kGy, the reducing sugar yield decreased slightly; when the radiation dose was 100-300kGy, the reducing sugar content increased slowly; when the radiation dose was 300-800kGy, the reducing sugar content inc...

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Abstract

The invention discloses a method for improving the reducing sugar content of straws. The method comprises the following steps of: crushing the straws, wherein the granularity of the crushed straws is 20-180 meshes; irradiating the straws, wherein the accelerative irradiation dose is 50-1000kGy and is 200-800kGy preferably, the radiation dose rate is 0.5kGy / h, and an irradiation source is a 60Co-gamma ray irradiation source; and carrying out enzymolysis on the straws, then soaking the straws subjected to enzymolysis in a water solution of alkali to obtain a mixed solution and placing the mixed solution at room temperature. The method disclosed by the invention has the unique advantages of being simple to operate and short in required processing time, remarkably increasing the sugar yield and being environmentally-friendly.

Description

technical field [0001] The invention relates to a method for increasing the reducing sugar content of straw. Background technique [0002] At present, with the rapid development of industrial economy, traditional energy consumption is gradually increasing. According to the current rate of extraction and consumption, oil, natural gas and coal reserves can only supply human beings for several decades. On the other hand, with the extensive use of traditional energy sources, the problem of environmental pollution has become more and more serious, and human beings are facing the dual pressure of resource shortage and environmental pollution. In order to effectively deal with this global problem, more and more countries are focusing on the development and utilization of renewable energy (A.J.Ragauskas, 2006). [0003] At present, biomass energy has increasingly become a development hotspot due to its advantages of large resource stock and clean use (J.A.Antonius, 2006). Accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/14
Inventor 哈益明唐洪涛李伟明王锋李庆鹏周洪杰靳婧
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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