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Comprehensive utilization method of sweet sorghum straw and juice thereof

A technology of sweet sorghum stalks and sweet sorghum, which is applied in the field of comprehensive utilization of sweet sorghum stalks and their juices, can solve the problems of restricting the extension and development of the sweet sorghum industry chain, low comprehensive utilization rate, and low comprehensive utilization degree, and improve the comprehensive utilization rate. Utilization value, water saving, good social and economic benefits

Active Publication Date: 2012-01-18
江苏联海生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the research and development and comprehensive utilization of sweet sorghum are relatively low. At present, the focus is on the production of ethanol or butanol from the juice extracted from its stalks. The comprehensive utilization rate of other components of sweet sorghum is low, and the production cost is high, which greatly limits the The extended development of the sweet sorghum industry chain urgently requires the development of comprehensive utilization technologies for sweet sorghum

Method used

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  • Comprehensive utilization method of sweet sorghum straw and juice thereof
  • Comprehensive utilization method of sweet sorghum straw and juice thereof

Examples

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Effect test

Embodiment 1

[0023] Such as figure 1 As shown, a method for comprehensive utilization of sweet sorghum stalks and their juices in the present invention comprises the following steps: first, take 5000 g of sweet sorghum stalks and use a three-roller juice extractor to squeeze the juice to obtain sweet sorghum stalk residue and sweet sorghum juice , the sweet sorghum straw slag was steam-exploded under the condition of 1.0MPa for 10 minutes to obtain steam-exploded straw liquid and steam-exploded straw; The straw liquid is combined, and then the steam-exploded straw liquid is filtered through an 80-mesh plate frame, and the filter residue is incorporated into the steam-exploded straw.

[0024] Enzymatically hydrolyze steam-exploded straw slag, the dosage of cellulase is 5FIU / g straw, carry out enzymatic hydrolysis at pH 4.8, temperature 50°C for 24 hours, and then carry out solid-liquid separation after enzymatic hydrolysis, the obtained enzymatic hydrolyzate and sweet sorghum juice Mix, th...

Embodiment 2

[0028] Such as figure 1 As shown, a comprehensive utilization method of sweet sorghum stalks and their juices of the present invention comprises the following steps: taking 5000g of sweet sorghum stalks and using a three-roller juice extractor to squeeze the juice to obtain sweet sorghum stalk residue and sweet sorghum juice, Sweet sorghum straw slag was steam-exploded for 5 minutes at a pressure of 1.5 MPa to obtain steam-exploded straw liquid and steam-exploded straw; the steam-exploded straw was washed with 20,000 ml of water at a water temperature of 60°C for 20 minutes. The eluate is combined with the steam-exploded straw liquid, and then the eluate from the steam-exploded straw is filtered through an 80-mesh plate frame, and the filter residue is incorporated into the steam-exploded straw.

[0029] The steam-exploded straw residue was enzymatically hydrolyzed, the dosage of cellulase was 10FIU / g straw, and the enzymolysis was performed at pH 4.8 and temperature 50°C for ...

Embodiment 3

[0033] Such as figure 1 As shown, a comprehensive utilization method of sweet sorghum stalks and their juices of the present invention comprises the following steps: taking 5000g of sweet sorghum stalks and using a three-roller juice extractor to squeeze the juice to obtain sweet sorghum stalk residue and sweet sorghum juice, Sweet sorghum straw slag was steam-exploded for 15 minutes at a pressure of 2 MPa to obtain steam-exploded straw liquid and steam-exploded straw; the steam-exploded straw was washed with 10,000 ml of water at a temperature of 58°C for 35 minutes. The eluate is combined with the steam-exploded straw liquid, and then the eluate from the steam-exploded straw is filtered through an 80-mesh plate frame, and the filter residue is incorporated into the steam-exploded straw.

[0034] The steam-exploded straw residue was enzymatically hydrolyzed, the dosage of cellulase was 8FIU / g straw, and the enzymolysis was carried out at pH 4.8 and temperature 45°C for 40 hou...

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Abstract

The invention discloses a comprehensive utilization method of sweet sorghum straw and juice thereof, which comprises the following steps: juicing sweet sorghum straw, separating the juice from straw residues, performing steam explosion of the sweet sorghum straw residues to obtain steam exploded straw and a steam exploded straw eluate; performing enzymatic hydrolysis of the steam exploded straw, mixing with the sweet sorghum juice, controlling the sugar content to be 6%-7%, adding a nitrogen source, performing acetone butanol fermentation to produce acetone, butanol and ethanol; inoculating bacteria into the fermentation residues to produce feed protein; performing decoloration, detoxification, and enzymatic hydrolysis of the steam exploded straw eluate to extract xylo-oligosaccharides. The invention realizes graded utilization of saccharides, cellulose and hemicellulose in sweet sorghum, can produce xylo-oligosaccharides, and can produce fermentation products such as acetone, butanol, ethanol, feed protein and the like through biotransformation. The invention realizes the comprehensive utilization of sweet sorghum straw resources, has no waste material or pollutant discharge during the production, realizes cleaner production, and has good social benefit and economic benefit.

Description

technical field [0001] The invention relates to a comprehensive utilization method of sweet sorghum stalks and juice thereof, and belongs to the field of utilization of straw resources. Background technique [0002] Acetone and butanol are excellent organic solvents and important basic chemical raw materials. A series of chemical products can be synthesized with acetone and butanol as raw materials. They are widely used in chemical, pharmaceutical and other fields. Butanol is also a new type of biological material with great potential. Fuel will be the most ideal biofuel to replace gasoline in the future. [0003] Acetone-butanol fermentation is a traditional bulk fermentation, which was once the second largest fermentation process in the world after alcoholic fermentation. From the early days of the founding of the People's Republic of my country, corn flour was used for industrial production of acetone-butanol fermentation, and a stable fermentation process was formed at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/16C12P7/36C12P7/10C12P19/14C12P21/00C12R1/145C12R1/72C12R1/74C12R1/645
CPCY02E50/16Y02E50/10
Inventor 温志明唐波
Owner 江苏联海生物科技有限公司
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