Clean producing technique for extracting saponin from turmeric and coproducing fuel ethanol

A clean production, fuel ethanol technology, applied in the fields of biofuels, steroids, organic chemistry, etc., can solve the problems of high energy consumption and low saponin yield, reduce waste water discharge, easy industrialization and large-scale scale The effect of optimistic production and sales prospects

Inactive Publication Date: 2008-06-04
邱建勋 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this production process can reduce the amount of waste water produced and reduce the load of terminal treatment, there are problems such as low yield of saponin and high energy consumption in this process.

Method used

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  • Clean producing technique for extracting saponin from turmeric and coproducing fuel ethanol
  • Clean producing technique for extracting saponin from turmeric and coproducing fuel ethanol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Wash fresh turmeric (or dried turmeric after soaking in water) to remove impurities, grind it into a slurry (containing fiber), control the particle size to <2mm, put it in a mixing tank with a stirrer, heat and preheat to 65°C, press 1.5u Add high-temperature-resistant α-amylase to / g turmeric twice, add 30% of the total amount for the first time, heat up to 90°C, and cook for 30 minutes. Then enter the jet liquefier for jet liquefaction, control the temperature in the jet to 104°C, and stay for 10 minutes. The mash after the first liquefaction is flashed in a vacuum flash tank to cool down to 90°C, put into the liquefaction tank, and add The remaining high-temperature-resistant α-amylase was liquefied for the second time, and the control time was 100 minutes. Cool the liquefied mash to 60°C, adjust the pH to 4.5 with sulfuric acid, add glucoamylase for saccharification, and control the time for 20 minutes.

[0031] Put the saccharification mash into the fermentation ...

Embodiment 2

[0035] Wash fresh turmeric (or dried turmeric after soaking in water) to remove impurities, grind it into a slurry (containing fiber), control the particle size to <2mm, put it in a mixing tank with a stirrer, heat and preheat to 65°C, press 1.5u Add high-temperature-resistant α-amylase to / g turmeric twice, add 30% of the total amount for the first time, heat up to 90°C, and cook for 30 minutes. Then enter the jet liquefier for jet liquefaction, control the temperature in the jet liquefier to 104°C, and stay for 10 minutes. The mash after the first liquefaction is flashed and cooled to 90°C in a vacuum flash tank, and put into the liquefaction tank. Add the remaining high-temperature-resistant α-amylase for the second liquefaction, and control the time for 100 minutes. Cool the liquefied mash to 60°C, adjust the pH to 4.5 with sulfuric acid, add glucoamylase for saccharification, and control the time for 20 minutes.

[0036] Filtrate the fiber-containing mash to obtain sugar...

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Abstract

The invention relates to a clean manufacturing technique for co-production of fuel ethanol by extracting saponins from turmerics. The technological process of the invention is that: the fuel ethanol is produced after washing and decontamination, pulverization, liquefaction and saccarification of fresh turmerics or dry turmerics after being infused in water, and fermentation, evaporation and distillation, and dehydration of sweet mash (or filtrate obtained after filtration of the sweet mash); and the saponins are produced after acid hydrolysis of thick mash generated by evaporation (or the thick mash generated by evaporation and filter residue generated by filtration of the sweet mash), filtration (filtrate goes back for acid hydrolysis liquid preparation), drying of filter residue, gasoline extraction, condensation and crystallization, whirling and drying. Compared with the prior manufacturing technique of saponins, the clean manufacturing technique for co-production of fuel ethanol by extracting saponins from turmerics of the invention can improve saponin yield by 20 to 30 percent, reduce acid dosage by over 70 percent and reduce waste water output by over 80 percent, and the sales market of the byproduct - fuel ethanol is optimistic.

Description

technical field [0001] The invention relates to a clean production process for extracting saponin from turmeric and co-producing fuel ethanol, and belongs to the technical field of pharmaceutical intermediate production. Background technique [0002] At present, domestic manufacturers who extract saponin from turmeric mostly use the traditional production process, that is, fresh turmeric→washing→crushing→natural fermentation→acid hydrolysis→filtering and washing→drying→gasoline extraction→concentrated crystallization→centrifugal drying→drying →Saponin. The production process has low yield of saponin (about 0.7% of fresh turmeric), large amount of waste water (about 500 tons of waste water per ton of saponin), high concentration of waste water (comprehensive waste water COD 30000-40000mg / L), waste water High processing and operating costs (10-15 yuan / m 3 )And other issues. [0003] Domestic patents (application numbers: 02138773 and 03134450) propose to adopt the enzymolys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06C12P33/20C07J71/00
CPCY02E50/17Y02E50/10
Inventor 邱建勋毕亚凡梅明彭聃
Owner 邱建勋
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