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Preparation of alcohol fermentation liquid

A technology of alcohol fermentation liquid and fermenter, which is applied in the direction of fermentation, biofuel, etc. It can solve the problems of difficult control of the preparation process and low productivity, and achieve energy saving for cooking, saving usage, saving energy consumption and cooling water consumption Effect

Inactive Publication Date: 2009-06-24
贾鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production of alcohol by fermenting raw powder with enzymes is still in the research and development stage, and the existing methods still have the disadvantages of low productivity and difficult control of the preparation process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] A method for preparing an alcoholic fermentation liquid, which is special in that it comprises the following steps

[0023] 1) Milling slurry

[0024] Take some starchy raw materials and pulverize them, then add water and stir evenly to obtain a powder slurry. The powder-to-water ratio of the powder slurry is 1:1.5 to 1:4;

[0025] 2) Prepare the reactant

[0026] Prepare a reaction agent, the enzyme preparation includes yeast, glucoamylase and auxiliary enzyme preparation, based on the amount of starchy raw materials, the amount of the yeast is 0.01-0.3%, the amount of the glucoamylase is 50-400u / g, the amount of the auxiliary enzyme preparation is 0-0.3%;

[0027] 3) Preparation of alcoholic fermentation liquid

[0028] Pour the evenly stirred slurry into the fermenter, then add the reactant to the fermenter, control the temperature at 25-35°C, control the stirring speed of the fermenter at 0-300 rpm, and react for 60-110 hours Obtain alcoholic fermentation liqui...

Embodiment 1

[0037] Take 1 kg of corn flour, the ratio of flour to water is 1:3, 0.1% of Saccharomyces cerevisiae high activity dry yeast (based on raw materials, the same below), glucoamylase 250u / g (based on raw materials, the same below), mix well, Seal the tank, stir at 150 rpm, ferment at 25-35°C for 84 hours, the alcohol content of the fermentation broth is 13.9% (v / v, at 20°C, the same below), and the starch utilization rate is 93.1% (based on 100% alcohol, The same below).

Embodiment 2

[0039] Take 1 kg of corn flour, the ratio of flour to water is 1:3.5, 0.3% of Saccharomyces cerevisiae high activity dry yeast (based on raw materials, the same below), glucoamylase 400u / g (based on raw materials, the same below), mix well, Seal the tank, stir at 0 rpm, ferment at 25-35°C for 60 hours, the alcohol content of the fermentation broth is 11.2% (v / v, at 20°C, the same below), and the starch utilization rate is 91.3% (based on 100% alcohol, The same below).

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PUM

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Abstract

The invention relates to a method for preparing alcoholic fermentation liquor by means of fermenting a starch bearing material with a little amount of enzyme. The method comprises the following steps: a certain number of the starch bearing materials are crashed, added with water and stirred evenly to obtain powder syrup; a reactant is prepared, the evenly-stirred powder syrup is poured into a fermentor; the reactant is added into the fermentor. Under the conditions that the temperature is controlled between 25-35 DEG C and the stirring revolution of the fermentor is controlled between 0-300 revolution / minute, the alcoholic fermentation liquor is obtained after the reaction for 60-10 hours. The invention aims at providing the method of preparing the alcoholic fermentation liquor. The alcoholic prepared by the method of the invention has the advantages that the productivity is high, the preparation process is simple, and the operation and control is easy.

Description

technical field [0001] The invention relates to a method for preparing an alcoholic fermentation liquid, in particular to a method for preparing an alcoholic fermentation liquid by fermenting starchy raw materials with a small amount of enzymes. Background technique [0002] Alcohol is an important industrial raw material. Alcohol is used in the food industry, chemical industry, medical and pharmaceutical industries, etc. Alcohol is also an important way for the deep processing of agricultural products. With the depletion of natural resources such as oil, the use of bio-renewable energy such as alcohol as an alternative fuel has attracted the attention of many countries. Japan intends to develop a new way to produce alcohol from biomass, Brazil plans to promote alcohol action faster, Thailand has an ecological car driven by alcohol, and the United States plans to use forest pruning for alcohol production. However, due to the high production cost of alcohol, it has not been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06
CPCY02E50/17Y02E50/10
Inventor 贾鹏
Owner 贾鹏