Potato and method for alcoholic fermentation of residue produced during processing of same

A technology of alcohol fermentation and processing, applied in fermentation, biofuels, etc., can solve problems such as waste of resources, backward development of the potato industry, pollution, etc., and achieve the effect of maintaining ecological balance and alleviating energy shortages

Inactive Publication Date: 2009-11-04
周剑平
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Problems solved by technology

[0003] my country is rich in potatoes, which are extremely rich in the northern region. After more than 10 years of development, its annual output has reached 70 million tons. The potato planting area and total output both rank first in the world. However, the development of the potato industry is relatively backward, and it is still in the initial processing stage, it not only causes waste of resources, but also the starch wastewater and residues generated in the processing process have not been effectively treated and caused environmental pollution.

Method used

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  • Potato and method for alcoholic fermentation of residue produced during processing of same

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Embodiment 1

[0014] After the potatoes are cleaned, they are mixed with potato waste residues and ground into a slurry, in which the starch content is 17.2g / 100ml, and then liquefied and saccharified. The amount of liquid amylase and glucoamylase added is 1g starch, 15u amylase and 150u glucoamylase, respectively. Insulate and saccharify at 62°C for 2 hours. After saccharification, add dipotassium hydrogen phosphate, magnesium sulfate and ammonium sulfate nutrient salts, the content of which is 0.05%, 0.035% and 0.1% of the total sugar solution, and then use active dry yeast or immobilized yeast Carry out alcoholic fermentation, fermentation temperature 28-35 ℃, fermentation time 36-48h.

[0015] The results showed that the alcohol content in the fermented mash reached 8.6% (v / v) after the fermentation.

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Abstract

The invention discloses a potato and a method for alcoholic fermentation of residue produced during processing of same. The method comprises the following steps: A, raw material processing: after being cleaned, the potato is mixed with potato residue to be ground into paste; B, liquefying and saccharifying: 1g of starch, 15u of amylase and 150u of maltogenic amylase are added, the amylase and the maltogenic amylase are liquefied and then saccharified and for 2h at constant 62 DEG C; nutrient salts of dipotassium hydrogen phosphate, magnesium sulfate and ammonium sulphate are added after the saccharification is finished, 0.05 percent of the nutrient salt of the dipotassium hydrogen phosphate, 0.035 percent of the nutrient salt of the magnesium sulfate and 0.1 percent of the nutrient salt of the ammonium sulphate are added; C, alcoholic fermentation: sweet mash is thrown into a fermentation tank for alcoholic fermentation by using active dry yeast or immobilized yeast at 28-35 DEG C for 36-48h. The invention can achieve the maximum biological energy conversion so as to relieve the energy scarcity.

Description

technical field [0001] The invention relates to a method for producing alcohol by using non-grain raw materials, in particular to a method for producing alcohol by using potatoes and residues produced during starch processing as raw materials. Background technique [0002] Energy issues are not only related to a country's rapid economic growth and sustainable social development, but also to national security and diplomatic strategies. Countries around the world such as the United States, the United Kingdom, Germany, India and Japan have successively issued "Energy Policy Acts", and my country is no exception. It has issued the "Eleventh Five-Year Development Plan for Biofuel Ethanol". The Special Plan and Industrial Policy further clarified the principles, direction and focus of industrial development, which clearly stipulates that my country will develop fuel ethanol with non-grain as raw materials in the future. [0003] my country is rich in potatoes, which are extremely ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C12P7/06C12P7/08
CPCY02E50/17Y02E50/10
Inventor周剑平孙智敏王治业祁宏山魏甲乾杨晖
Owner周剑平