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Method for producing ethanol by wild plant starch resource as acorn starch for substituting for grain

A technology of wild plant starch and acorn starch, applied in the field of utilization of wild plant starch resources

Inactive Publication Date: 2007-12-12
周彦春 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] At present, there is no report on the use of acorns as ethanol. The development and promotion of acorns as drinking alcohol has been a matter of the 1950s, but it has not continued due to various reasons.

Method used

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  • Method for producing ethanol by wild plant starch resource as acorn starch for substituting for grain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, prepare the former powder milk of acorn

[0037]According to the size of the harvested acorns, they are screened into different grades, and the bowl covers and shells are removed. Wash with water to remove impurities, and break into 2-5mm acorn kernel particles. Soak with an aqueous solution containing 0.2-0.6% sulfite at a temperature of 45-50°C for 64-72 hours. The number of soaking times is 6-8 times. The drained soaking liquid recovers the tannins. The soaked acorn particles are wet-milled and finely ground to obtain raw acorn powder milk with less tannin content.

Embodiment 2

[0038] Embodiment 2, adopt counter-current immersion method to prepare former acorn powder milk

[0039] According to the size of the harvested acorns, they are screened by grade, and the bowl cover and shell are removed. Wash with water to remove impurities, and break into 2-5mm acorn kernel particles. Adopt countercurrent soaking method, soak with aqueous solution containing 0.2-0.6% sulfurous acid or salt, soak at 45-50 DEG C, soak for 64-72 hours. Newly added acorns are in contact with the longest-soaked infusion; longest-soaked acorns are in contact with the newly added infusion. Discharge until the tannin content in the acorn particles reaches the standard. The drained infusion is concentrated to recover tannins. The soaked acorn particles are wet-milled finely to obtain raw acorn powder milk with very low tannin content.

Embodiment 3

[0040] Embodiment 3, prepare acorn starch milk

[0041] Adopt the raw acorn powder milk obtained in Example 2, sieve out fiber through 150-200 mesh, separate by-products such as protein by centrifugal method or air flotation method, obtain refined acorn starch milk through centrifuge and cyclone washing machine washing .

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Abstract

The invention relates to a method for preparing alcohol through saccharifying with wild plant starch resources such as acorn. It employs adverse current immersion method, continuous fermentation and raw material absorption dehydrolysis method. Said adverse current immersion method increases removing efficiency; continuous fermentation combines fermentation unit and distill units into one integrated processing device, and strengthens reaction kinetic effect; raw material absorption dehydrolysis method employs acorn powder or starch to prepare waterless alcohol through dehydrolysis, regeneration is avoided, which saves energy consumption. The biological renewable energy can reduce environmental pollution effectively, alleviating energy crisis, and saves grain. The gasoline fuel ethanol is prepared by using non- grain crop, which belongs to agricultural and forest products. The ethanol can be produced in large- scale, which reduces production cost and increase farmers income. So it is of great importance for developing clean energy by using wild plant.

Description

Technical field: [0001] The invention relates to utilization of wild plant starch resources, deep processing of agricultural and forestry products, biological engineering, large-scale industrial production of ethanol, and gasoline fuel ethanol. Background technique: [0002] With the continuous rise of international fuel prices, energy shortages and the promotion and use of fuel ethanol, the fuel ethanol industry has obtained a great opportunity for development. From the analysis of resources, technology and economy, the time for my country to develop the biomass energy industry is basically ripe, and the pace of development needs to be accelerated. And biomass energy can effectively reduce pollution. Compared with ordinary gasoline, after using ethanol gasoline for vehicles, carbon monoxide emissions can be reduced by 7%, and hydrocarbons can be reduced by 48%. At the same time, the toxic smoke and organic components emitted by ethanol fuel are much lower than gasoline emi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/06A23K1/06A23K10/38
CPCY02E50/17Y02E50/10Y02P20/59Y02P60/87
Inventor 周彦春周彦文
Owner 周彦春
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