An anaerobic fungus and method for producing ethanol by using it to ferment wheat straw

A technology for fermenting wheat and producing ethanol, applied in the biological field, can solve the problems of low ethanol production and high cost, and achieve the effect of simple production process

Active Publication Date: 2019-05-03
GANSU ACAD OF SCI INST OF BIOLOGY
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Problems solved by technology

[0007] Another object of the present invention is to provide a method for producing ethanol by fermenting wheat straw with the above-mentioned anaerobic fungus, so as to solve the problems of low ethanol yield and high cost in existing methods

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  • An anaerobic fungus and method for producing ethanol by using it to ferment wheat straw

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Embodiment Construction

[0018] The present invention will be described in further detail below.

[0019] 1. Isolation and identification of yak rumen anaerobic fungi

[0020] 1.1 Materials

[0021] 1.1.1 Overview of sampling sites and collection of yak rumen fluid

[0022] The research site is located in Wushaoling Pasture, Tianzhu Tibetan Autonomous County, Gansu Province (102°47′13″E, 37°10′37″N), with an annual average temperature of -1-1.3°C, a maximum temperature of 26°C, and a minimum temperature of -30°C , the annual precipitation is 265-632mm, the altitude is 3100-3400m, it belongs to the cold plateau climate type, the temperature changes violently, the sunshine is strong, the rainfall is abundant, the plant growth period is about 120 days, and the alpine meadow is the main grassland type. Wild pastures include fescue, sedge, bluegrass, kobresia, Tibetan kobresia, kobresia zebras, Oxytropis chinensis, golden dewberry, villia, Polygonum viviparum and Kobresia capillifolia main dominant spec...

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Abstract

The invention discloses an anaerobic fungus and a method for producing ethanol by fermenting wheat straw with it, belonging to the field of biology. The anaerobic fungus (Piromyces sp.) Yak TZF, CGMCC NO: 13392 has the ability to produce ethanol in large quantities. The characteristics of the present invention are: 1. The production process of the method for producing ethanol by degrading wheat straw with anaerobic fungus of the present invention is more convenient, mainly to ensure the anaerobic environment. 2. The method of the present invention only needs to pulverize and air-dry the stalks, and does not need to peel the stalks. 3. The ethanol concentration produced by the method of the present invention is very high. Inoculate 5mL of anaerobic fungi to degrade wheat straw in a 50mL anaerobic fermentation bottle, and the ethanol concentration produced by the 7th day is 260.0mM.

Description

technical field [0001] The invention belongs to the biological field, and in particular relates to an anaerobic fungus and a method for producing ethanol by fermenting wheat straw with it. Background technique [0002] Energy shortage and environmental crisis are two major problems restricting the economic and social development of the world today. Countries around the world are actively seeking new energy outlets while striving to improve the efficiency of existing energy utilization. Biomass energy is the fourth largest energy after coal, oil and natural gas in the world today, accounting for about 14% of the world's total energy consumption. Biomass energy has gradually become an important new alternative energy because of its renewable, abundant resources, low price and environmental protection. Crop straw is an important part of biomass energy, contains huge nutrients, is an important energy and resource, and is also an important renewable biological resource. In ter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/14C12P7/10C12R1/645
CPCC12P7/10C12N1/145C12R2001/645Y02E50/10
Inventor 魏亚琴王治业
Owner GANSU ACAD OF SCI INST OF BIOLOGY
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