Penicillium rubens-yielding strain of decomposed fungus of wheat straws in cold region and fermental cultivation method and application thereof

A technology of fermentation culture and fermentation medium, which is applied in the field of separation and application of straw decomposing fungi in cold regions, can solve the problems of low ambient temperature of straw, environmental pollution, waste of crop resources, etc., and achieves improved fermentation rate, strong cold resistance, The effect of improving the fermentation effect of straw

Active Publication Date: 2018-11-27
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Wheat is the main food crop in my country, and there is a huge amount of straw produced every year. In winter, due to the low ambient temperature, low return conditi...

Method used

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  • Penicillium rubens-yielding strain of decomposed fungus of wheat straws in cold region and fermental cultivation method and application thereof
  • Penicillium rubens-yielding strain of decomposed fungus of wheat straws in cold region and fermental cultivation method and application thereof
  • Penicillium rubens-yielding strain of decomposed fungus of wheat straws in cold region and fermental cultivation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Isolation and identification of straw-decomposing fungi in cold regions

[0042] 1. Test materials and methods

[0043] 1.1 Test material

[0044] The EM bacteria liquid used in this experiment was provided by Heilongjiang Academy of Agricultural Sciences. Wheat straw was collected from the experimental field of Northeast Agricultural University.

[0045] 1.2 Test method

[0046] 1.2.1 Decomposition of straw by EM bacteria in cold regions

[0047] In December 2016, in the experimental field of Northeast Agricultural University in Harbin, Heilongjiang Province, the outdoor temperature was between minus 12°C and 25°C. The mixture of crushed wheat straw and EM bacteria solution was buried in a deep ditch, and covered with untreated straw and plastic cloth. , decomposed and decomposed for 60d. The decomposed straw that was taken out was in a rotten state, and occasionally strips or small fragments of incompletely decomposed straw fragments were seen.

[0048...

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Abstract

The invention discloses a penicillium rubens-yielding strain of decomposed fungus of wheat straws in cold region and a fermental cultivation method and an application thereof and belongs to the fieldof separation, preparation and application of decomposed fungus of wheat straws in cold region. The invention firstly discloses a separated penicillium rubens-F1 strain, the microbial preservation number of which is CGMCC No. 15100. The separated penicillium rubens-F1 strain can grow at different temperatures and still realizes vigorous growth in a low temperature condition. The invention furtheroptimizes related parameters of the fermental cultivation method of the separated fungi strain. The separated fungi strain can ferment the strains in the low temperature condition and can be independently applied to or jointly applied to fermenting the straws with an EM inoculant; by fermenting the wheat straws for 25 days at the low temperature after the fermenting liquor of the strain is mixed with the EM bacterial solution, the straw fermenting effect is improved obviously, and the fermenting rate is increased by 43.9%.

Description

technical field [0001] The present invention relates to an isolated cold region wheat straw decomposing fungal strain, and also relates to the application of the cold region straw decomposing fungal strain in high-efficiency fermentation of wheat straw at low temperature, belonging to the field of separation and application of cold region straw decomposing fungi. Background technique [0002] Wheat straw is rich in nutrients such as cellulose, hemicellulose, lignin, protein and mineral elements, and is a renewable biological resource. Wheat is the main food crop in my country, and a huge amount of straw is produced every year. In winter, due to the low ambient temperature, low return conditions and low promotion degree, many straws are burned or discarded, which not only wastes valuable crop resources, but also affects the The environment has caused huge pollution. Straw is mainly rich in cellulose, hemicellulose and lignin, and many fungi, bacteria and actinomycetes can sec...

Claims

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Application Information

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IPC IPC(8): C12N1/14C05F15/00C05F11/08C05F17/00C12R1/80
CPCC05F11/00C05F11/08C05F17/00C12N1/14C12N1/145C12R2001/80Y02W30/40
Inventor 李凤兰冯艳忠冯哲王丽娟杨秀梅徐永清袁强
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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