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Microbial preparation for decomposing straw cellulose, preparation method thereof, and method for decomposing straw cellulose

A microbial preparation and straw cellulose technology, applied in the field of microbial preparations, can solve problems such as unsatisfactory fermentation efficiency and general palatability of fermented products, and achieve the effect of improving palatability and nutrition, and good fermentation decomposition effect

Inactive Publication Date: 2020-01-14
SHENYANG MODERN SANCHUAN BIOTECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, although many methods of treating straw with microorganisms have been disclosed in the prior art, there are still some deficiencies in the existing methods, such as unsatisfactory fermentation efficiency and general palatability of fermented products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] First, respectively configure the medium suitable for the growth of different strains;

[0057] Wherein, in the common liquid culture medium that Phanerochaete chrysosporium, Cellulomonas chrysogenum and Candida utilis are used to cultivate and content are: corn flour (5.0g / L), rice straw powder ( 3.0g / L), ammonium nitrate (1.0g / L), magnesium sulfate (0.1g / L), potassium dihydrogen phosphate (0.2g / L), dipotassium hydrogen phosphate (0.1g / L); trace elements: Fe 3+ (0.002mol / L), Mn 2+ (0.004mol / L), Zn 2+ (0.003mol / L).

[0058] The components and contents of various nutrients in the Lactobacillus acidophilus liquid medium are: corn flour 10g / L, diammonium citrate 2g / L, dipotassium hydrogen phosphate 2g / L, Tween80 2g / L, sodium acetate trihydrate 5g / L L.

[0059] Then, prepare the high-efficiency anaerobic straw starter of the present invention according to the method as follows:

[0060] 1) Preparation of primary liquid strains

[0061] i) Put the prepared common liqui...

experiment example 1

[0081] In summer, when the temperature is about 30°C, according to the present invention, the mass ratio of the microbial preparation for decomposing straw cellulose to the straw powder is 1:1000. After the microbial preparation and the straw powder are mixed, anaerobic fermentation is carried out for 7~ 10d; Then, the fermentation was stopped, and after inspection, it was found that the straw powder had turned into a paste, that is, the fermentation was completed.

[0082] The pasty fermented product and unfermented straw powder from the fermentation institute were used to feed yellow beef cattle of the same month age. It was found that the cattle had a higher preference for straw fermented product; The fed yellow beef cattle obviously gain more weight than the yellow beef cattle fed with unfermented stalks.

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Abstract

The invention provides a microbial preparation for decomposing straw cellulose, a preparation method thereof and a method for decomposing the straw cellulose. The strain is selected as a raw material strain according to the fermentation effect of the microorganisms to the straw and different actions of the microorganism metabolite to livestock, further matching of the microorganisms in the preparation is reasonable, the straw zymolysis effect is good, not only can the straw cellulose be decomposed, but also the palatability of the decomposition product can be good and the nutrients can be rich. In the preparation method, the strain is taken as the raw material microorganism, the culture medium and the culture conditions are further adjusted and optimized, and the prepared microbial preparation has the advantages that the the straw decomposing effect is good and the like.

Description

technical field [0001] The invention relates to the field of microbial preparations, in particular to a microbial preparation for decomposing straw cellulose, a preparation method thereof, and a method for decomposing straw cellulose. Background technique [0002] my country is rich in straw resources, and the annual output of straw reaches about 600 million tons, accounting for 20% to 30% of the world's total straw output. However, due to the high crude fiber content of straw feed, but the low protein and mineral content, the digestibility of straw for livestock and poultry is low, and the palatability of straw is poor, which limits the application of straw, and the straw used for feed is not enough. 1 / 10 of the total amount. If these resources can be fully and effectively utilized, it will become one of the important ways to alleviate the three major crises of "food, energy and environment" that mankind is facing today and to achieve sustainable agricultural development. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12N1/14C12N1/16A23K10/18C12R1/645C12R1/01C12R1/72C12R1/23
CPCC12N1/14C12N1/16C12N1/20
Inventor 杨得蓂黄宇祥
Owner SHENYANG MODERN SANCHUAN BIOTECH RES INST