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Method for preparing fatty acid-rich feed material by steam explosion combined with solid-state fermentation

A solid-state fermentation and feed raw material technology, applied in animal feed, animal feed, animal husbandry, etc., can solve problems such as increasing the risk of animal husbandry, reduce waste water discharge and generation of harmful substances, increase conversion rate, and shorten saccharification time Effect

Inactive Publication Date: 2019-03-15
河南双成生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the oils and fats used in livestock and poultry feed are animal and vegetable oils. As my country is a well-known country in the production and use of feed, the application of vegetable oils and animal oils in feed formulas has led to an increase in the price of vegetable oils for human consumption, and its price fluctuations have driven Changes in the prices of feed, agricultural products and their by-products increase the risks of the livestock breeding industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The method for preparing fatty acid-rich feed materials by steam explosion combined with solid-state fermentation according to the present invention, the specific steps are as follows:

[0023] a. After the wheat with moisture content 12wt% is dedusted, it is standby;

[0024] b. Feed the wheat raw material into the steam explosion machine, and after it is closed, feed in saturated steam at 185°C. When the pressure in the explosion cylinder of the steam explosion machine reaches 0.5MPa, keep it for 1min, and open the pneumatic valve of the steam explosion machine within 0.00875s for blasting;

[0025] c. Collect the material after blasting, when the temperature of the material drops to 50°C, add 50% bran by weight, adjust the water content to 45%, and use Ca(OH) 2 Adjust the pH to 6.0, then add medium-temperature amylase and glucoamylase in the amount of 50 U / g raw material and 210 U / g raw material respectively, stir evenly, and saccharify in solid state for 12 hours; ...

Embodiment 2

[0030] The method for preparing fatty acid-rich feed raw materials in combination with steam explosion and solid-state fermentation according to the present invention, the specific steps are:

[0031] a. After drying the corn naturally, remove the dust, and measure the moisture content of 11.2 wt% for later use;

[0032] b. Feed the corn raw material into the steam explosion machine, close it and feed saturated steam at 185°C, when the pressure in the explosion cylinder of the steam explosion machine reaches 0.5 MPa, keep it for 4 minutes, and open the pneumatic valve of the steam explosion machine within 0.00875s for blasting;

[0033] c. Collect the materials after blasting. After the temperature of the materials drops to 60°C, add 50% bran by weight to adjust the water content to 42%. At the same time, use Ca(OH) 2 Adjust the pH to 6.5, add medium-temperature amylase and glucoamylase in the amount of 80U / g raw material and 250U / g raw material respectively, after stirring ev...

Embodiment 3

[0038] The method for preparing fatty acid-rich feed raw materials in combination with steam explosion and solid-state fermentation according to the present invention, the specific steps are:

[0039] a. After the sorghum is dried naturally, the dust is removed, and the measured moisture content is 11.0 wt% for later use;

[0040]b. Put the sorghum raw material into the steam explosion machine, and after closing it, pass in saturated steam with a temperature of 215°C. After the pressure in the explosion cylinder of the steam explosion machine reaches 1.0MPa, maintain it for 4 minutes, and open the pneumatic valve of the steam explosion machine within 0.00875s. steam explosion;

[0041] c. Collect the materials after blasting. After the temperature drops to 50°C, add 40% bran by weight to adjust the water content to 41%. At the same time, use Ca(OH) 2 Adjust the pH to 6.5, then add mesophilic amylase and glucoamylase in the amount of 75 U / g raw material and 220 U / g raw materia...

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Abstract

The invention discloses a method for preparing a feedstuff enriched in fatty acid through steam explosion in combination with solid-state fermentation. The method comprises the following steps of putting a starchy biomass raw material in a steam blasting machine to explode; collecting an exploded material, controlling the temperature, adding bran, adjusting the water content and the pH value, and adding medium-temperature amylase and diastatic enzyme to carry out solid-state saccharification; inoculating and culturing an activated sticky silk spore yeast strain to form sticky silk spore yeast seed solution, and inoculating the sticky silk spore yeast seed solution in a saccharified solid-state material according to a certain inoculating amount; and drying and crushing a fermented product so as to obtain the feedstuff. According to the method, the biology and the physical processing method are considered comprehensively; the starchy raw material is exploded and saccharified at first and then the exploded and saccharified starchy raw material is subjected to solid-state fermentation by adding the sticky silk spore yeast; the high-quality feedstuff enriched in fatty acid is produced with low cost; and a more economic and effective energy feedstuff production method is provided for developing the animal husbandry industry.

Description

technical field [0001] The invention relates to the technical field of biological feed production, in particular to a method for preparing fatty acid-rich feed raw materials in combination with steam explosion and solid-state fermentation. Background technique [0002] The purpose of adding oil to animal diets initially was to provide high-concentration energy to meet the energy needs of animals during rapid growth. With the deepening of animal nutrition research and the widespread use of oil in feed, people have found more value in the use of oil, such as essential fatty acids (linoleic acid and a-linolenic acid) are essential additions to animal feed for rapid growth. It can promote the absorption of nutrients such as fat-soluble pigments and trace elements; it can bring pleasant oily aroma and increase palatability; it can increase the stability of aquatic feed in water; it can reduce the generation of dust during feed processing and the energy consumption of feed granula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K10/12
Inventor 苏丽娟曹胜炎宋安东杨森王风芹任天宝李伟耿鹏飞
Owner 河南双成生物科技有限公司
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