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Process for preparing yeast culture by taking hulled spirit distilled grains as raw material

A technology of yeast culture and distiller's grains, applied in animal feed, animal feed, food processing, etc., can solve the problems of poor utilization, environmental pollution, accumulation and corruption, etc., achieve comprehensive utilization, improve nutritional value and application Range, effect of reducing drying cost

Active Publication Date: 2014-02-05
江苏益元泰生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, only a small part of distiller's grains are used for ruminants, and most of them are not well utilized, piled up and corrupted, leading to environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A process for preparing yeast culture from rice husk distiller's grains, comprising the following steps:

[0033] 1) Extrusion treatment of raw distiller's grains: Fresh distiller's distiller's grains just out of the pool are used to separate the rice husk from the distiller's distiller's grains through screw extrusion. The rice husks are mixed with coal and can be used as boiler fuel to be the product Drying provides a heat source.

[0034] 2) Ingredients: Take 1500kg of separated distiller's grains without rice husk, the water content of which is greater than 50%, which is not suitable for direct fermentation. Add 100kg of bran and 100kg of soybean meal to control the water content to 45-50%, and adjust the crude protein content to 25-28%.

[0035] 3) Activation of strains: Weigh the active dry yeast of Saccharomyces cerevisiae (the specification is the number of effective viable bacteria 2×10 10 per g) 1kg, making the fermentation inoculum size 1~5×10 7 pcs / g dr...

Embodiment 2

[0038] 1500kg of husk-removed distiller's grains, 100kg of bran, 150kg of soybean meal, brewing active dry yeast (the specification is 2×10 10 pcs / g) 1.2kg, add 12kg of warm water containing 1% sucrose to activate for 30 minutes, protease (50000μ / g) 0.3kg, cellulase (50000μ / g) 0.2kg, molasses 30k, mix well, Enter the pool to control the temperature at 30°C and ferment for 24 hours. After turning over the material, continue to pile up and heat up. Control the temperature at 45°C for 36 hours of enzymatic hydrolysis, dry, pulverize, and pack to become the product. All the other are with embodiment 1.

Embodiment 3

[0040] 1800kg of husk-removed distiller's grains, 50kg of bran, 50kg of soybean meal, brewing active dry yeast (the specification is the number of effective viable bacteria 2×10 10 pcs / g) 2kg, add 20kg of warm water containing 1% sucrose to activate for 30 minutes, protease (50000μ / g) 0.1kg, cellulase (50000μ / g) 0.1kg, molasses 40k, mix well, add The pool is controlled at a temperature of 35°C for 36 hours of fermentation. After turning over the material, it continues to accumulate and heat up. The temperature is controlled at 50°C for 12 hours of enzymatic hydrolysis, dried, crushed, and packaged to become the product. All the other are with embodiment 1.

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Abstract

The invention discloses a process for preparing a yeast culture by taking hulled spirit distilled grains as a raw material. The process comprises the following steps: hulling the spirit distilled grains; preparing materials; activating a strain; inoculating and mixing; controlling temperature to ferment; performing enzymolysis and wall breaking, and the like. The hulls are separated by using a mechanical method, so that the coarse fiber content of the yeast culture product is reduced, and the nutritive value and the application range of the product are improved. The hulls which are separated from the spirit distilled grains can be used as a boiler fuel after being mixed with coal to provide a heat source for drying the product, so that the drying cost is reduced, comprehensive utilization is realized, and no pollution is caused. The coarse fiber content of the product is over 50 percent less than the coarse fiber contents of the conventional spirit distilled grains and similar products, the situation that the conventional spirit distilled grain product is only suitable for ruminating animals is solved, the application range of the product is expanded, and the development of the market is facilitated.

Description

technical field [0001] The invention relates to a process for preparing yeast culture by using husk-removed distiller's grains as raw materials. Background technique [0002] Yeast culture is a kind of microecological preparation, mainly Saccharomyces cerevisiae, which is processed under the control of modern fermentation technology by combining liquid and solid state or directly fermenting on solid medium together with solid substrate. This product does not contain a large amount of active yeast. Yeast is only a tool in the production of yeast culture products. Whether it survives in the final product will not affect the use effect of the product. Its main active ingredients are extracellular metabolites produced by yeast fermenting solid substrates, solid substrates denatured after fermentation, yeast cell contents and yeast cell walls. The composition of the product is complex, containing minerals, B vitamins, flavor-enhancing substances, digestive enzymes, mannan oligos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/06A23K1/00A23K1/16A23K10/38
CPCY02P60/87
Inventor 曹镜明曹轩承
Owner 江苏益元泰生物技术有限公司
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