Technology for preparing fermented protein concentrated feed from dense slurry

Abstract

The invention discloses a technology for preparing fermented protein concentrated feed from dense slurry and relates to a technology for producing feed. The technology comprises the following steps of 1), a dense slurry alkali-treatment process comprising adding an alkali and calcium hydrate into dense slurry so that a pH value is in a range of 6.8 to 7.2, 2), a probiotic addition process comprising controlling a temperature of dense slurry in a range of 37 to 41 DEG C, adding probiotics into the dense slurry obtained by the step 1 with stirring and with determining a pH value of the dense slurry, and when the pH value is in a range of 5.8 to 6.2, stopping probiotic addition, 3) a dense slurry-dry material mixing process comprising adding a mixed fry material of soybean meal and cottonseed meal into the dense slurry obtained by the step 2, and stirring, wherein a weight ratio of the dense slurry to the mixed fry material is 1: (1-1.5), and 4) a bagging and fermentation process comprising putting a mixed wet material obtained by the step 3 into plastic bags, carrying out heat-sealing packaging and carrying out fermentation at a normal temperature for 7 to 10 days. The technology solves the problems that the existing technology for producing dense slurry feed by a drying method has a high cost and can damage nutrients of feed.

Description

technical field [0001] The invention relates to a process method for producing feed, in particular to a process method for producing feed by using thick slurry after alcohol production. Background technique [0002] The thick slurry is a thick liquid substance after the filtrate is removed from the filter residue after the corn is fermented to produce alcohol, and is concentrated by vacuum evaporation. It is also called a soluble fermentation concentrate. It is characterized by high water content (70%), sticky physical properties, and it is difficult to dry alone. At present, the common practice in alcohol factories is to mix it into the coarse residue and dry it together with the coarse residue to produce dry powdery substance as feed raw material. This method is not only costly (the drying cost of producing one ton of dry matter is 600 yuan), but also due to high-temperature evaporation treatment during drying, its nutritional value is greatly reduced (about 10%). If it ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a process for making fermented protein concentrated feed with thick pulp. The present invention solves the problems of high cost and destroyed feed nutrition in the production of thick pulp feed by drying method in the prior art.

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