Method for producing aerobic type single-cell protein through autolysis process

Abstract

The invention relates to the technical field of single-cell protein processing, in particular to a method for producing aerobic type single-cell protein through an autolysis process. The method comprises the steps of settling concentration, centrifugal dewatering, drying, sterilization and smashing and packaging, wherein autolysis and drying are carried out on materials with the moisture content of 78 percent to 85 percent obtained after the step of centrifugal dewatering in sequence. The autolysis process is adopted in the process and the manufactured product, autolytic enzymes fully decompose macromolecule nutrients and cell walls in the autolysis process, and high-content free amino acid and free nucleotide can be generated through autolysis. Meanwhile, polysaccharide of the cell walls is decomposed, so that cells are permeable, it is guaranteed that active substances can flow out of the cells, and therefore the active substances can be directly absorbed and utilized by animals. Autolysis is carried out after centrifugal dewatering, and the high efficiency of autolysis can be ensured; the content of moisture needing to be removed in a drying process after autolysis can be reduced, and therefore drying cost is lowered.

Description

[technical field] [0001] The invention relates to the technical field of single-cell protein processing, in particular to a method for producing aerobic single-cell protein by using an autolysis process. [Background technique] [0002] Single cell protein (SCP for short), also known as microbial protein or bacterial protein, uses industrial wastewater, waste gas, natural gas, petroleum alkanes, agricultural and sideline processing products, and organic waste as a medium to cultivate yeast, non-pathogenic Single-celled organisms such as sexual bacteria, micro-bacteria, fungi, etc., and then made after purification and drying, it is an important protein source for the food industry and feed industry. Single-cell protein products are rich in protein, with a complete range of amino acids and appropriate proportions. Single-cell protein is also rich in fat, carbohydrates, nucleic acids, vitamins and inorganic salts, and contains calcium, phosphorus, potassium, iron, magnesium, s...

AI Technical Summary

Problems solved by technology

However, the existing process is directly dried and microwave sterilized after dehydration, which destroys most of the endogenous enzymes, so no active substances will be produced;

[0007] 3) The protein digestibility of the existing processing technology is still not high, and there is still room for further improvement;

[0008] 4) The single-cell protein has a relatively high content of nucleic acid. The drying treatment of the ordinary process does not decompose the nucleic acid into nucleotides and remains in the cell. However, decomposing the nucleic acid into nucleotides by a certain method can make the single-cell protein be applied to animals. Feed has two obvious effects of attracting food and immunity. The existing technology does not consider how to decompose nucleic acid into high-value nucleotides

However, these two patents are not suitable for this patent. The raw materials used in this patent application are anaerobic bacteria. The characteristics of bacteria are quite different from those of aerobic bacteria. The autolysis methods are also very different. Long, need to add enzymes to promote autolysis, anaerobic bacteria autolysis has more restrictions on the reaction vessel, moisture content, pH, temperature, etc., and the product is difficult to control, and it is easy to produce a high content of spoilage products

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