News Center

The company attaches importance to the role and training of technical talents, actively introduces foreign technical experience,and through the perfect quality management system certification, production of marketable high and new, sharp products, thus in a variety of fuel, rice, wheat, corn, and other areas of the processing machinery and equipment have domestic advantage.

Method and function of fermented soybean meal

July 19, 2021

As a high-quality protein source, soybean meal has a crude protein content of 43% to 46%, which is currently the most widely used protein material in my country. However, soybean meal for feed is generally high-temperature soybean meal, which has serious protein denaturation and poor solubility, which will affect protein digestion. Soybean meal produced by individual manufacturers sometimes contains certain anti-nutritional factors and flatulence factors. Fermented soybean meal uses soybean meal as raw material and adopts a unique strain and fermentation process. The protease secreted in the process of microbial fermentation causes soybean protein to be decomposed into small molecular proteins and small peptide molecules to improve the nutritional value and digestibility of soybean meal.

1. Introduction of fermented soybean meal

Fermented soybean meal is also known as biological peptide, biological soybean meal, small biologically active peptide, and soybean peptide.

This product is a combination of modern bio-engineering fermentation strain technology and traditional Chinese solid fermentation technology, using high-quality soybean meal as the main raw material, inoculating microorganisms, through microbial fermentation to maximize the elimination of anti-nutritional factors in soybean meal, effectively degrading soybeans The protein is a high-quality small peptide protein source, and can produce active substances such as probiotics, oligopeptides, glutamic acid, lactic acid, vitamins, UGF (unknown growth factor) and so on. It has the effects of improving palatability, improving digestion and absorption of nutrients, promoting growth and reducing diarrhea.

Soybean oil pressing equipment

Second, the effect

1. It has a unique fermented aroma, excellent food attraction, improves the flavor of feed, increases animal appetite, long-term use to develop a hobby, increases animal feed intake, promotes growth, and reduces feed consumption;

2. Provide natural acidifiers-lactic acid, acetic acid, no need to add feed acidifiers, reduce feed cost;

3. No antigens and anti-nutritional factors, to solve the nutritional diarrhea of ​​animals;

4. Regulate and activate the overall activity of cells and the body, promote the development of animal intestinal villi, promote the function of the gastrointestinal tract of young animals, improve disease prevention and disease resistance, and promote the healthy growth and development of animals;

5. High content of biologically active small peptide protein, which can be directly absorbed through the intestinal mucosa, with fast transport speed, fast absorption rate, and not easily saturated; there is no competition with amino acid absorption, and it can also promote the transport of free amino acids; small peptide absorption consumes low energy , Save energy and improve protein utilization;

6. Supplement a large number of active probiotics, enhance the growth and reproduction of beneficial microorganisms, inhibit the growth of E. coli, Salmonella and other harmful bacteria, improve the microecological balance of the intestinal tract, and reduce the occurrence of diseases;

7. Improve the immune function of the animal body, reduce the amount of antibiotics or replace part of the antibiotics, and have the dual effects of nutrition and improving immunity.


Third,The amount of usage can be determined according to the different needs of the feeding object, feeding stage and physiological state (lactation, anti-stress, growth promotion, etc.):

1. Replace all whey powder and milk replacer powder;

2. All fish meal is replaced, no histamine, no gizzard erosins; no high acid value; no high peroxygen ratio;

3. All intestinal membrane protein powder and 40% plasma protein powder are replaced, and there is no danger of bacterial contamination;

4. It is superior to all plant protein sources such as soybean meal.

Animal dosage: suckling pig 10%-25%; medium and large pigs 5%-8%; breeding eggs 10%-20%; freshwater fish 5%-15%; piglets 5%-15%; lactating sows 5%-10 %; meat and poultry 5%-10%; mandarin, turtle, sea fish 10%-20%; pregnant sow 5%-8%; cattle and sheep 5%-15%; shrimp, crab, eel 10%-25%.


Fourth, the content of ingredients

1. Anti-antigen-free and anti-nutritional factors are processed by microbial fermentation, the original anti-nutritional factors such as urease, trypsin inhibitor, hemagglutinin, soy globulin, β-conglycinin, phytic acid are fully purified, which is beneficial to maintain Intestinal tissue structure, promote immune function, improve animal production performance.

2. The content of small molecule protein and small peptide is high, and the content of small peptide (below MW1000Dalton) accounts for 70% of the total protein. Studies have shown that most of the degradation products of protein in the digestive tract are absorbed by small peptides. Therefore, adding this product to the diet can increase the utilization rate of protein digestion and absorption by more than 95%, greatly promote the absorption of nitrogen in the form of peptides, and increase feed nitrogen. When deposited in the body, small peptides are easily combined with mineral elements in the intestine to form a soluble chelate to promote the absorption of Ca, P, Cu, Zn, Fe, Mn, I, Se, Co, etc., and promote animal growth.

3. Rich in lactic acid, acetic acid and glutamic acid after fermentation, the lactic acid content is as high as 3%, and it is rich in acetic acid and glutamic acid, which is beneficial to maintain and improve animal intestinal health and help control diarrhea.

4. A variety of probiotics and digestive enzymes. This product is dried at low temperature and can maintain the activity of various digestive enzymes. It contains a large number of probiotics such as lactic acid bacteria, yeasts, acetic acid bacteria, actinomycetes, and the total bacterial count. Up to 108cfu/g or more. Helps maintain normal intestinal microecological balance.

5. Bioactive ingredients and useful sugars are rich in oligopeptides, vitamins and some other unknown growth-promoting factors after being completely absorbed in the intestine or through epithelial mucosa, they can exert their own biological activity in the body. This product also contains a large amount of sugars that are easy to dissolve in the digestive juice, which can be quickly absorbed and utilized by the animal body. The disaccharides contained can quickly enter the TCA cycle to provide energy for the body.

Fifth, Nutritional Index There are many fermented soybean meal products on the market, and the quality of each product is different, not to mention that the quality of each batch of products from even one manufacturer is not stable. Moreover, the national standard for fermented soybean meal has not been issued, and the feed ingredient database did not include fermented soybean meal in it in 2011. Therefore, it is necessary to analyze the nutritional content of the product when selecting products and adjusting formulas. Here are the nutritional recommendations for fermented soybean meal in the 2010 national swine nutrition guide (national swine nutrition guide) in the United States. I hope it will help:

Raw material fermented soybean meal

Dry matter (%) 91 Crude protein 53.7 Amino acid SID Calcium 0.29

Digestibility (kcal/kg) 3571 Lysine 3.11 77 Phosphorus 0.82

Metabolizable energy (kcal/kg) 3351 Threonine 1.98 79 Sodium 0.12

Net energy (kcal/kg) 2068 Methionine 0.76 88 Chlorine

Acid detergent fiber (%)-cystine 0.77 70 mg 0.18

Neutral detergent fiber (%)-Tryptophan 0.67 84 Potassium 1.2

Crude fiber 3.3 Isoleucine 2.48 86 Sulfur 0.36

Starch (%) 0.8 Valine 2.69 84 Copper (ppm) 7

Crude fat (%) 0.8 Arginine 3.50 94 Iodine (ppm)

Calcium 0.29 Histidine 1.30 84 Iron (ppm) 142

Phosphorus 0.82 Leucine 4.09 85 Manganese (ppm) 21

Linoleic acid-Phenylalanine 2.71 87 Selenium (ppm)


Six, formula

(1) Fermented soybean meal formula 1 (contains 30% bioactive small peptides, crude protein 48-50%)

Proportion: 1000 kg of high-quality soybean meal, 5-10 kg of mixed strains of spores and yeast (live bacteria content 1 billion/g), 20 kg of nutrient medium, 350-400 kg of water (350 kg in summer, 400 kg in winter) . If 100 grams of live lactic acid bacteria are added per ton of fermentation raw materials, such as natto strains with a live bacteria content of 10 billion per gram, or "Anp01" Enterococcus faecium, the effect will be better.

Note: This method is also used for fermented rapeseed meal and cotton meal to detoxify instead of soybean meal.

(2) Fermented soybean meal formula 2 (contains 70% bioactive small peptides, crude protein 50-55%)

Proportion: 1000 kg of high-quality soybean meal, 40 kg of nutrient medium, 30 kg of aqua compound strain group I, 60 kg aqua compound strain group II, 250-300 kg water (250 kg in summer, 300 kg in winter).

Note: 1. This product can replace 50% fish meal in an equal amount in aquatic feed, and all fish meal can be replaced in pig and chicken feed; 2. This product can be added with other products such as lactose to make milk replacer powder and replace all milk added in suckling pig feed. Qingfen.

(3) Fermented soybean meal formula 3 (contains 80-100% biologically active small peptides and 55-60% crude protein)

Because the production cost is relatively high and the process is relatively complicated, it is generally used in veterinary drug factories to make antimicrobial biological peptide products.


Seven, production process

The process flow is as follows: soybean protein-inoculation strains-fermentation and enzymatic hydrolysis-low temperature drying-crushing-weighing and packaging.