Detailed information about corn feed analysis

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    Corn gluten feed is made of corn gluten meal, corn steep liquor, corn fiber, crushed corn, corn husks, compounded, pressed at high temperature, deep degreasing, and fermented by multiple acid-resistant bacteria in liquid and solid state, and then hydrolyzed at low temperature. , Compound protein feed produced by Penghua Drying.

    Introduce

    Corn gluten feed is also called corn gluten powder. It is made by wet milling process of corn kernels to obtain corn starch milk, which is made by hydrolysis, separation, concentration, fermentation and drying, and its protein content is 20%~70%. Protein raw materials with development potential. Therefore, replacing part of soybean meal with corn gluten feed can not only alleviate the lack of protein resources in my country, but also reduce feed costs and improve the economic benefits of livestock and poultry breeding. However, because the corn gluten feed has a high crude fiber content (10%-20%) and contains resistant starch, it is not conducive to the absorption and utilization of nutrients by animals, which affects its wide application in production. At present, reports on the application of corn gluten feed mainly focus on animal diets such as pigs and sheep.

    Corn gluten meal, also known as corn gluten meal, is one of the by-products of processed corn starch. The main components are zein and zein, the content of gliadin can be as high as 45%, while the water-soluble protein only accounts for About 3%, the water solubility of corn gluten meal is particularly poor, and the protein contained in it lacks essential amino acids such as lysine and tryptophan, so its biological value is low. When it is used in the feed industry, there is a low protein digestibility and utilization rate. problem.

    The color of corn gluten feed is yellow. It is rich in nutrients, possesses the characteristics of a variety of cereals, and is rich in various amino acids. It is an ideal feed for raising chickens, ducks, geese, pigs, fish, and various large animals. Excessive dosage during feed preparation will cause the feed to be too acid, which should be controlled within 10%.

    Microbial fermentation

    The method of microbial fermentation can improve the solubility of corn gluten, thereby improving its digestibility and utilization rate as feed for animals, and promoting the effective utilization of corn protein resources.

    At present, the most commonly used strains of microbial fermented feed are yeast, lactic acid bacteria, bacillus, streptococcus, and some molds. Feed yeast can produce digestive enzymes required by various animals and play an important role in the digestion and absorption of nutrients. At the same time, yeast has a strong yeast fragrance, which can increase appetite and enhance digestion and absorption of livestock. Bacillus has strong amylase, protease, and lipase activities, which can significantly improve feed utilization and consume a lot of oxygen. , Maintain the intestinal anaerobic environment, inhibit the growth of pathogenic bacteria, maintain the normal ecological balance of the intestine, and enhance the body's immunity; Lactic acid bacteria can improve the quality of feed, and can directly promote animal growth, improve the microecological environment of the digestive tract, and regulate digestion The immune system has the potential to replace antibiotic-containing feeds. Each kind of bacteria has different functions in fermented feed, so the effect of mixed fermentation is better than that of single bacteria fermentation.

    Through the method of combining plate culture and fermentation test, the strains used to produce fermented feed with corn gluten meal as the main raw material were selected as Lactobacillus thermophilus, Bacillus subtilis and Candida tropicalis; the three strains used were determined by orthogonal test The ratio of Lactobacillus thermophilus: Bacillus subtilis: Candida tropicalis = 3:3:2.

     

    Yellow pulp water fermentation method

    Yellow pulp water is the main wastewater discharged from the processing and production of corn starch. Among them, the BOD value is as high as 1.5 my/g, and it is rich in organic matter. Generally, factories are discharged into rivers, rivers, and lakes, causing serious pollution. The process of producing feed protein by using Geotrichum candidum fermentation method with yellow pulp water as the raw material.

    The yellow pulp water fermentation method to produce feed protein can basically solve the problem of waste water pollution in starch plants. It can also be used to produce feed protein comprehensively. Its protein content is close to that of feed yeast, and it develops a new important resource for protein feed production.

    Combination of corn germ meal

    The energy protein level and amino acid composition of rations are the most direct factors affecting daily weight gain. Corn protein can be divided into 4 types: albumin globulin, prolamin and gluten. Albumin and globulin are proteins with high biological value, but their content is very small in corn, and they are mainly distributed in corn germ.

    The combined use of corn germ meal and corn gluten feed can not only use the protein in corn germ meal, which is the most biologically valuable feature of corn gluten, but also use a variety of feed materials to improve the overall quality of the protein in the diet.

    Another significant point of corn germ meal and corn gluten feed is the high crude fiber content, generally 10%-20%. The stomach and small intestine of monogastric animals do not secrete fibrinase and hemicellulase. The digestion of fibrin and hemi-fibrin in feed mainly depends on the fermentation of fine plugs in the colon and intestine, so monogastric animals can digest crude fiber. The utilization capacity is low, and the dietary fiber plays an important role in the nutrition of pigs.” In the various treatments of the feeding experiment, the maximum addition amount of corn germ meal and corn gluten feed in the pig compound feed did not exceed 16%. The fiber level is less than 5% and has no negative impact on the fattening effect of pigs.

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