Overview of Expanded Corn Research

Extruded corn refers to the gelatinization process of corn under the combined action of moisture, heat, mechanical shearing, friction, rubbing, and pressure difference. Its color is light yellow, powdery and fluffy, with popcorn, soluble in water.

First, the characteristics of puffed corn

1, high digestibility: high temperature, high pressure, high shear - starch molecular chain open - increased surface area of ​​chyme particles - increased digestibility - protein peptide chain cleavage and AA - protein absorption rate increased .

2. Induced feeding and health care: corn has natural aroma and improved palatability; puffed corn can rapidly digest starch (RSD 78%), starch digestibility index (SDI) reaches 98%, and the degree of large intestine fermentation is low, and it has diarrhea in piglets. Higher protection rate.

3, with adhesiveness, that can make feed molding, but also can maintain the loose taste;

4, high health indicators: the high temperature generated by the expansion of Salmonella, E. coli and other harmful bacteria kill all, a substantial increase in feed health indicators - China Feedstuffs Information Network;

5, the amount of raw materials added, feed stability coefficient increased significantly.

Second, the physiological role of expanded corn

1. Improve the degree of gelatinization of corn starch and organize vegetable protein;

2. Reduce the content of anti-nutritional factors in feed and feed ingredients;

3, enhance feed palatability;

4, improve the digestibility of nutrients.

Third, the application of puffed corn

1. Raising pigs: At present, most of domestic pigs' feedstuffs use extruded corn in their feed products because puffed corn can reduce the rate of diarrhea in piglets.

2, aquatic products: mainly used for shrimp and squid material.

3, special breeding: the use of expanded corn to save manpower and material resources, improve efficiency, but its degree of gelatinization requirements in more than 90%, the product should be fine powder.

4, production of adhesives and other industrial raw materials.

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