Cereal feed heat treatment processing technology

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The heat treatment of the feed is to produce a large temperature rise by adding a certain amount of pressure to the material or by mechanical method, resulting in a large temperature rise in a short period of time, so that the material is temperature, pressure, humidity Under the action, its structure changes to obtain a processing process of the desired performance. In recent years, methods for hot processing cereals or other products (such as oil seeds, pet feed, etc.) include vapor flat and vapor tablets, extrusion, granulation, puffing, microwave heating and baking. In some meat beef breeding, a method of using high pressure cooking and bursting treatment of cereals has been tried. However, due to the cost and maintenance of the equipment, it hinders its further use. Existing rarch shows that the microwave heating method and baking method are currently not a ted, and the expanded method is gradually eliminated. UFP 1 Cereal Steam Packed and Steam Table UFP Service Animal Husband In the 1940s, the steam flattened method has begun. This method can partially kill weed seeds (early). Steam treatment is a process of passing steam into a steam modulator that is equipped with a cereal with a roll pulverizer. In a normal process, the cereals are only a short time (3 ~ 5 min) steam treatment prior to flattening, and typically only soften the grains is not sufficient to change the starch particles. Change. The results show that the steam pressure is flattened by the dry lamination, and the production of the livestock is produced, and the larger tablets are produced, and the generated powder is small, and the physical formation of the feed is improved compared to dry rolling. Physics structure. This is not a kind of advantage when feeding high-level cereal diet. The grain vapor tablet is similar to the steam pressure-flat method, but the cereal is longer (15 ~ 30 min) in the steam modulator, usually enough to increase the moisture content of the cereal to 18% to 20%, then grain The surface is pressed between the surface of the roller to form a flat sheet. Since the 1960s, the cereal steam tablets have been widely used in the bumper. It has been shown that the steam table can increase the grain feed value of 12% to 15%. The thinner the grain tablet, the lighter weight per bushel. Studies have shown that the thinning the grain is pressed, the faster the voxel digestion of the starch. The steam table can more effectively destroy the cereal starch granules to make the product’s physical texture more ideal. In terms of increasing weight, the corn, barley and sorghum after the steam tables have a very good effect. Although the effect of steam tables improve the conversion efficiency of corn and sorghum feed is very obvious, the steam table is not obvious compared to steam crimping treatment. UFP 2 Genuine UFP is first pulverizing the feed, then enter the granulator, through the pressure roller, let the material forced material A process of rotating a thick high-speed rotation.Before granulation, the feed is usually to be modified to a certain degree of steam modulation, but not always. Particle feed can be made into different diameters, lengths and hardness, and its commercial operation has more than 50 years. Compared with the powder, usually all livestock like the physical properties of the particulate feed. Most of the poultry feed and pig feed are granulated. However, for rumina that eat high grain diet, although granulation can improve feed conversion efficiency than other methods, the results are not particularly advantageous because the feed intake is reduced. Since livestock may refuse to eat powder, it is often possible to obtain good results. The method of granulation is also commonly used to store low-quality feed. The particles can be well mixed with the flattened cereals to form a full price or the same texture. It is usually supplemented with a compound of the compound such as a protein to feed an animal or in a multi-wind region for reducing the feeding loss of other form feeds. UFP 3 Extrusion UFP Extruded Cereals or Other Squeezed Feeds The production of feeds will be made through a machine with a rotating screw. Completed, the rotary screw drives the feed forcing a tapered head. In this process, the feed is pulverized, heated and extruded, and generates a strip-shaped product. This process is usually used to make pet feeds with different sizes and shapes. The effect of feeding the frozen grain is similar to the grain treated with other processing methods. Some extruders are also used to processes the whole grain soy or other oils of livestock. Heat treatment can sufficiently remove the anti-nutrient factor in soy or other bean seeds. Extruders can also be widely used in processing foods for people and pets, as well as processing and extracting fat oil seed products. UFP 4 Puffed, Microwave Heating and Baking UFP is more familiar with puffed corn, which causes corn to expand the corn by dry heating (make water from water Products that are caused by liquid becoming a gaseous germs that destroy the cereals. This process can increase the degree of utilization of intestinal and rumen on starch, but reduce the density of the feed (weight of the unit volume). Therefore, the puffed feed is usually taken before feeding to reduce its volume. Microwave heating is actually similar to puffed, but the heat is provided in the form of infrared energy. Baking is a roasting of grains, allowing the grain to directly heat a certain degree of expansion, so that the material has good adverseity. But this process has not been accepted by most livestock feeders. UFP 5 Cereal Feed Hot Treatment Advantages and Disadvantages UFP Service Animal Treasury Feed Hot Treatment can improve the quality of feed, improve the hardness of cereal feed and its The stability of the water, softening tissue, improves the appearance of the feed, playing to sterilizing and disinfection, easy to feed the animal bodyDigestion, absorption and utilization, increase the payment of the feed.However, some negative effects are also produced, such as a certain damage effect on vitamins and enzy , because the temperature of vitamins and enzy are very sensitive during heat treatment.UFP

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