Richi Feed Machine

Influence of floating fish feed pellet making machine

Although the application of floating fish feed pellet making machine extrusion technology in the feed industry started late, the development speed is very fast, and the application range is also relatively wide, and it has even become an important technical means in the current feed processing.

However, how to use the extrusion technology and floating fish feed pellet making machine scientifically, rationally, and stably for a long time to maximize its benefits and functions is still a technical problem that puzzles many feed companies.

1. The influence of floating feed extruder machine

(1) Influence of extrusion on starch

The starch in the feed is mainly amylose, and because the starch pellets form granular agglomerates, its structure is compact and the water absorption is poor. The starch enters the extruder from the floating fish feed making machine conditioner, and in the closed environment of high temperature and high pressure, the macromolecular polymer is in a molten state, and the local molecular chain is cut off by strong pressure and shearing force, resulting in the degradation of amylopectin.

 At the same time, it also causes the cleavage of the α-1,4 glycosidic bond in the amylose, resulting in starch dextrinization, and the starch molecules are broken into short-chain dextrins, which are degraded into soluble reducing sugars, which improve the solubility, digestibility and flavor of starch.

The extruded starch made by floating fish feed pellet making machine, not only has gelatinization effect, but also saccharification effect, which increases the water-soluble content of starch several times to dozens of times, provides favorable conditions for the action of enzymes, and improves the utilization rate of starch in aquatic feed.

Related post: floating fish feed making machine

(2) The effect of extrusion on protein

During the floating fish feed pellet making machine extrusion process, the protein is subjected to high temperature, high pressure and strong mechanical shearing force in the extrusion cavity, its surface charge is redistributed and tends to be uniform, the molecular structure is stretched and reorganized, and the intermolecular hydrogen bonds,

Secondary bonds such as disulfide bonds are partially broken, resulting in the final denaturation of the protein. This denaturation makes it easier for proteases to enter the interior of the protein, thereby improving digestibility.

 In the floating fish feed pellet making machine extrusion process, the main factors affecting protein denaturation are temperature, pressure, strong shear and the moisture of the extruded material.

floating fish feed pellet making machine

(3) The effect of extrusion on fat

The inactivation of lipase and lipoxygenase in the feed improves the storage stability of fat, and also promotes the formation of fat-starch complexes and reduces fat deterioration, which is beneficial for fat storage.

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 Full-fat soybeans are puffed to reduce the chance of fat being exposed to air and deteriorate. In a high-shear environment, soybean oil cells are fully ruptured, thus improving the utilization of fat. Under mild conditions, such as the floating fish feed pellet making machine puffing temperature below 100℃, the effect of fat oxidation is small.

As the floating fish feed making machine puffing temperature rises from 120℃ to 170℃, the moisture increases, and the residual time in the extrusion cavity increases, and the fat oxidation value increases rapidly.

In addition, there are other factors affecting the oxidation of fat, such as the increase of product surface area and transition metal elements can accelerate the oxidation of fat.

(4) Influence of extrusion on crude fiber

Crude fiber feed, also known as rough feed, refers to feed with a natural moisture content below 60% and a crude fiber content equal to or higher than 18% in dry matter. The crude fiber content in all kinds of straws is more than 20%, and the crude fiber content in rice husk is 44%, which is the grain by-product with the highest crude fiber content in all feeds.

 The annual output of various types of straw in my country is 5 trillion tons, and the part used for feed is less than 10%. Compared with the utilization rate of 20% in developed countries, there is a big gap .

Through the floating fish feed pellet making machine extrusion technology, due to the humidification, heating, pressurization and expansion, the lignin between cells and the layers in the cell wall is melted, some hydrogen bonds are broken, the crystallinity is reduced, and the macromolecular substances are decomposed.

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The original compact structure becomes fluffy and part of the digestible substances are released, thereby improving the utilization rate of the feed. The current research results show that after the fibers are processed and extruded, the content of soluble fibers increases relatively, generally by about 3%.

The fiber change is mainly affected by the floating fish feed pellet making machine processing conditions, and obvious changes will occur when the processing conditions are severe.

(5) Influence of extrusion on vitamin.

The high temperature, high humidity and high pressure of the floating fish feed pellet making machine puffing process will lead to the loss of the biological activity of various vitamins, among which the vitamins that are easily oxidized are particularly obvious.

The vitamins added or added to the feed are all lost due to extrusion processing of floating fish feed extruder. The way to overcome the loss of vitamin activity caused by puffing is to increase the amount of vitamins added to the formula, so that the lost residual vitamins can still meet the needs of animals.

(6) The impact of extrusion on harmful substances

The extrusion process of floating fish feed pellet making machine can not only effectively reduce the anti-nutritional factors in the feed such as antitrypsin, lipoxygenase, aringoxin, etc., but also decompose the mustard II and Gossypol, reducing the content of its harmful components.

 In addition, for common harmful microorganisms in feed raw materials, such as Escherichia coli, Salmonella, etc., most of the harmful microorganisms can be killed by extrusion.

2. Advantages of floating fish feed making machine

  • The gears of floating fish feed pellet making machine are directly connected to rotate, realizing high-efficiency energy transmission, low noise and small vibration.
  • The ring die of floating fish feed pellet making machine adopts the quick-release hoop type design, which is easy to replace, has high efficiency and large output.
  • Single-layer or multi-layer stainless steel modulator to ensure pellet feed.
  • Novel structure, compact, safe, low noise, stable work, simple operation and maintenance, stable and safe.
  • Suitable for the production of various high-quality livestock and poultry aquatic feed and other pellets.
  • The floating fish feed pellet making machine adopts belt direct drive mode, with huge driving force, stable rotation and low noise.
  • The opening area of the ring die is increased by 25% to achieve the area-to-power ratio.
  • Different types of floating fish feed pellet making machine modulators and feeders can be selected as required.
Poultry feed pellet making machine

Poultry feed pellet making machine is the key in feed mill

Which step is the most important in making pellet feed in poultry feed mills? Of course, it is the steam preparation of the poultry feed pellet making machine. As we all know, the main machine of poultry feed mnufacturing machine in is mainly composed of feed, stirring, pelletizing, transmission and lubrication systems.

The working process of the poultry feed pellet making machine is that the mixed powder with a moisture content of not more than 15% enters the feeding auger from the hopper, and the appropriate material flow is obtained by adjusting the speed of the stepless speed regulating motor, and then enters the feed mixer, and is mixed with steam by the stirring rod. quality.

If you need to add molasses or grease, you can also add it from the mixing drum with steam.

Poultry feed pellet making machine

Question 1: The importance of steam deployment in complete set poultry feed making machine

There are many factors that affect the quality of pellets, which are made by poultry feed pellet making machine. It is generally believed that feed formulation has the greatest impact on pellet quality, and steam conditioning can play a greater role on the basis of formulation.

In industrial production, most poultry feed mills use the wrong steam method. Try to use high-pressure high-temperature steam to increase the adjustment temperature and increase the water absorption capacity. But this idea was wrong from the start!

Over-temperature steam mainly provides sensible heat, but cannot meet latent heat and humidity requirements. The elevated temperature steam is fed into the regulator with superheated steam.

Superheated steam has high sensible heat, can quickly reach the temperature signal sensor, and reach the set temperature of 85 ℃ – the sensor sends a signal to adjust the automatic flow control valve into the steam flow. Therefore, the steam flow into the conditioner is not large. Water vapor is reduced, latent heat is reduced, and water content is reduced. (Related case: pellet production line in Thailand)

It should be noted that steam granulation is mainly water, and heat is closely related to temperature. You cannot only focus on one and ignore the other. In fact, people often ignore the important factor of moisture, and blindly emphasize the tempering temperature.

Question 2: Too short a conditioning stay is a common problem.

Many people don’t notice the conditioning time of soda water, some conditioning time is only 3-5 seconds, which has a very adverse effect on achieving the ideal steam-material relationship. It should be emphasized that, before the cooked raw starch is transferred from the poultry feed pellet making machine conditioner to the conditioner, it must be highly valued that the cooked raw starch reaches the set temperature.

The total retention time of the preconditioner and the time inside the conditioner boils down to “total conditioning time”, which is inconceivable because it ignores all the logic of food science.

Question 3: The problem caused by insufficient conditioning is the reason for the decrease in moisture absorption after steam conditioning.

In the production process of pellet feed, steam conditioning is not ideal. Adding feed to poultry pellet feed improves the economic benefits of broiler production by improving feed efficiency of poultry feed pellet making machine. (Related case: feed mill plant in Uzbekistan)

This is mainly attributable to reducing feed waste, increasing volume, increasing nutrient concentration, indiscriminate feeding, reducing time and energy for feeding, reducing component segregation, destruction of feed pathogens, thermal denaturation of starch and protein, and improving palatability.

However, if proper temperature conditioning is not employed, particulates can cause poor production performance.

The results show that granulation can cause changes in starch properties, and it is not easy to be hydrolyzed by enzymes. Previously adding broilers to a conditioned basal diet at 93°C resulted in significantly reduced weight gain and increased feed consumption compared to 85°C.

Due to the loss of lysine and arginine due to maillard reaction, starch ages into anti-enzymatic starch, resulting in energy loss. Drain, these are known negative effects of high temperature conditioning.

Starch can also lead to reduced starch digestibility if not heated properly. Amylose can recrystallize after heating, and its digestibility is lower than before heating. Overheated starch can cause caramelization reactions, mainly the condensation of amino acids and sugars into indigestible maillard products.

Increasing the poultry feed pellet making machine conditioning temperature could increase the yield of the wheat basal diet, but had no significant effect on the corn basal diet. This finding may be due to differences in the gelatinization properties of wheat starch at lower gelatinization temperatures compared to corn.

Compared with corn starch, wheat flour can provide a higher gelatinization temperature than corn starch after conditioning at 90 °C, thereby increasing the PDI of wheat-based daily feed. However, it should be noted that during the poultry feed pellet making machine conditioning process, due to the low water content, the degree of gelatinization during granulation is generally low.

Except for the gelatinized starch, the components are mainly used to improve the physical quality of the granules. The results showed that with the increase of poultry feed pellet making machine conditioning temperature, the PDI of the wheat basal diet was improved, but there was indeed a negative effect on weight gain and feed absorption and utilization.

Therefore, although it is generally believed that the durability of poultry feed pellet making machine pellets is related to better production performance, the high durability of pellets obviously cannot overcome the adverse effects of high temperature conditioning on production performance.

Because of the mechanical shear force, high temperature, conditioning time, moisture and other factors in the feed processing process, it can cause the denaturation of feed protein, but the solubility is reduced and the digestibility utilization rate is increased.

In general, heating increases protein digestibility by inactivating enzyme inhibitors, and heating denatures proteins, allowing more enzyme access to sites. Improper vapor conditioning can greatly affect digestible protein content.