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Prawn feed and preparation technology thereof

A preparation process and technology of prawn feed, which is applied in the field of production process of aquaculture feed, can solve the problems of poor water resistance and low starch gelatinization degree of the product, and achieve the effect of low product cost, high gelatinization degree, and not easy to lose

Inactive Publication Date: 2017-06-23
TIANJIN JINHAIMA AQUACULTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the unfavorable aspects of hard grain shrimp feed is that the starch gelatinization degree is low during the production process, resulting in poor water resistance of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of prawn feed and preparation technology thereof, comprises the following steps:

[0030] (1) In the pretreatment of raw and auxiliary materials, the block raw materials are crushed first, and then batched. After the raw materials enter the cleaning sieve, the impurities in the raw materials are separated, and then the iron filings are removed by the magnetic separator, which can not only ensure the quality of the feed, but also It can protect the equipment and prolong the life of the equipment.

[0031] (2) For prawn pellet feed, the particle size of the raw material is required to reach 90 mesh.

[0032] (3) The cv value of the material mixing uniformity before granulation is lower than 6%.

[0033] (4) The humidity of the powder after adding water before tempering should be about 10%.

[0034] (5) The humidity of the material after conditioning is about 16%, the vapor pressure during conditioning is 500KPa, and the conditioning temperature is 90°C.

[0035]...

Embodiment 2

[0039] A kind of prawn feed and preparation technology thereof, comprises the following steps:

[0040] (1) In the pretreatment of raw and auxiliary materials, the block raw materials are crushed first, and then batched. After the raw materials enter the cleaning sieve, the impurities in the raw materials are separated, and then the iron filings are removed by the magnetic separator, which can not only ensure the quality of the feed, but also It can protect the equipment and prolong the life of the equipment.

[0041] (2) For prawn pellet feed, the particle size of the raw material is required to reach 80 mesh.

[0042] (3) The cv value of the material mixing uniformity before granulation is lower than 5%.

[0043] (4) The humidity of the powder after adding water before tempering should be around 8%.

[0044] (5) The humidity of the material after conditioning is about 14%, the vapor pressure during conditioning is 500KPa, and the conditioning temperature is 85°C.

[0045]...

Embodiment 3

[0049] A kind of prawn feed and preparation technology thereof, comprises the following steps:

[0050] (1) In the pretreatment of raw and auxiliary materials, the block raw materials are crushed first, and then batched. After the raw materials enter the cleaning sieve, the impurities in the raw materials are separated, and then the iron filings are removed by the magnetic separator, which can not only ensure the quality of the feed, but also It can protect the equipment and prolong the life of the equipment.

[0051] (2) For prawn pellet feed, the particle size of the raw material is required to reach 100 mesh.

[0052] (3) The cv value of material mixing uniformity before granulation is lower than 7%.

[0053] (4) The humidity of the powder after adding water before tempering should be around 12%.

[0054] (5) The humidity of the material after conditioning is about 18%, the vapor pressure during conditioning is 550KPa, and the conditioning temperature is 95°C.

[0055] (...

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Abstract

The invention discloses a prawn feed and a preparation process thereof. The operation steps are as follows: 1. Pretreatment of raw and auxiliary materials: pulverization, sieving, removal of impurities, iron filings, and standby; 2. Superfine pulverization: pulverization to a certain particle size; 3. Mixing: The ultra-finely pulverized material is mixed several times to make the material have good processing performance; 4. Added water: the water content of the raw material has a significant impact on the yield and processing of the pellet feed, and the added water makes the powder humidity Moderate; 5. Tempering temperature and moisture: the feed is subjected to hydrothermal treatment, and the temperature and moisture during conditioning are mainly obtained by adding steam; 6. Granulation: adjust the gap between the pressure roller and the ring die, and Granulation is carried out at a certain temperature; 7. Post-curing: after the pellets leave the granulator, a post-curing process of heat preservation and tempering is carried out; 8. Cooling: the heat and part of the moisture of the feed are taken away by a large amount of cold air, and the cooled pellets Moisture content reaches a certain requirement. The invention can make the starch gelatinization degree high, the protein fully denatured, the loss of nutrients is less, the product has good digestion and absorption, is not easy to be lost in water, is not easy to pollute the water quality, and can also reduce energy consumption and equipment loss, high production efficiency and low product cost. Low, suitable for industrial production, and has a good application prospect.

Description

technical field [0001] The invention relates to a production process of aquaculture feed, in particular to a prawn feed and a preparation process thereof. Background technique [0002] Shrimp is deeply loved by consumers because of its fresh and tender meat and rich nutrition. Especially in recent years, along with the rapid development of my country's economy and the continuous improvement of people's living standards, various shrimp products have gradually entered the table of ordinary people. At the same time, the rise of tourism and the growth of foreign trade have further promoted the development of my country's shrimp farming and processing industries. [0003] The quality of shrimp feed determines the success or failure of the aquaculture industry. At present, there are mainly two forms of shrimp compound feed on the market: hard pellet feed and extruded feed. Hard pellet feed is mainly produced by flat die and ring die pellet mills. Due to the simple structure of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80
Inventor 季延滨李涛侯继明
Owner TIANJIN JINHAIMA AQUACULTURE
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