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Preparation method of euphausia superba powder

A technology of Antarctic krill and krill, which is applied in the field of preparation of Antarctic krill powder, can solve the problems of not taking into account production efficiency and protection of biologically active substances, and achieve the effects of shortening drying time, reducing energy consumption, and reducing adverse degradation

Active Publication Date: 2013-06-12
辽渔南极磷虾科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that drying under a single condition cannot take into account the production efficiency and the protection of biologically active substances, and improves the preparation method of shrimp powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Heat the caught fresh krill to 110°C in a microwave heater, stir and keep it for 5 minutes, so that the krill protein is fully coagulated. After cooking, centrifuge at 1200rpm for 5min. The dried krill is dried with a hot air dryer at 80°C to a water content of 10%, and then at 40°C to a water content of 3%. Utilize the pulverizer to pulverize the dried shrimp into 1-2mm shrimp powder. If it is directly dried at 80°C until the water content is 3%, the lipid acid value index in the shrimp powder is 13; the lipid acid value index in the shrimp powder prepared by this method is 8.5, which is reduced by 34.6%. If it is directly dried at 40°C to a water content of 3%, the lipid acid value index is 8.1, which is not much different from the shrimp meal prepared by this method. If it is dried at 40°C to a moisture content of 3%, the drying time is 6 hours, and the energy consumption is 5.7×10 4 KJ / Kg shrimp powder; the whole drying and heating time of this method is 3h; the ...

Embodiment 2

[0021] Directly heat the frozen krill to 120°C with steam in a cooking pot, stir and keep for 3 minutes, so that the krill protein is fully coagulated. After cooking, use a press to squeeze out most of the water, and then use a grinder to crush the krill into 2-4mm powder. Shrimp powder is dried at 70°C to a water content of 20% by an infrared dryer, and then dried at 59°C to a water content of 4%. If it is directly dried at 70°C to a water content of 4%, the lipid acid value index of the shrimp powder is 11; the lipid acid value index of the shrimp powder prepared by this method is 9, which is reduced by 18.2%. If it is directly dried at 59°C to a water content of 4%, the lipid acid value index is 9, which is the same as the shrimp powder prepared by this method. If it is dried at 59°C to a moisture content of 4%, the drying time is 5.1 hours, and the energy consumption is 4.1×10 4 KJ / Kg shrimp powder; the whole drying and heating time of this method is 2.7h; the energy con...

Embodiment 3

[0023] Heat the caught fresh krill to 90°C with water in a cooking pot, stir and keep it for 10 minutes to fully coagulate the krill protein. After cooking, centrifuge at 1000rpm for 10min. The dried krill is crushed into 5-7mm shrimp meal by using a pulverizer. Then use a microwave heating dryer to dry at 60°C to a moisture content of 15%, and then dry at 50°C to a moisture content of 6%. If it is directly dried at 60°C to a water content of 6%, the lipid acid value index of shrimp powder is 9; the lipid acid value index of shrimp powder prepared by this method is 8.1, which is reduced by 13.3%. If it is directly dried at 50°C to a water content of 6%, the lipid acid value index is 8.3, which is not much different from the shrimp meal prepared by this method. If it is dried at 50°C to a moisture content of 6%, the drying time is 4.5 hours; the entire drying and heating time of this method is 3 hours, compared with this method, the production efficiency is increased by 50%. ...

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Abstract

The invention relates to a method for preparing shrimp meal with small damage on euphausia superba in-vivo bioactive constituents, low consumption and high efficiency. The method comprises the following steps of: heating the euphausia superba to be at 90-120 DEG C and preserving for 3-10 minutes, so as to enable the protein to be sufficiently denatured and condensed; removing part of water in the euphausia superba in a mechanical mode, drying at 60-90 DEG C till the moisture content is 210-30%, and then drying at 40-59 DEG C till the moisture content is 2-9%; after the part of water in the euphausia superba is removed or dried in the mechanical mode till the moisture content is 2-9%, crushing the euphausia superba into shrimp meal. The equipment is simple, the field can be flexibly selected, the preparation method is moderate in condition, the bioactive substances of the euphausia superba and the preparation efficiency of the shrimp meal can be both considered to the maximum extent, and the preparation efficiency is greatly improved.

Description

technical field [0001] The invention relates to a preparation method for producing shrimp meal by utilizing Antarctic krill, in particular to a method for producing shrimp meal with higher production efficiency and less damage to biological active components in krill body. Background technique [0002] Antarctic krill is one of the largest single biological resources on the earth, with huge reserves, and the estimated total biomass is about 650-1000 million tons. Krill is rich in nutrients and contains a variety of biologically active substances. The protein content in krill dry base is 60-80%, the oil content is 5-30% (of which omega-3 unsaturated fatty acids account for 35-50% of the total fatty acids), and the astaxanthin content is about 0.01%. Therefore, Antarctic krill is listed as the fourth largest resource after grain\coal\oil, and is developed as an important high-quality biological resource for human beings. [0003] Studies have shown that omega-3 fatty acids h...

Claims

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Application Information

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IPC IPC(8): A23L1/33A23L1/29A23P1/06A23L17/40A23L33/00
Inventor 刘建君赵伟苏学锋王元好于龙谭玉喜李宣延
Owner 辽渔南极磷虾科技发展有限公司
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