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High-protein fish meal and preparation method thereof

A high-protein, fishmeal technology, applied in the field of fishmeal, can solve the problems of reduced nutritional value of fishmeal, serious oil oxidation, and reduced fish oil quality, and achieve the effects of reducing fishmeal oxidation, small loss of nutrients, and long shelf life.

Inactive Publication Date: 2016-09-21
DONGGUAN LINSHI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dry pressing method is to complete the cooking and drying of the raw materials before pressing, and the water in the pressing is less, but after cooking and pressing, the oil is more oxidized, resulting in a decrease in the quality of fish oil, dark color of fish meal, and protein denaturation leading to a decrease in digestibility
The wet pressing method removes most of the oil by pressing before drying, and the fish oil and fish meal produced are lighter in color, but the nutritional value of fish meal is reduced, and the nutritional components are seriously lost, such as water-soluble protein, free amino acids, minerals and vitamins. loss in aqueous solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In the present embodiment, a kind of preparation method of high-protein fish comprises the following steps:

[0030] A. Select fish as raw material, wash and crush;

[0031] B, steaming and cooking the raw fish after stirring;

[0032] C. Adding isopropanol to the cooked raw fish as the extract for extraction treatment, the amount of isopropanol added is 1.5 times the weight of the raw fish, and after the extraction is completed, the isopropanol extract is removed; the extraction process step is repeated 3 times;

[0033] D. The extracted raw fish is vacuum freeze-dried, pulverized by a superfine pulverizer, and passed through a 100-mesh sieve to obtain high-protein fish meal.

[0034] Further, in the step B, the cooking process is performed by a cooking machine, the cooking temperature is 85° C., the cooking time is 18 min, and the speed of the cooking machine is 8 r / min.

[0035] Further, in the step B, after adding 0.03% ethoxyquinoline by the total weight of the r...

Embodiment 2

[0043] In the present embodiment, a kind of preparation method of high-protein fish comprises the following steps:

[0044] A. Select fish as raw material, wash and then crush;

[0045] B, steaming and cooking the raw fish after stirring;

[0046] C. Adding isopropanol to the raw fish after cooking as the extract for extraction treatment, the amount of isopropanol added is 1.8 times the weight of the raw fish, and after the extraction is completed, the isopropanol extract is removed; the extraction process step is repeated 3 times;

[0047] D. The extracted raw fish is vacuum freeze-dried, pulverized by a superfine pulverizer, and passed through a 100-mesh sieve to obtain high-protein fish meal.

[0048] Further, in the step B, the cooking process is performed by a cooking machine, the cooking temperature is 90° C., the cooking time is 14 minutes, and the speed of the cooking machine is 8 r / min. The invention promotes the separation of oil, water and protein by controlling t...

Embodiment 3

[0057] In the present embodiment, a kind of preparation method of high-protein fish comprises the following steps:

[0058] A. Select fish as raw material, wash and then crush;

[0059] B, steaming and cooking the raw fish after stirring;

[0060] C. Adding isopropanol to the cooked raw fish as the extract for extraction treatment, the amount of isopropanol added is 1.6 times the weight of the raw fish, and after the extraction is completed, the isopropanol extract is removed; the extraction process step is repeated 3 times;

[0061] D. The extracted raw fish is vacuum freeze-dried, pulverized by a superfine pulverizer, and passed through a 100-mesh sieve to obtain high-protein fish meal.

[0062] Further, in the step B, the cooking process is performed by a cooking machine, the cooking temperature is 88° C., the cooking time is 16 minutes, and the speed of the cooking machine is 10 r / min. The invention promotes the separation of oil, water and protein by controlling the tem...

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Abstract

The invention relates to the technical field of fish meal, in particular to high-protein fish meal and a preparation method thereof. The preparation method of the high-protein fish meal comprises the following steps: A, selecting fish as a raw material, cleaning and then crushing the fish; B, cooking the crushed raw material fish; C, adding the crushed raw material fish into isopropanol to carry out extraction treatment, removing the isopropanol after extraction, and repeating the step of extraction treatment for three times; D, after carrying out vacuum freeze drying on the extracted raw material fish, smashing the raw material fish through an ultrafine grinder to obtain the high-protein fish meal. The preparation method of the high-protein fish meal disclosed by the invention is simple in technology, convenient in operation control and stable in quality, and the isopropanol with high safety is used for extraction treatment, so that the fish meal is eaten safely; the nutritional ingredient of the fish meal in the preparation process is little in loss, the fishy smell of the fish can be effectively removed in the extraction process, the fat content is greatly reduced, the color of the fish meal is improved, and the prepared fish meal is high in protein level, full of nutriments and high in pepsase digestibility.

Description

technical field [0001] The invention relates to the technical field of fish meal, in particular to a high-protein fish meal and a preparation method thereof. Background technique [0002] Fishmeal is an important animal protein feed, rich in vitamins, minerals and growth factors, and plays an extremely important role in feed and other industries. The commonly used production methods of fishmeal are: dry pressing method and wet pressing method. The dry pressing method is to complete the cooking and drying of the raw materials before pressing, and the water in the pressing is less, but after cooking and pressing, the oil is more oxidized, resulting in a decrease in the quality of fish oil, dark color of fish meal, and protein denaturation leading to a decrease in digestibility. The wet pressing method removes most of the oil by pressing before drying, and the fish oil and fish meal produced are lighter in color, but the nutritional value of fish meal is reduced, and the nutri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/22A23J1/04
CPCA23J1/04
Inventor 林豪杰
Owner DONGGUAN LINSHI BIOTECH CO LTD
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