Processing method of frozen fish after thawing

A processing method and technology for freezing fish, which are applied in the direction of preservation of meat/fish by freezing/cooling, the function of food ingredients, preservation of meat/fish with chemicals, etc., can solve the problem of reducing the freshness, taste and nutritional content of fish soup, and the ease of use. Deterioration and other problems, to achieve the effect of delicious and rich taste

Active Publication Date: 2020-12-15
邵阳市双清区湘和食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the fresher the raw fish used for fish soup, the better. However, in daily life, due to the limitation of the growth environment of fish and the fact that it is particularly easy to deteriorate, the fish ingredients that people can generally buy are all frozen. For fish soup, the use of frozen fish products to make soup greatly reduces the freshness, taste and nutritional content of fish soup. Therefore, how to maintain its freshness after slaughter or during freezing? The meat quality remains unchanged, so that the fish after long-term frozen storage can still maintain the same delicious meat quality as fresh fish, without affecting the processing, which is a problem currently being explored

Method used

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  • Processing method of frozen fish after thawing
  • Processing method of frozen fish after thawing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The present embodiment provides a kind of processing method after thawing of frozen fish, comprising the following steps:

[0027] (1) configure a fresh-keeping solution at normal temperature, which includes trisodium phosphate, 0.5% lemon slices, 1% sucrose and 0.1% salt with a mass percentage concentration configuration concentration of 5.5% in the fresh-keeping solution, and the lemon slices are placed in the The time in the fresh-keeping solution is longer than 2h.

[0028] (2) After the fish is slaughtered, first clean it with running water, then use the fresh-keeping solution to circulate and impregnate the fish body for 15 minutes, wherein the flow rate of the fresh-keeping solution is 5m / s, and then circulate the fish body under vacuum condition Flow immersion for 5 minutes, so that the pH value of the fish body is 7.

[0029] (3) Place the fish body soaked in the fresh-keeping solution in liquid nitrogen for 2 seconds, then freeze at -80°C for 20 minutes, and ...

Embodiment 2

[0035] A method for processing frozen fish after thawing, comprising the steps of:

[0036] (1) configure a fresh-keeping solution at normal temperature, which includes trisodium phosphate, 20% lemon slices, 20% sucrose and 10% salt with a mass percentage concentration configuration concentration of 6%, and the lemon slices are placed in the fresh-keeping solution. The time in the fresh-keeping solution is longer than 2h.

[0037] (2) After the fish is slaughtered, first clean it with running water, and then use the fresh-keeping solution to circulate and impregnate the fish body for 30 minutes, wherein the flow rate of the fresh-keeping solution is 10m / s, and then circulate the fish body under vacuum condition Flow immersion 10 minutes, make the pH value of fish body be 9.

[0038] (3) The fish body soaked in the fresh-keeping solution was placed in liquid nitrogen for 3 seconds, then frozen at -60°C for ~30min, and then stored at -15°C.

[0039] (4) Take a new fresh-keepin...

Embodiment 3

[0044] A method for processing frozen fish after thawing, comprising the steps of:

[0045] (1) Preserving solution is configured at normal temperature, which contains trisodium phosphate, 10% lemon slices, 11% sucrose and 5% salt with a mass percentage concentration configuration concentration of 5.6% in the fresh preserving solution, and the lemon slices are placed in the The time in the fresh-keeping solution is longer than 2h.

[0046] (2) After the fish is slaughtered, first use running water to clean it, then use the fresh-keeping solution to circulate and impregnate the fish body for 18 minutes, wherein the flow rate of the fresh-keeping solution is 8m / s, and then circulate the fish body under vacuum condition Flow immersion for 7 minutes, so that the pH value of the fish body is 8. The vacuum degree under the vacuum condition is -0.05MPa, and the fish body is always located in the fresh-keeping solution during the cyclic immersion process.

[0047] (3) The fish body ...

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Abstract

The invention discloses a processing method of frozen fish after being unfrozen. The processing method comprises the following steps of preparing a fresh keeping solution at normal temperature; performing cyclic flow immersing on a fish body with the fresh keeping solution; performing cryogenic storage on the immersed fish body; soaking the fish body after cryogenic storage in the fresh keeping solution, and then performing microwave treatment on the fish body and the fresh keeping solution together under the condition that microwaves are 200-300W until the fish body is unfrozen; taking the unfrozen fish body, performing decoction until the color of the fish body is changed, and fully stuffing lotus roots and bean curd thin sheets in the chest of the fish; and baking the fish, wherein thebaking comprises four stages which are sequentially performed, the temperature at the first stage is 50-60 DEG C, the baking temperature at the second stage is 100-160 DEG C, the baking temperature atthe third stage is 150-200 DEG C, and the baking temperature at the fourth state is 100-120 DEG C, and finally, obtaining the baked fish. The frozen fish is free from fishy smell, and the fish when being unfrozen is free from hard blocks, so that the fish meat of the baked fish is fine, smooth, soft and tenacious in mouth feel, and the fish meat is rich in palatable taste and fresh and deliciousin flavor.

Description

technical field [0001] The invention relates to a fish processing method, in particular to a processing method capable of effectively maintaining the meat quality of frozen fish and improving the flavor of grilled fish. Background technique [0002] Fish soup, fish is very nutritious, and its therapeutic effect should not be underestimated. Moreover, different types of fish have different health care functions, so they often become the main ingredient of many beautiful soups. Generally speaking, the fresher the raw fish used for fish soup, the better. However, in daily life, due to the limitation of the growth environment of fish and the fact that it is particularly easy to deteriorate, the fish ingredients that people can generally buy are all frozen. For fish soup, the use of frozen fish products to make soup greatly reduces the freshness, taste and nutritional content of fish soup. Therefore, how to maintain its freshness after slaughter or during freezing? The meat qual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L17/10A23L5/10A23L5/30A23B4/07A23B4/20A23B4/24
CPCA23B4/07A23B4/20A23B4/24A23V2002/00A23L5/10A23L5/34A23L17/10A23V2200/30A23V2250/60
Inventor 邓日表黄丽杰
Owner 邵阳市双清区湘和食品有限公司
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