CN101595907A - The method of freezing complete crab - Google Patents

Abstract

The present invention relates to a kind of preparation method of frozen food, specifically is a kind of method of freezing complete crab.The present invention is realized by following steps: raw material is selected, clean, and rinsing and draining, the row of weighing coils and freezes, pallet and packing refrigeration.Effect of the present invention is: and adopt present technique, can eliminate area and seasonal restriction, the crab goods that all can taste delicious food throughout the year in all parts of the country.

Description

The method of freezing complete crab

One, technical field:

The present invention relates to a kind of preparation method of frozen food, specifically is a kind of method of freezing complete crab.

Two, background technology:

In common freezing process, especially temperature-1 to-when 5C is following, moisture in the food forms ice crystal, though brilliant have mechanical damage to the microbial cell that is present in the food, promote protein denaturation, cause the effect of microbial death, but cell and the effect of institutional framework generation mechanical damage that makes food itself also arranged simultaneously, cause the diabrosis of part nutritional labeling and expose loss.Especially steamed crab very easily causes the loss of nutritional labeling in refrigerating process, reduces food quality.

Three, summary of the invention:

Purpose of the present invention is exactly the defective that exists at prior art, provides a kind of and can effectively preserve the steamed crab nutritional labeling, does not influence the method for the freezing complete crab of eating mouth feel.

The present invention is realized by following steps:

1) raw material is selected, and selects that 200g is above, complete, the unabroken steamed crab of crab claw is a raw material, rejects " moccasin crab " |, " seed crab " and other assorted crabs, fresh-keeping with layer ice, one deck ice one deck crab;

2) clean, clean raw material, can not embathe, in order to avoid influence quality with the clear water that flows.Simultaneously, reject the ropy steamed crab of leaving over;

3) rinsing and draining place the stainless steel wire cage with the steamed crab of putting in order, put into 2% cleaning brine ice and soak 15 seconds, then the drop water purification;

4) row of weighing dish with freeze, according to the different size row's dish of weighing, in dish, inject a small amount of liquid nitrogen, send into instant freezer then, the temperature that the temperature employing is about-35 ℃ is freezed, outbound when freezing to temperature-18 ℃;

5) pallet and packing refrigeration with nearly 0 ℃ frozen water pallet and plating water glaze, are used plastic film packaging earlier, and the carton of packing into then is good with packed in cases again, send into immediately in-20 ℃ the freezer to refrigerate.

Effect of the present invention is: and adopt present technique, can eliminate area and seasonal restriction, the crab goods that all can taste delicious food throughout the year in all parts of the country.

Four, the specific embodiment:

Below in conjunction with embodiment, the present patent application is described further:

Embodiment: this product is selected the HUANGHE ESTUARY steamed crab that is grown in the wetlands ecosystems of the Huanghe delta for use, and is pollution-free, quality is pure.This product is raw materials used all to be selected for use more than the 200g, crab claw is complete, unabroken HUANGHE ESTUARY steamed crab, through suitable processing, after-20 ℃ of left and right sides IQFs, adopt vacuum packing machine to vacuumize packing, under the coherent cryogenic conditions below subzero ten octaves Celsius, deliver to the cryogenic product in consumption place, its great advantage is preserved the original quality of food with low temperature fully, and not by any anticorrisive agent and additive, has the benefit of delicious food, convenience, health, health, nutrition, material benefit simultaneously.And the employing present technique can be eliminated area and seasonal restriction, makes the delicious crab goods of all can tasting throughout the year in all parts of the country.Have good market prospects.

Claims (1)

1, the method for freezing complete crab, it is characterized in that: it is realized by following steps:

1) raw material is selected, and selects that 200g is above, complete, the unabroken steamed crab of crab claw is a raw material, rejects " moccasin crab " |, " seed crab " and other assorted crabs, fresh-keeping with layer ice, one deck ice one deck crab;

2) clean, clean raw material, can not embathe, in order to avoid influence quality with the clear water that flows.Simultaneously, reject the ropy steamed crab of leaving over;

3) rinsing and draining place the stainless steel wire cage with the steamed crab of putting in order, put into 2% cleaning brine ice and soak 15 seconds, then the drop water purification;

4) row of weighing dish with freeze, according to the different size row's dish of weighing, in dish, inject a small amount of liquid nitrogen, send into instant freezer then, the temperature that the temperature employing is about-35 ℃ is freezed, outbound when freezing to temperature-18 ℃;

5) pallet and packing refrigeration with nearly 0 ℃ frozen water pallet and plating water glaze, are used plastic film packaging earlier, and the carton of packing into then is good with packed in cases again, send into immediately in-20 ℃ the freezer to refrigerate.