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A kind of secondary hair removal method in waterfowl slaughtering and processing

A water fowl and warm water technology, applied in poultry processing, slaughtering, meat processing, etc., to achieve high food safety, shorten the time of secondary hair removal, and improve the efficiency of secondary hair removal

Active Publication Date: 2022-07-22
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the secondary depilation method in the above-mentioned existing waterfowl processing, and to provide a secondary depilation method in the waterfowl slaughtering process

Method used

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  • A kind of secondary hair removal method in waterfowl slaughtering and processing
  • A kind of secondary hair removal method in waterfowl slaughtering and processing

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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1: a secondary hair removal method in waterfowl slaughtering and processing, comprising the following steps:

[0025] (1) Waterfowl pretreatment: drain the blood of the slaughtered waterfowl, and spray the carcass evenly with warm water at 40°C;

[0026] (2) scalding and mechanical dehairing: place the sprayed waterfowl carcasses in a scalding tank at 52°C, and after scalding for 6 minutes, place the waterfowl carcasses in a depilator for mechanical dehairing for 3 minutes;

[0027] (3) Preparation of enzymatic hydrolyzate solution: add 0.1 part of alkaline protease, 0.1 part of lipase, 10 parts of cysteine, and 1 part of water-retaining agent sodium alginate to 100 parts of deionized water in order by weight, and stir evenly Then, add acid-base regulator to adjust pH to 10 to obtain enzymatic hydrolysis solution;

[0028] (4) Soaking in enzymatic hydrolysis solution: heat the enzymatic hydrolysis solution to 30°C, soak the waterfowl carcass and the enzymati...

Embodiment 2

[0031] Embodiment 2: a secondary depilation method in waterfowl slaughtering and processing, comprising the steps:

[0032] (1) Waterfowl pretreatment: drain the blood of the slaughtered waterfowl, and spray the carcass evenly with warm water at 45°C;

[0033] (2) scalding and mechanical dehairing: place the sprayed waterfowl carcasses in a scalding tank at 55°C, and after scalding for 5 minutes, place the waterfowl carcasses in a depilator for mechanical dehairing for 4 minutes;

[0034] (3) Preparation of the enzymatic hydrolysate: 0.5 parts of neutral protease, 3 parts of lipase, 20 parts of cysteine, and 3 parts of water-retaining agent chitosan were added to 100 parts of deionized water in order by weight, and stirred evenly Then, add acid-base regulator to adjust pH to 8 to obtain enzymatic hydrolysis solution;

[0035] (4) Soaking in enzymolysis solution: before soaking the waterfowl carcass to the enzymolysis solution, spray the waterfowl carcass with hot water at 60°...

Embodiment 3

[0038] Embodiment 3: a kind of secondary depilation method in waterfowl slaughtering and processing, comprises the steps:

[0039] (1) Waterfowl pretreatment: drain the blood of the slaughtered waterfowl, and spray the carcass evenly with warm water at 50°C;

[0040] (2) scalding and mechanical dehairing: place the sprayed waterfowl carcasses in a scalding tank at 60°C, and after scalding for 5 minutes, place the waterfowl carcasses in a depilator for mechanical dehairing for 5 minutes;

[0041] (3) Enzymatic hydrolysis solution preparation: add 50 parts of alkaline protease, 5 parts of lipase, 50 parts of cysteine, and 5 parts of water-retaining agent xanthan gum to 100 parts of deionized water in order by weight, and stir evenly Then, add acid-base regulator to adjust pH to 5 to obtain enzymatic hydrolysis solution;

[0042] (4) Soaking in enzymatic hydrolysis solution: heat the enzymatic hydrolysis solution to 45°C, soak the waterfowl carcass and the enzymatic hydrolysis s...

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Abstract

The invention relates to a method for secondary hair removal in the slaughtering and processing of waterfowl, comprising the steps of (1) pretreatment of waterfowl; (2) scalding and mechanical dehairing; (3) preparation of an enzymatic hydrolysis solution; (4) soaking in the enzymatic hydrolysis solution ; (5) Waxing and dewaxing of rosin glyceride; (6) Bristle treatment. On the basis of the expansion of pores after the waterfowl carcass is blanched, the effect of the enzymatic hydrolysis solution on the hair follicles and dermal papilla is increased to promote the loosening of the hair roots, and then the adhesion properties of rosin glycerides are used to remove the carcass residual hair. The method of the invention is simple and easy to operate, adopts the method of enzyme synergy with rosin glyceride to carry out the secondary depilation of waterfowl, shortens the secondary depilation time, adopts safe and non-toxic processing raw materials, the depilation rate reaches more than 98%, and the waterfowl carcass has no yellow skin residue. The processed waterfowl carcasses have good appearance quality, high edible safety, and meet consumers' requirements for waterfowl meat products.

Description

technical field [0001] The invention relates to a secondary hair removal method in the slaughtering and processing of waterfowl, and belongs to the technical field of poultry processing. Background technique [0002] Waterfowl feathers have various shapes, mainly divided into positive feathers, flying feathers and down feathers, which cover different parts of the body surface and play the role of waterproofing and heat preservation. It is generally believed that the positive feathers and flying feathers grow in the primary hair follicles, the hair follicles are deeper and the hair bulbs are larger. Down feathers grow in secondary hair follicles, which are shallower and smaller in size. Due to the high density and different types of waterfowl feathers, the types, structures and arrangements of growth follicles are different, resulting in different degrees of difficulty in depilation of waterfowl. [0003] Depilation of waterfowl is an important part of slaughtering and proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A22C21/04A22C21/00
CPCA22C21/04A22C21/00
Inventor 马晶晶耿志明邹烨杨静杨彪卞欢李金平王道营徐为民
Owner JIANGSU ACAD OF AGRI SCI