Pickling method for fast pickling salted duck eggs in laser etching assistance way and implementation system thereof

Abstract

The invention relates to a pickling method for fast pickling salted duck eggs in a laser etching assistance way. The method comprises the following steps of (1) cleaning and grading of fresh eggs; (2)preparation of saturated salt solution; (3) laser etching of fresh eggs: etching a plurality of points on the surfaces of egg shells by a laser etching machine with the etching depth no more than 1 / 3to 1 / 2 of the egg shell thickness; (4) pickling of fresh eggs; (5) cleaning and drying: cleaning the pickled salted eggs by clean water to remove salt stains on the surfaces of the egg shells; performing drying; (6) packaging: performing vacuum independent packaging on the dried salted eggs by a vacuum packaging machine; (7) sterilization and cooking: performing high-temperature steam sterilization on the salted eggs subjected to vacuum packaging; meanwhile, cooking the eggs to the cooked states to obtain the salted duck eggs with proper salty and delicious mouthfeel. The method has the advantages that laser is used for pretreating the egg shells; the seepage area of sodium chloride solution is greatly increased; the seepage speed of the sodium chloride solution is accelerated; the pickling time of salted eggs is greatly shortened, so that the salt degree distribution is uniform; the egg yolk oil yield, the product uniformity and the salted egg quality are improved.

Description

technical field

[0001] The invention belongs to the technical field of food and relates to the preparation of salted eggs, in particular to a laser etching-assisted pickling method for quickly pickling salted duck eggs and an implementation system thereof. Background technique

[0002] Salted eggs, also known as salted eggs, salted eggs, and flavored eggs, have the characteristics of unique flavor, convenient eating, and rich nutrition. They are traditional characteristic egg products in my country and have a wide market demand. The traditional pickling methods of salted eggs mainly include salt water immersion method, salt mud coating method and grass ash method. Among them, the salt water immersion method has the characteristics of fast pickling speed, simple operation, hygienic convenience, and reusable salt water after treatment. In the production of enterprises, the method of pickling with high-concentration brine is usually used. Salt concentration and pickling temper...

Examples

Embodiment 1

[0039] A kind of rapid pickling method for salted duck eggs assisted by traditional soaking method by laser etching, the specific steps are as follows:

[0040] (1) Cleaning and grading of fresh eggs: wash the duck eggs with clean water, check and remove runny eggs, cracked eggs, loose yolk eggs, and mildewed eggs, and grade the dried duck eggs according to their weight, and put them in with a volume fraction of Soak in 3% citric acid solution for 15 minutes, wash off the outer membrane of the eggshell and set aside;

[0041] (2) Preparation of saturated salt water: sterilize the drinking water with an ultraviolet sterilizer, add the calculated sodium chloride, stir continuously until the sodium chloride dissolves to obtain a saturated solution, filter, remove impurities, and cool for subsequent use;

[0042](3) Laser engraving of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment....

Embodiment 2

[0048] A kind of rapid pickling method of salted duck eggs assisted by vacuum decompression method by laser etching, the specific steps are as follows:

[0049] (1) Wash the duck eggs with clean water, check and remove the runny eggs, cracked eggs, loose yolk eggs, and moldy eggs, grade the dried duck eggs according to their weight, and put them into a citric acid solution with a volume fraction of 5%. Soak for 10 minutes, wash off the dirt and eggshell membrane outside the eggshell and set aside;

[0050] (2) Preparation of saturated salt water: sterilize drinking water with an ultraviolet sterilizer, add calculated sodium chloride, constantly stir to obtain saturated salt water, filter, remove impurities, and cool for subsequent use;

[0051] (3) Laser etching of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment. Use the egg tray of the laser etching machine to fix one end of t...

Embodiment 3

[0057] A kind of rapid pickling method for salted duck eggs with laser etching assisted pressurization method, the specific steps are as follows:

[0058] (1) Cleaning and grading of fresh eggs: wash the duck eggs with clean water, check and remove runny eggs, cracked eggs, loose yolk eggs, and mildewed eggs, and grade the dried duck eggs according to their weight, and put them in with a volume fraction of Soak in 2% citric acid solution for 15 minutes, wash off the outer membrane of the eggshell and set aside;

[0059] (2) Preparation of saturated salt water: sterilize drinking water with an ultraviolet sterilizer, add calculated sodium chloride, constantly stir to obtain saturated salt water, filter, remove impurities, and cool for subsequent use;

[0060] (3) Laser etching of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment. Use the egg tray of the laser etching machine to fi...

technical field

[0001] The invention belongs to the technical field of food and relates to the preparation of salted eggs, in particular to a laser etching-assisted pickling method for quickly pickling salted duck eggs and an implementation system thereof. Background technique

[0002] Salted eggs, also known as salted eggs, salted eggs, and flavored eggs, have the characteristics of unique flavor, convenient eating, and rich nutrition. They are traditional characteristic egg products in my country and have a wide market demand. The traditional pickling methods of salted eggs mainly include salt water immersion method, salt mud coating method and grass ash method. Among them, the salt water immersion method has the characteristics of fast pickling speed, simple operation, hygienic convenience, and reusable salt water after treatment. In the production of enterprises, the method of pickling with high-concentration brine is usually used. Salt concentration and pickling temper...

Examples

Embodiment 1

[0039] A kind of rapid pickling method for salted duck eggs assisted by traditional soaking method by laser etching, the specific steps are as follows:

[0040] (1) Cleaning and grading of fresh eggs: wash the duck eggs with clean water, check and remove runny eggs, cracked eggs, loose yolk eggs, and mildewed eggs, and grade the dried duck eggs according to their weight, and put them in with a volume fraction of Soak in 3% citric acid solution for 15 minutes, wash off the outer membrane of the eggshell and set aside;

[0041] (2) Preparation of saturated salt water: sterilize the drinking water with an ultraviolet sterilizer, add the calculated sodium chloride, stir continuously until the sodium chloride dissolves to obtain a saturated solution, filter, remove impurities, and cool for subsequent use;

[0042](3) Laser engraving of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment....

Embodiment 2

[0048] A kind of rapid pickling method of salted duck eggs assisted by vacuum decompression method by laser etching, the specific steps are as follows:

[0049] (1) Wash the duck eggs with clean water, check and remove the runny eggs, cracked eggs, loose yolk eggs, and moldy eggs, grade the dried duck eggs according to their weight, and put them into a citric acid solution with a volume fraction of 5%. Soak for 10 minutes, wash off the dirt and eggshell membrane outside the eggshell and set aside;

[0050] (2) Preparation of saturated salt water: sterilize drinking water with an ultraviolet sterilizer, add calculated sodium chloride, constantly stir to obtain saturated salt water, filter, remove impurities, and cool for subsequent use;

[0051] (3) Laser etching of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment. Use the egg tray of the laser etching machine to fix one end of t...

Embodiment 3

[0057] A kind of rapid pickling method for salted duck eggs with laser etching assisted pressurization method, the specific steps are as follows:

[0058] (1) Cleaning and grading of fresh eggs: wash the duck eggs with clean water, check and remove runny eggs, cracked eggs, loose yolk eggs, and mildewed eggs, and grade the dried duck eggs according to their weight, and put them in with a volume fraction of Soak in 2% citric acid solution for 15 minutes, wash off the outer membrane of the eggshell and set aside;

[0059] (2) Preparation of saturated salt water: sterilize drinking water with an ultraviolet sterilizer, add calculated sodium chloride, constantly stir to obtain saturated salt water, filter, remove impurities, and cool for subsequent use;

[0060] (3) Laser etching of fresh eggs: code the duck eggs processed in step (1) into the conveyor belt, and send them to the laser engraving machine for eggshell pretreatment. Use the egg tray of the laser etching machine to fi...

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