CN106307153A - Preparation method of preserved eggs - Google Patents
Preparation method of preserved eggs Download PDFInfo
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- CN106307153A CN106307153A CN201610656561.6A CN201610656561A CN106307153A CN 106307153 A CN106307153 A CN 106307153A CN 201610656561 A CN201610656561 A CN 201610656561A CN 106307153 A CN106307153 A CN 106307153A
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Abstract
The invention provides a preparation method of preserved eggs. The preparation method of the preserved eggs comprises the following steps: adding a copper salt or a zinc salt into a concentrated sodium hydroxide solution; heating the solution so as to obtain a mixed solution which is high in copper salt or zinc salt dissolvability and uniform in copper ion or zinc ion distribution; and finally, utilizing the mixed solution in the production of the preserved eggs so as to solve the technical problem of rapid and uniform dissolution of the copper salt or the zinc salt during the preparation processes of the preserved eggs. The preparation method of the preserved eggs disclosed by the invention is low in cost, and simple and convenient to operate, and greatly reduced in dosage of heavy metal salts. The prepared preserved eggs are safe, healthy, excellent in appearance, and relatively high in finished product rates.
Description
Technical field
The present invention relates to the industrial process of a kind of food-processing method, especially preserved egg.
Background technology
Preserved egg, also known as limed egg, preserved duck egg, ash bag egg etc., is a kind of Chinese tradition local flavor egg products.The fresh smooth mouth of mouthfeel, color
Fragrance all has one's own knack.The primary raw material making preserved egg has quick lime, soda, Sal, black tea, plant ass.Preserved egg is not only
Domestic consumers in general are liked, the most famous.
The ultimate principle that preserved egg makes is exactly to be soaked into by fowl egg in the feed liquid containing alkali and heavy metal ion, due to eggshell
Itself having goodish permeability, in brew process, alkali can enter wherein through eggshell and albuminous coat, adds albumen egg yolk
PH value.In this kind of pH environment, protein part can gradually become gel, and egg yolk fractions also can gradually solidify variable color,
Complete by the transformation of common fowl egg to finished product preserved egg.Simultaneously under the effect of alkali, the material in albumen and egg yolk is decomposed product
Raw hydrogen sulfide, and by albuminous coat, the outside unidirectional osmosis of eggshell.When hydrogen sulfide arrive eggshell surface time, i.e. can with in solution
Heavy metal ion generation precipitation, the pore on blocking eggshell, prevent alkali liquor to go successively in egg, the basicity in egg obtains
Effectively control, prevent the rotten head formed because basicity is too high inside preserved egg.
In the preserved egg process formula that China is traditional, heavy metal additive is generally lead oxide (Plumbum preparatium powder), because lead is a kind of
The heavy metal element of severe toxicity, the most existing formula is typically with zinc salt and the mantoquita replacement of low toxicity.
The industrial process of mantoquita or zinc salt formula preserved egg generally uses feed liquid method, generally comprises following steps:
(1) feed liquid is produced: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, be sufficiently stirred for being allowed to whole
Dissolve, then throw in quick lime by several times, stir after self-dissolving, add mantoquita or zinc salt.Add Sal after 3～4 hours, fully stir
Mix, after placing 24～48 hours, stir and pull residue out；
(2) charging is soaked: is joined by Ovum Anas domestica in feed liquid, soaks 22 days, takes out, and cleans to obtain finished product preserved egg；
In said method, the alkali concn of feed liquid is usually 4.0～5.0%, and mantoquita or zinc salt dissolve effect in this low concentration alkali
Rate is the lowest, is easily caused copper ion or zinc ion skewness in making container, makes preserved egg quality fluctuation relatively big, part eggshell
Surface produces stain, affects product condition.For this technological deficiency, common solution is to increase containing of mantoquita or zinc salt
Amount, but this way not only increases cost of manufacture, and also too high copper ion or zinc ion content can affect the food peace of preserved egg
Entirely.
Summary of the invention
The invention provides the manufacture method of a kind of preserved egg, first mantoquita or zinc salt joined in strong caustic,
Again solution is heated, obtain that mantoquita or zinc salt dissolubility be high, mixed liquor that copper ion or zinc ion are evenly distributed, finally will
Mixed liquor for the production of preserved egg, with solve in preserved egg manufacturing process mantoquita or zinc salt quickly, the technical problem of uniform dissolution.
Concrete technical scheme is: the manufacture method of a kind of preserved egg, including producing feed liquid step and charging soaking step, feed liquid
In there was added mantoquita or zinc salt, in producing feed liquid step, described mantoquita or zinc salt are charged first in sodium hydroxide solution obtain
Tetrahydroxy closes copper ion or tetrahydroxy closes the mixed liquor that zinc ion coexists with sodium hydroxide, and described mixed liquor is then added to feed liquid
In.In this mixed liquor, copper or zinc, presented in tetrahydroxy closes copper complex ion or tetrahydroxy closes zinc complex ion, are compared
In common preserved egg feed liquid, the distribution of metal ion is more uniform, diffusion rapider.It addition, the alkali of excess in predissolve liquid
GOLD FROM PLATING SOLUTION can be strengthened and belong to the stability of complex ion, enable this equally distributed state to obtain long term maintenance.
As preferably, described sodium hydroxide mass concentration is 5.0-50.0%, mantoquita or zinc salt and hydrogen in described mixed liquor
The molar ratio of sodium oxide is 1:4-100, and the preparation method of described mixed liquor is, mantoquita or zinc salt is mixed with sodium hydroxide solution
Heating under conditions of being incorporated in 50-100 DEG C is until it becomes clarifying blue solution.Inventor draws through overtesting, according to this kind
The mixed liquor that condition is produced, it is possible to increase preserved egg yield rate, effectively prevent the phenomenon of rotten head.
As preferably, the raw material producing feed liquid also includes sodium carbonate, black tea, quick lime, Sal, boiling water, when producing feed liquid
First sodium carbonate, black tea are put in making container, add boiling water and stir, add quick lime and stir, treating that quick lime is molten
After solving completely, more successively adding mixed liquor and Sal and be stirred, mixed liquor is separated by 3-4 hour with the joining day of Sal.
Generally, mixed liquor is 1:1000 with the mass ratio of boiling water, and remaining each material addition is identical with conventional formulation, i.e. carbon
The molar ratio of acid sodium and quick lime is less than 1:1.1, and black tea quantity is any, the temperature range of boiling water between 95-100 DEG C and with
The mass ratio of sodium carbonate is 15-18.8:1；
As preferably, described mantoquita, selected from copper sulfate, copper chloride, copper nitrate, Schweinfurt green, curpic carbonate, Copper hydrate, oxygen
Change at least one in copper.This type of mantoquita, containing not containing the anion affecting health, the preserved egg made is edible more pacifies
Entirely.
As preferably, described zinc salt, selected from zinc sulfate, zinc chloride, at least one in zinc acetate.This type of zinc salt, contains
Not containing the anion affecting health, the preserved egg made is edible safer.
As preferably, the molar ratio of described mantoquita or zinc salt and sodium hydroxide is 1:4-10.Can ensure that under this proportioning
Copper or zinc are completely dissolved and enter in feed liquid with solution state, and scatter rapidly, it is ensured that uniform the one of feed liquid formula
Cause property, effectively reduces the rotten head phenomenon of preserved egg.
The preserved egg manufacture method of the present invention, with low cost, easy and simple to handle, greatly reduce the usage amount of heavy metallic salt, system
The preserved egg safety and Health gone out, condition is excellent, has higher yield rate.
Detailed description of the invention
Embodiment 1:
(1) matched group:
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.50g, quick lime 4.4kg, Sal 0.77kg, black tea
End 50g, copper sulfate (solid) 25g, water 22kg.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, in addition copper sulfate to feed liquid, adds Sal, be sufficiently stirred for after 3--4 hour.
After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soak 22 days, take out, clean, inspection
Survey yield rate.
(2) 1 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.48g, quick lime 4.35kg, Sal 0.77kg, black tea
End 50g, copper sulfate (solid) 25g, water 21.8kg.
Copper sulfate (solid) 25g is dissolved in 200g water, takes 50% sodium hydroxide solution 32g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(3) 2 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.46g, quick lime 4.27kg, Sal 0.77kg, black tea
End 50g, copper chloride (solid) 25g, water 21.7kg.
Copper chloride (solid) 25g is dissolved in 200g water, takes 45% sodium hydroxide solution 70g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(4) 3 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.34g, quick lime 3.92kg, Sal 0.77kg, black tea
End 50g, Schweinfurt green (solid) 25g, water 21.6kg.
Schweinfurt green (solid) 25g is dissolved in 200g water, takes 35% sodium hydroxide solution 342g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(5) 4 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.40g, quick lime 4.1kg, Sal 0.77kg, black tea
End 50g, copper nitrate (solid) 25g, water 21.6kg.
Copper nitrate (solid) 25g is dissolved in 200g water, takes 40% sodium hydroxide solution 200g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(6) 5 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.29g, quick lime 3.8kg, Sal 0.77kg, black tea
End 50g, curpic carbonate (solid) 25g, water 21.4kg.
Curpic carbonate (solid) 25g is dissolved in 200g water, takes 30% sodium hydroxide solution 533g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(7) 6 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.23g, quick lime 3.6kg, Sal 0.77kg, black tea
End 50g, Copper hydrate (solid) 25g, water 21.2kg.
Copper hydrate (solid) 25g is dissolved in 200g water, takes 25% sodium hydroxide solution 800g, by abundant for above-mentioned solution
After mixing, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(8) 7 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.18g, quick lime 3.46kg, Sal 0.77kg, black tea
End 50g, Copper hydrate (solid) 25g, water 20.8kg.
Copper hydrate (solid) 25g is dissolved in 200g water, takes 20% sodium hydroxide solution 1200g, above-mentioned solution is filled
After dividing mixing, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured copper salt solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(9) 8 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.13g, quick lime 3.30kg, Sal 0.77kg, black tea
End 50g, zinc sulfate (solid) 25g, water 20.2kg.
Zinc sulfate (solid) 25g is dissolved in 200g water, takes 15% sodium hydroxide solution 1866g, by abundant for above-mentioned solution
After mixing, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured zinc solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(10) 9 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 1.07g, quick lime 3.15kg, Sal 0.77kg, black tea
End 50g, zinc chloride (solid) 25g, water 18.9kg.
Zinc chloride (solid) 25g is dissolved in 200g water, takes 10% sodium hydroxide solution 3200g, by abundant for above-mentioned solution
After mixing, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured zinc solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(11) 10 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 0.97g, quick lime 2.84kg, Sal 0.77kg, black tea
End 50g, zinc acetate (solid) 25g, water 14.0kg.
Zinc acetate (solid) 25g is dissolved in 200g water, takes 5% sodium hydroxide solution 8000g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured zinc solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(12) 11 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 0.97g, quick lime 2.84kg, Sal 0.77kg, black tea
End 50g, zinc acetate (solid) 25g, water 14.0kg.
Zinc acetate (solid) 25g is dissolved in 200g water, takes 3% sodium hydroxide solution 90g, above-mentioned solution is sufficiently mixed
After, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured zinc solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
(13) 12 groups
Material: FRESH DUCK EGGS 100, cleans, dries standby, soda 0.97g, quick lime 2.84kg, Sal 0.77kg, black tea
End 50g, zinc acetate (solid) 25g, water 14.0kg.
Zinc acetate (solid) 25g is dissolved in 200g water, takes 60% sodium hydroxide solution 0.8g, by the most mixed for above-mentioned solution
After conjunction, it is heated to 100 DEG C, is incubated 30min, obtain clarifying blue solution.
Preparation method: first soda, black tea end are put into cylinder bottom, then poured into by boiling water in cylinder, is sufficiently stirred for being allowed to all dissolve, so
Quick lime is thrown in rear gradation, stirs after self-dissolving, adds pre-configured zinc solution in feed liquid, adds food after 3--4 hour
Salt, is sufficiently stirred for.After placing 24--48 hour, stir and pull residue out.Ovum Anas domestica is joined in feed liquid, soaks 22 days,
Take out, clean, detect yield rate.
Experimental result:
Embodiment 1 preserved egg yield rate contrasts
(remarks: preserved egg yield rate refers to that preserved egg protein coagulation is good, without rotten head, the preserved egg number of soft yolk accounts for total experiment preserved egg number
Ratio)
Above-mentioned experimental data shows, utilizes the inventive method to prepare preserved egg, and yield rate, more than 80%, is significantly larger than routine
Method.During it addition, sodium hydroxide and slaine molar ratio numerical value are between 4-100, effect is notable；Sodium hydroxide and slaine
When molar ratio numerical value is between 4-10, effect is best.
Claims (6)
1. a manufacture method for preserved egg, including producing feed liquid step and charging soaking step, there was added mantoquita or zinc in feed liquid
Salt, is characterized in that: in producing feed liquid step, and described mantoquita or zinc salt are charged first in sodium hydroxide solution obtain tetrahydroxy and close
Copper ion or tetrahydroxy close the mixed liquor that zinc ion coexists with sodium hydroxide, and described mixed liquor is then added in feed liquid.
2. the manufacture method of preserved egg as claimed in claim 1, is characterized in that: the matter of sodium hydroxide in described sodium hydroxide solution
Amount concentration is 5.0-50.0%, and in described mixed liquor, the molar ratio of mantoquita or zinc salt and sodium hydroxide is 1:4-100, described mixed
The preparation method closing liquid is, by mixed to mantoquita or zinc salt and sodium hydroxide solution be incorporated in 50-100 DEG C under conditions of heating until its
Become clarifying blue solution.
3. the manufacture method of preserved egg as claimed in claim 1, is characterized in that: produces the raw material of feed liquid and also includes sodium carbonate, red
Tea, quick lime, Sal, first put into sodium carbonate, black tea in making container when producing feed liquid, add boiling water and stir, then adding
Enter quick lime and stir, after quick lime dissolves completely, more successively add mixed liquor and Sal and be stirred, mixed liquor and food
The joining day of salt is separated by 3-4 hour.
4. the manufacture method of preserved egg as claimed in claim 1, is characterized in that: described mantoquita, selected from copper sulfate, copper chloride, nitre
Acid copper, Schweinfurt green, curpic carbonate, Copper hydrate, at least one in copper oxide.
5. the manufacture method of preserved egg as claimed in claim 1, is characterized in that: described zinc salt, selected from zinc sulfate, zinc chloride, vinegar
At least one in acid zinc.
6. the manufacture method of preserved egg as claimed in claim 2, is characterized in that: mantoquita or zinc salt and hydroxide in described mixed liquor
The molar ratio of sodium is 1:4-10.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115191566A (en) * | 2022-06-15 | 2022-10-18 | 湖北杰梓旭农副产品有限公司 | Method for processing fine preserved eggs |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115191566A (en) * | 2022-06-15 | 2022-10-18 | 湖北杰梓旭农副产品有限公司 | Method for processing fine preserved eggs |
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Application publication date: 20170111 |