Disclosure of Invention
In view of the problems existing in the prior art, the invention provides a method for rapidly preparing salted egg yolk powder with strong gravel taste.
The technical scheme adopted by the invention for solving the technical problems is as follows:
A rapid preparation method of salted egg yolk sauce with strong gravel taste, which comprises the following steps:
(1) Separating the egg yolk from egg white without breaking membrane, and boiling with water and heating to obtain solidified egg yolk;
(2) Adding salt and water into the solidified yolk, and uniformly stirring to obtain yolk dispersion;
(3) Adding sugar and oil into the yolk dispersion liquid, and uniformly stirring to form salted egg yolk mixed liquid;
(4) Heating and parching to obtain salted egg yolk mixed solution to obtain salted egg yolk powder with strong gravel feeling.
As a preferable scheme of the invention, in the step (1), the water boiling condition is 80-100 ℃ and the heating time is 25-60min.
In the step (2), the cured yolk is further dried before adding salt and water to obtain dried yolk; the drying condition is 70-80deg.C, and the water content of the yolk is 60-80%.
In the preferred embodiment of the present invention, in the step (2), salt is dissolved in water and then mixed with yolk.
In the step (2), the egg yolk is boiled with water according to the weight of the egg yolk, and salt is added according to 1.6-6.6% of the weight of the egg yolk, and the egg yolk is stirred uniformly.
In the preferred embodiment of the present invention, in the step (3), the fat comprises egg oil, corn oil, soybean oil or peanut oil or a combination thereof, and the fat is added to promote salt penetration and salty-fragrant flavor formation, wherein the addition amount of the fat is 5-30% of the mass of the egg yolk dispersion.
In the preferred embodiment of the present invention, in the step (4), the sugar accounts for 0.5-5% of the weight of the yolk dispersion, so that the yolk gritty texture forming efficiency can be enhanced, and the sugar is maltodextrin, isomaltooligosaccharide, polydextrose, glucose syrup, fructose syrup or trehalose or a combination thereof.
In the preferred embodiment of the present invention, in the step (3), tea polyphenol is further added to the egg yolk dispersion, wherein the addition amount of the tea polyphenol is 0.1-0.3% of the weight of the egg yolk dispersion. The flavor of the high-fat food can be maintained, and the gel texture can be crosslinked, thereby being beneficial to improving the gritty mouthfeel.
In a preferred embodiment of the present invention, in the step (4), the water content in the fried food is less than 20%.
As a preferable scheme of the invention, after the salted egg yolk dispersion solution prepared in the steps (1) - (4) is fried to have the water content lower than 20%, the dispersion solution is dried by a spray drying technology, so that the quick-preparation salted egg yolk powder with the water content lower than 10% in the spray drying processing is obtained.
The invention provides a method for rapidly preparing salted egg yolk powder with strong gravel taste. The poached egg yolk has a gritty taste, which is favorable for forming salty egg yolk with strong gritty feeling; and the loose and discontinuous gel structure of the boiled egg yolk is easy to disperse in water, and is favorable for rapidly preparing salty egg yolk powder with strong gravel taste. The yolk is boiled in water in a dispersing way, salt is promoted to permeate inwards by adding the yolk, and oil is promoted to be discharged from the yolk by utilizing grease to form salty and fragrant flavor. The obtained salted egg yolk has the advantages of extremely short preparation period, strong gravel taste, abundant salty and fragrant flavor, low and controllable salt content, low water content and the like, is a good substitute for the traditional salted egg yolk powder, and is more beneficial to industrial production.
Compared with the prior art, the invention has the following beneficial effects:
(1) The obtained salted egg yolk powder has palatable salty flavor and strong gravel taste.
(2) The preparation period of the obtained salty yolk powder with strong gravel taste is extremely short and is less than 1 hour.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following examples, which are intended to illustrate the present invention and are not intended to represent or limit the scope of the invention, but are intended to provide a thorough understanding of the technical aspects and advantages of the present invention, as defined by the appended claims, by way of example only.
The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
Sensory evaluation of salted yolk powder
30 Persons (aged between 20-40 years, male/female ratio 1:1) were randomly selected for sensory evaluation analysis. The evaluation indexes comprise color, aroma concentration, taste, particle fineness and overall preference, wherein the full score of each index is 10, and the higher the score is, the better the score is.
Table 1 sensory evaluation table
Example 1
A method for rapidly preparing a salty yolk powder having a strong gritty mouthfeel, the method comprising the steps of:
(1) Heating shell-containing ovum gallus Domesticus at 100deg.C for 30min to obtain water-boiled ovum gallus Domesticus flavus;
(2) Weighing boiled egg yolk, adding 1.6% of salt and distilled water with equal mass according to weight, and uniformly stirring;
(3) Adding sugar and oil into the yolk dispersion liquid, and uniformly stirring to form salted egg yolk mixed liquid;
(4) Parching with slow fire to water content below 20% to obtain salty yolk powder with strong gravel feeling.
Preferably, in the step (2), the mass of the distilled water is equal to the mass of the boiled egg yolk, and the salt is dissolved in water and then mixed with the egg yolk.
Preferably, in the step (3), the vegetable oil is egg yolk oil, and the addition amount of the oil is 5% of the mass of salted egg yolk; the sugar accounts for 0.3% of the weight of the salted egg yolk mixed solution, and the sugar is maltodextrin.
Example 2
A method for rapidly preparing a salty yolk powder having a strong gritty mouthfeel, the method comprising the steps of:
(1) Heating shell-containing ovum gallus Domesticus at 100deg.C for 30min to obtain water-boiled ovum gallus Domesticus flavus;
(2) Weighing boiled egg yolk, adding 3.3% of salt and distilled water with equal mass according to weight, and uniformly stirring;
(3) Adding sugar and oil into the yolk dispersion liquid, and uniformly stirring to form salted egg yolk mixed liquid;
(4) Parching with slow fire to water content below 20% to obtain salty yolk powder with strong gravel feeling.
Preferably, in the step (2), the mass of the distilled water is equal to the mass of the boiled egg yolk, and the salt is dissolved in water and then mixed with the egg yolk.
Preferably, in the step (3), the vegetable oil is peanut oil, and the addition amount of the grease is 10% of the mass of salted egg yolk; the sugar accounts for 1.2% of the weight of the salted egg yolk mixed solution, and the sugar is oligomeric maltose.
Example 3
A method for rapidly preparing a salty yolk powder having a strong gritty mouthfeel, the method comprising the steps of:
(1) Heating shell-containing ovum gallus Domesticus at 100deg.C for 30min to obtain water-boiled ovum gallus Domesticus flavus;
(2) Weighing boiled egg yolk, adding 5.0% of salt and distilled water with equal mass according to weight, and uniformly stirring;
(3) Adding sugar and oil into the yolk dispersion, stirring to obtain salted egg yolk mixed solution, adding 20% vegetable oil into the yolk dispersion, and stirring to obtain salted egg yolk mixed solution;
(4) Parching with slow fire to water content below 20% to obtain salty yolk powder with strong gravel feeling.
Preferably, in the step (2), the mass of the distilled water is equal to the mass of the boiled egg yolk, and the salt is dissolved in water and then mixed with the egg yolk.
Preferably, in the step (3), the vegetable oil is peanut oil, and the addition amount of the grease is 20% of the mass of salted egg yolk; the sugar accounts for 4% of the weight of the salted egg yolk mixed solution, and the sugar is glucose syrup.
Example 4
Based on example 1, the difference is that in step (2), the dried yolk is obtained by further drying the cured yolk before adding salt and water; the drying condition is 75deg.C, and the water content of the yolk is 60%.
Example 5
Based on example 1, except that in step (3), tea polyphenol was further added to the yolk dispersion in an amount of 0.2% by weight of the yolk dispersion.
Example 6
Based on example 1, the difference is that in step (2), the dried yolk is obtained by further drying the cured yolk before adding salt and water; drying at 75deg.C until the water content of yolk is 60%;
In the step (3), tea polyphenol is also added into the egg yolk dispersion, wherein the addition amount of the tea polyphenol is 0.2% of the weight of the egg yolk dispersion.
Comparative example 1
Based on example 1, without the treatment of step 1), raw egg yolk was directly subjected to the operations of steps 2) to 5) to give comparative example 1. As is clear from example 1 and comparative example 1, the product prepared in comparative example 1 does not have the characteristic of a gritty product, and forms a gel product with elasticity, which does not meet the attribute requirements of salted egg yolk powder.
Comparative example 2
Based on example 1, step 3) was carried out without adding grease to prepare the product of comparative example 2. As is clear from examples 1 and 2, the product of comparative example 2 is powdery and has the salt content of salted egg yolk, but the product has weak salty and fragrant flavor and insufficient grease outflow content, and the gravel taste of the product in the eating process is poor, so that the requirements of strong gravel taste and salty egg yolk powder with high salty and fragrant flavor can not be met.
Comparative example 3
Based on example 1, the product of comparative example 3 was prepared without step 3) and without sugar treatment. As is clear from examples 1 and 3, the product of comparative example 3, although being in powder form and having a certain salty yolk content and salty-fragrant flavor, had poor gritty taste during eating, and could not meet the requirements of strong gritty taste and salty yolk powder with high salty-fragrant flavor.
TABLE 2 results of 30 human sensory evaluation of example salted egg yolk powder and comparative example salted egg yolk powder
As is clear from Table 1 and FIGS. 1 to 2, examples 1,2 and 3 produced salted egg yolk powder having a similar color and gritty texture with different proportions of oils (egg yolk oil, peanut oil) and sugars (maltodextrin, isomaltooligosaccharide, glucose syrup). Example 4 the gritty feel was enhanced by adding a drying treatment after fixation of the yolk. The gravel added with tea polyphenol in example 5 has stronger taste and flavor, and the salted egg yolk powder obtained by drying treatment after egg yolk fixation and adding tea polyphenol in example 6 has stronger gravel feel, better color and better flavor. This is probably because the drying treatment is advantageous for the oil extraction of egg yolk, the interaction between tea polyphenol and egg yolk is enhanced in combination with conformational change caused by high temperature, and the formed composite particles of the cavity structure are advantageous for capturing flavor substances and preventing volatilization thereof, thereby improving the flavor characteristics of salted egg yolk powder, and thus the preparation of salted egg yolk powder has strong gravel mouthfeel and flavor. Comparative example 1 the yolk ball structure associated with the granular sensation was destroyed without going through the process of fixing the yolk, and the obtained salted yolk powder was in the form of gel and had no gritty mouthfeel. The salted egg yolk phenomenon obtained in comparative examples 2 and 3, without adding oils or sugar, had a weak flavor and gritty feeling. In view of the above, the gritty feel and salty flavor of example 6 are preferable. In the salt content range, the preparation method can accurately control salt, the preparation time is only within 1 hour, and the gravel feel is strong.
The above embodiments are merely preferred embodiments of the present application, and should not be construed as limiting the present application, and the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without collision. The protection scope of the present application is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this application are also within the scope of the application.