CN112472721B - Donkey-hide gelatin product and preparation method thereof - Google Patents

Donkey-hide gelatin product and preparation method thereof Download PDF

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CN112472721B
CN112472721B CN202011447836.8A CN202011447836A CN112472721B CN 112472721 B CN112472721 B CN 112472721B CN 202011447836 A CN202011447836 A CN 202011447836A CN 112472721 B CN112472721 B CN 112472721B
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donkey
hide gelatin
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hide
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高登锋
刘海滨
张淹
孙阳恩
金玉翠
刘维岩
李丽
王春艳
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Dong E E Jiao Co Ltd
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/04—Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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Abstract

The invention provides a donkey-hide gelatin product and a preparation method thereof, and particularly relates to the field of donkey-hide gelatin beverages. The invention provides a donkey-hide gelatin product which comprises the following components in parts by weight: 3 to 9 parts of flaky donkey-hide gelatin with the thickness of 0.4 to 0.6mm and the density of 0.4 to 0.9g/ml and 100 to 200 parts of yoghourt; the donkey-hide gelatin product can solve the problem of tooth sticking caused by taking donkey-hide gelatin, has unique crispy taste, eliminates fishy smell and is easy to accept by consumers; the problems that the discharging cannot be smooth, the spreading is not uniform and the thickness of the glue solution layer is thin and non-uniform under the conditions of high viscosity and high relative density of the donkey-hide gelatin glue solution and the relative density of the glue solution is too high are solved, and the situation that the glue solution in a partial area cannot be completely dried can be avoided.

Description

Donkey-hide gelatin product and preparation method thereof
Technical Field
The invention relates to the field of development of glue traditional Chinese medicine products, in particular to a donkey-hide gelatin product and a preparation method thereof.
Background
Donkey-hide gelatin is a solid gelatin prepared by decocting and concentrating dried or fresh skin of donkey of the family Equidae, and it is called "Tonic Sanbao" together with ren Shen and Lu Rong, which was recorded in Shen nong Ben Cao Jing and listed as the top grade, and has a long history. Donkey-hide gelatin is sweet in taste and neutral in nature, has wide application in clinic, and is especially widely applied in the aspects of enriching the blood, stopping bleeding, enhancing the immunity and the like.
The traditional donkey-hide gelatin blocks are mostly taken by methods of powdering, spray drying to prepare powder, melting or powdering and infusing because of hard texture. However, the donkey-hide gelatin powder which is directly chewed and taken can cause serious tooth sticking problem, and the fishy smell of the donkey-hide gelatin powder is heavy; the donkey-hide gelatin has more obvious fishy smell when being taken after being mixed with powder, and the consumers who do not contact the donkey-hide gelatin are difficult to accept the unique flavor of the donkey-hide gelatin in a short time. And the common donkey-hide gelatin powder is loose and fast in melting speed, and cannot provide chewing feeling.
Disclosure of Invention
In view of the above, the present invention provides a donkey-hide gelatin product and a preparation method thereof, wherein the donkey-hide gelatin product has a unique crispy texture, can solve the problem of tooth adhesion caused by the administration of donkey-hide gelatin, has no fishy smell, and is easily accepted by consumers.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention provides a donkey-hide gelatin product which comprises the following components in parts by weight: 3-9 parts of flaky donkey-hide gelatin and 100-200 parts of yoghourt; the thickness of the flaky donkey-hide gelatin is 0.4-0.6 mm; the density of the flaky donkey-hide gelatin is 0.4-0.9 g/ml.
Preferably, the water content of the flaky donkey-hide gelatin is 2-5 wt.%; the sheet donkey-hide gelatin comprises donkey-hide gelatin powder and donkey-hide gelatin granules; the particle size of the donkey-hide gelatin powder is more than 30 meshes; the particle size of the donkey-hide gelatin particles is 10-30 meshes.
Preferably, the mass of the donkey-hide gelatin particles in the flaky donkey-hide gelatin accounts for 80 to 90wt.% of the mass of the flaky donkey-hide gelatin.
The invention provides a preparation method of a donkey-hide gelatin product in the technical scheme, which comprises the following steps:
when the donkey-hide gelatin is eaten, the flaky donkey-hide gelatin and the yoghourt are mixed according to the proportion to obtain the donkey-hide gelatin product.
Preferably, the preparation method of the sheet-shaped donkey-hide gelatin comprises the following steps:
(1) Mixing colla Corii Asini material with water, and dissolving to obtain colla Corii Asini solution; the mass ratio of the donkey-hide gelatin raw material to water is 1;
(2) Drying the donkey-hide gelatin liquid to obtain a honeycomb-shaped colloid;
(3) And crushing the honeycomb colloid to obtain the flaky donkey-hide gelatin.
Preferably, the drying treatment is performed on a vacuum belt dryer; the running speed of a drying belt of the vacuum belt type dryer is 10-15 cm/min, and the rotating speed of a material distribution motor is 20-40 rpm.
Preferably, the vacuum degree of the drying treatment is 98-99 KPa, the temperature is 95-110 ℃, and the time is preferably 40-60 min
Preferably, the relative density of the colla corii asini liquid in the step (1) at 75 ℃ is 1.22-1.25.
Preferably, the width of the feed liquid outlet of the vacuum belt dryer is 1-2 cm.
Preferably, the material distribution head of the vacuum belt dryer is preferably a silica gel contact type material distribution head; the contact angle between the silica gel contact type cloth head and the drying belt on the vacuum belt type dryer is 40-45 degrees.
Has the beneficial effects that:
the invention provides a donkey-hide gelatin product, which is characterized in that donkey-hide gelatin is suspended in yoghourt and is wrapped by the yoghourt by combining the setting of the dosage of the flaky donkey-hide gelatin and the yoghourt with special texture characteristics, the thickness of the flaky donkey-hide gelatin and the density of the flaky donkey-hide gelatin, so that the problem of tooth adhesion is effectively solved, the donkey-hide gelatin product is matched with the yoghourt in flavor, the fishy smell of the donkey-hide gelatin is eliminated, and the product is endowed with unique taste.
Meanwhile, the donkey-hide gelatin with the lamellar structure forms unique crisp mouthfeel and compact and smooth surface structure, can reduce the water absorption rate of the donkey-hide gelatin, ensures that the donkey-hide gelatin cannot be quickly dissolved after being added into the yoghourt, can keep the shape and crisp feeling of a product, and can simultaneously ensure that the donkey-hide gelatin flavor is released hierarchically after the product enters the mouth.
The special innovative process developed by the invention can prepare the flaky donkey-hide gelatin with special texture and meeting the requirements of the invention, can avoid the conditions that the cloth nozzle cannot smoothly discharge materials, the spreading is uneven and the thickness of the glue layer is uneven due to overlarge relative density of the glue solution, and can also avoid the condition that the glue solution in partial areas cannot be thoroughly dried.
Detailed Description
The raw materials of the invention are obtained by conventional purchase by those skilled in the art, unless otherwise specified.
The invention provides a donkey-hide gelatin product which comprises the following components in parts by weight: 3-9 parts of flaky donkey-hide gelatin and 100-200 parts of yoghourt, preferably 4-8 parts of flaky donkey-hide gelatin and 110-190 parts of yoghourt; the thickness of the sheet donkey-hide gelatin is 0.4-0.6 mm, preferably 0.5-0.6 mm; the bulk density of the flaky donkey-hide gelatin is 0.4-0.9 g/ml, preferably 0.8-0.9 g/ml; the sheet donkey-hide gelatin and the yoghourt are independently packaged or integrally packaged in a separated mode. In the present invention, the moisture content of the flaked donkey-hide gelatin is preferably 2 to 5wt.%, more preferably 2.5 to 4.5wt.%; the flaky donkey-hide gelatin preferably comprises donkey-hide gelatin powder and donkey-hide gelatin granules; the particle size of the donkey-hide gelatin powder is preferably larger than 30 meshes, and the particle size of the donkey-hide gelatin powder is preferably 10-30 meshes, and more preferably 11-29 meshes; the flaky donkey-hide gelatin has a smooth surface and no pores visible to naked eyes under a 400-time electron microscope; in the sheet-like donkey-hide gelatin, the mass of the donkey-hide gelatin particles is preferably 80 to 90wt.%, and more preferably 82 to 88wt.%. In the present invention, the dissolution rate of the flaky donkey-hide gelatin is preferably 2 to 4min; the specific method for testing the dissolution speed is preferably as follows: mixing sheet colla Corii Asini with water; the temperature of the warm water is preferably 40 ℃; the dosage of the warm water is preferably 100ml; the dosage of the sheet donkey-hide gelatin is preferably 0.5g; the mixing mode is preferably stirring-free mixing; the test completion criterion of the dissolution rate is preferably a time required for the flaky donkey-hide gelatin to be completely dissolved without visible particles in a state without stirring. According to the invention, the thickness of the flaky donkey-hide gelatin and the mass ratio of donkey-hide gelatin powder to donkey-hide gelatin granules in the flaky donkey-hide gelatin are set within a certain range, so that the donkey-hide gelatin granules cannot be completely melted within 5min after the flaky donkey-hide gelatin and yoghourt are mixed, and a special crisp chewing taste is provided after the mixture enters the oral cavity; after the donkey-hide gelatin powder is taken into the oral cavity, the donkey-hide gelatin powder can be quickly melted to release gelatin fragrance, and the donkey-hide gelatin granules can be quickly melted within 5 seconds after being chewed or at the temperature of the oral cavity to release the strong gelatin fragrance of the donkey-hide gelatin, so that the donkey-hide gelatin fragrance is released in layers and is fused with the flavor of yoghourt to form the unique taste of the product.
In the present invention, the yogurt is not particularly limited, and may be a conventional yogurt.
The invention provides a preparation method of a donkey-hide gelatin product in the technical scheme, which comprises the following steps:
when the donkey-hide gelatin is eaten, the flaky donkey-hide gelatin and the yoghourt are mixed according to the proportion to obtain the donkey-hide gelatin product.
The temperature of the yogurt is preferably 0 to 10 ℃, more preferably 4 to 9 ℃ during the mixing of the present invention. In the invention, the eating method of the donkey-hide gelatin product preferably comprises the steps of directly eating after mixing or eating within 5min after mixing; the present invention is not limited to the mixing method, and the mixing method may be a method known to those skilled in the art.
In the present invention, the preparation method of the sheet-like donkey-hide gelatin preferably comprises the steps of:
(1) Mixing colla Corii Asini material with water, and dissolving to obtain colla Corii Asini solution; the mass ratio of the donkey-hide gelatin raw material to water is 1;
(2) Drying the donkey-hide gelatin liquid to obtain a honeycomb-shaped colloid;
(3) And crushing the honeycomb colloid to obtain the flaky donkey-hide gelatin.
According to the invention, the donkey-hide gelatin raw material and water are mixed and dissolved, and the mixing mass ratio of the donkey-hide gelatin raw material to the water is preferably 1. The invention can avoid the condition that the donkey-hide gelatin raw material can not be completely dissolved or the product flavor changes due to overlong heating time because of too little or too much water by adding the water with a specific proportion.
The invention dries the donkey-hide gelatin liquid to obtain the honeycomb colloid. The invention preferably carries out the drying treatment on a vacuum belt dryer; in the invention, the running speed of the drying belt of the vacuum belt type dryer is preferably 10-15 cm/min, and more preferably 11-14 cm/min; the cloth motor of the vacuum belt dryer has the rotating speed of 20-40 rpm, and more preferably 22-38 rpm; the vacuum degree of the drying treatment is preferably 98-99 KPa; the width of a feed liquid outlet of the vacuum belt type dryer is 1-2 cm, and more preferably 1.1-1.9 cm; the cloth head of the vacuum belt dryer is preferably a silica gel contact type cloth head, and the silica gel contact type cloth head is preferably made of food-grade silica gel; the contact angle between the silica gel contact type cloth head and a drying belt on a vacuum belt type dryer is 40-45 degrees, and more preferably 41-44 degrees.
In the invention, the thickness of the donkey-hide gelatin sheet is directly related to the density of the fed donkey-hide gelatin liquid, and the larger the density of the donkey-hide gelatin liquid is, the larger the thickness of a vacuole formed by the expansion of the donkey-hide gelatin liquid in a vacuum state is; the silica gel contact type material distribution head adopted by the invention is combined with the process technology, so that the conditions that the material distribution nozzle cannot smoothly discharge, the material spreading is uneven and the thickness of the glue solution layer is uneven due to overlarge density (namely more than 1.2) of the glue solution can be avoided, the glue solution in partial areas cannot be completely dried, and the glue solution in the central part of the discharged glue solution is further ensured to be uniformly dried.
The temperature of the drying treatment is preferably 95-110 ℃, and more preferably 96-108 ℃; the drying treatment time is preferably 40 to 60min, and more preferably 45 to 50min; the relative density of the colla corii asini liquid at 75 ℃ is preferably 1.22-1.25.
According to the invention, the donkey-hide gelatin liquid can be used for obtaining the honeycomb donkey-hide gelatin by adopting the vacuum belt dryer, so that crisp feeling in a donkey-hide gelatin product is ensured.
The invention crushes the honeycomb colloid to obtain the flaky donkey-hide gelatin. In the present invention, the pulverization is preferably low-speed pulverization; the rotation speed of the low-speed grinding is preferably 8 to 11Hz, more preferably 9 to 10Hz, and the mesh number of the grinding screen is preferably 10 meshes.
In order to further illustrate the present invention, the following examples are provided to describe the preparation of donkey-hide gelatin and the preparation method thereof in detail, but they should not be construed as limiting the scope of the present invention.
Example 1
The preparation method of the sheet donkey-hide gelatin comprises the following steps:
(1) Mixing and dissolving 1000g of donkey-hide gelatin raw material and 2000g of water, and concentrating to obtain donkey-hide gelatin liquid with the relative density of 1.22-1.25 at 75 ℃; the mass ratio of the donkey-hide gelatin raw material to water is 1;
(2) Drying the donkey-hide gelatin solution on a vacuum belt dryer with the condition parameters of the running speed of a drying belt set to 10cm/min and the rotating speed of a material distribution motor set to 30rpm at 98KPa and 95 ℃ for 60min to obtain a honeycomb-shaped colloid; wherein the cloth head of the vacuum belt dryer is a silica gel contact cloth head, the width of the feed liquid outlet is 2cm, and the contact angle is 45 degrees.
And (3) crushing the honeycomb colloid at a low speed of 8Hz to obtain the flaky donkey-hide gelatin.
The following examples and comparative examples all adopt the sheet-shaped donkey-hide gelatin prepared in this example.
Example 2
Preparing materials: 6 parts of flaky donkey-hide gelatin with the thickness of 0.4mm, the density of 0.5g/ml and the water content of 3wt.% and 150 parts of yoghourt. The flaky donkey-hide gelatin comprises donkey-hide gelatin powder and donkey-hide gelatin granules, wherein the grain diameter of the donkey-hide gelatin powder is more than 30 meshes, the grain diameter of the donkey-hide gelatin granules is 10-30 meshes, the mass of the donkey-hide gelatin granules in the flaky donkey-hide gelatin accounts for 80 wt% of the mass in the flaky donkey-hide gelatin, and the time required for completely dissolving the flaky donkey-hide gelatin into granules which can not be seen by naked eyes is 2.5min in a stirring-free state after 0.5g of the flaky donkey-hide gelatin is mixed with 100ml of warm water at 40 ℃.
Mixing 6 parts (6 g) of the prepared sheet donkey-hide gelatin with 150 parts (150 g) of yoghourt at 4 ℃, suspending the donkey-hide gelatin in the yoghourt, and wrapping the yoghourt to obtain the donkey-hide gelatin product.
Example 3
The same procedure as in example 2 was conducted except that the thickness of the sheet-like donkey-hide gelatin was 0.6mm.
Example 4
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 85wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.4mm.
Example 5
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin granules in the sheet-like donkey-hide gelatin was 85wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.6mm.
Example 6
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 90wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.4mm.
Example 7
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 90wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.6mm.
Comparative example 1
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 75wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.1mm.
Comparative example 2
The same procedure as in example 2, except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 75wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.2mm.
Comparative example 3
The same procedure as in example 2, except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 75wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.4mm.
Comparative example 4
The same procedure as in example 2, except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 75wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.6mm.
Comparative example 5
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 75wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.7mm.
Comparative example 6
The same procedure as in example 2 was conducted except that the thickness of the sheet-shaped donkey-hide gelatin was 0.1mm.
Comparative example 7
The same procedure as in example 2 was conducted except that the thickness of the sheet-shaped donkey-hide gelatin was 0.2mm.
Comparative example 8
The same procedure as in example 2 was conducted except that the thickness of the sheet-like donkey-hide gelatin was 0.7mm.
Comparative example 9
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 85wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.1mm.
Comparative example 10
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 85wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.2mm.
Comparative example 11
The same procedure as in example 2 was followed except that the mass of donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 85wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.7mm.
Comparative example 12
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin granules in the sheet-like donkey-hide gelatin was 90wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.1mm.
Comparative example 13
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin granules in the sheet-like donkey-hide gelatin was 90wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.2mm.
Comparative example 14
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 90wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.7mm.
Comparative example 15
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin granules in the sheet-like donkey-hide gelatin was 95wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.1mm.
Comparative example 16
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 95wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.2mm.
Comparative example 17
The same procedure as in example 2 was followed except that the mass of the donkey-hide gelatin granules in the sheet-like donkey-hide gelatin was 95wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.4mm.
Comparative example 18
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 95wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.6mm.
Comparative example 19
The same procedure as in example 2 was conducted except that the mass of the donkey-hide gelatin particles in the sheet-like donkey-hide gelatin was 95wt.%, and the thickness of the sheet-like donkey-hide gelatin was 0.7mm.
The donkey-hide gelatin products obtained in examples 2 to 7 and comparative examples 1 to 19 were tasted (the tasting was completed within 3min from the preparation of the donkey-hide gelatin products), and the donkey-hide gelatin products had 4 dimensions of crispness, tooth-sticking, swallowing discomfort and gel aroma layering, and the percentage ratios of the individual indices in the overall taste were 30%, 20% and 30%, respectively, and the number of tasters was 15. The taste results are shown in table 1.
Calculating the comprehensive taste score Q according to the following formula:
Figure GDA0002907055230000081
wherein the crispy feeling score value M1 is obtained through sensory evaluation, and the stronger the crispy feeling, the higher the score; the tooth-sticking sensation score M2 is obtained through sensory evaluation, and the higher the tooth-sticking degree is, the lower the score is; the swallowing discomfort score value M3 is obtained through sensory evaluation, and the stronger the discomfort, the lower the score; the gum aroma layering score value M4 is obtained through sensory evaluation, and the stronger the layering, the higher the score.
The full score of the M value single item is 10 points; l1, L2, L3 and L4 are respectively rejection screening coefficients of crisp feeling, tooth sticking feeling, swallowing comfort feeling and glue aroma layering feeling, when M is less than 5, the corresponding L value =0, and when M is more than or equal to 5, the corresponding L value =1.
The sensory evaluation criteria were: crisp feeling: 1 to 3 are not preferred; 4 to 6 are good; 7 to 10 are excellent; tooth sticking feeling: 1-3 obviously sticking teeth; 4-6 slightly sticking teeth; 7-10 has no obvious tooth-sticking feeling; swallowing comfort: 1-3 are obviously uncomfortable; 4-6 slight discomfort; 7-10 of the composition has no obvious discomfort; glue aroma layering: 1-3 layers are poor; 4-6 layers are good; the sense of layering is excellent from 7 to 10.
TABLE 1 tasting results of examples 2 to 7 and comparative examples 1 to 19
Figure GDA0002907055230000082
Figure GDA0002907055230000091
As can be seen from the sensory evaluation of examples 2 to 7 and comparative examples 1 to 19, the donkey-hide gelatin product prepared by the invention has the advantages of excellent crisp feeling, no obvious teeth sticking, no obvious discomfort in swallowing comfort and excellent crisp and fragrant layering. In the comparative examples 1 to 16, when the mass ratio of part of the donkey-hide gelatin powder to the donkey-hide gelatin powder or the thickness of the donkey-hide gelatin is higher than the range provided by the invention, the crisp mouthfeel can be maintained, but the mouthfeel is hard, and the donkey-hide gelatin cannot be quickly dissolved when entering the oral cavity, so that teeth are stuck, the gum fragrance cannot be effectively released, and the donkey-hide gelatin has great granular sensation during swallowing to cause throat discomfort; the mass ratio of the donkey-hide gelatin powder to the donkey-hide gelatin granules or the thickness of the donkey-hide gelatin is lower than the range provided by the invention, the dissolution speed of the donkey-hide gelatin is too high, and the crisp chewing feeling cannot be provided after the donkey-hide gelatin is eaten. Therefore, the donkey-hide gelatin product with excellent crisp feeling, no obvious teeth sticking, no obvious discomfort in swallowing comfort and excellent crisp and fragrant layering feeling can be obtained by controlling the mass of donkey-hide gelatin granules to be 80-90 wt% in the sheet donkey-hide gelatin, controlling the thickness of sheet powder to be 0.4-0.6 mm and setting other parameters.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

1. The donkey-hide gelatin product is characterized by comprising the following components in parts by weight: 3 to 9 parts of flaky donkey-hide gelatin and 100 to 200 parts of yoghourt; the thickness of the flaky donkey-hide gelatin is 0.4 to 0.6mm; the bulk density of the flaky donkey-hide gelatin is 0.4 to 0.9g/ml;
the water content of the flaky donkey-hide gelatin is 2-5wt.%; the sheet donkey-hide gelatin comprises donkey-hide gelatin powder and donkey-hide gelatin granules; the particle size of the donkey-hide gelatin powder is more than 30 meshes; the particle size of the donkey-hide gelatin particle is 10-30 meshes;
the mass of the donkey-hide gelatin granules in the flaky donkey-hide gelatin accounts for 80-90wt% of the mass of the flaky donkey-hide gelatin;
the flaky donkey-hide gelatin and the yoghourt are independently packaged or integrally packaged in a separated mode;
the preparation method of the donkey-hide gelatin product comprises the following steps:
mixing the flaky donkey-hide gelatin and the yoghourt according to the proportion to obtain the donkey-hide gelatin product;
the preparation method of the flaky donkey-hide gelatin comprises the following steps:
(1) Mixing colla Corii Asini material with water, and dissolving to obtain colla Corii Asini solution; the mass ratio of the donkey-hide gelatin raw material to water is 1 to 2 to 3;
(2) Drying the donkey-hide gelatin liquid to obtain a honeycomb-shaped colloid;
(3) And crushing the honeycomb-shaped colloid to obtain the flaky donkey-hide gelatin.
2. The method for preparing a donkey-hide gelatin product according to claim 1, wherein the drying treatment is performed on a vacuum belt dryer; the running speed of a drying belt of the vacuum belt type drying machine is 10 to 15cm/min, and the rotating speed of a cloth motor is 20 to 40rpm.
3. The production method according to claim 1 or 2, wherein the drying process is performed under a vacuum degree of 98 to 99KPa, at a temperature of 95 to 110 ℃, and for a time of 40 to 60min.
4. The preparation method according to claim 1, wherein the colla corii asini solution in the step (1) has a relative density of 1.22 to 1.25 at 75 ℃.
5. The production method according to claim 2, wherein the width of the feed liquid outlet of the vacuum belt dryer is 1 to 2cm.
6. The production method according to claim 2 or 5, wherein the distribution head of the vacuum belt dryer is a silica gel contact distribution head; the contact angle between the silica gel contact type cloth head and a drying belt on a vacuum belt type drying machine is 40-45 degrees.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002238452A (en) * 2001-02-16 2002-08-27 Yakult Honsha Co Ltd Stable solid yogurt and method for producing the same
CN101971987A (en) * 2010-09-19 2011-02-16 聊城大学 Flavor buccal oral donkey-hide gelatin series product and preparation method thereof
CN102524787A (en) * 2010-09-19 2012-07-04 聊城大学 Yoghourt-flavored sublingual oral donkey-hide glue series products and preparation method thereof
CN108926524A (en) * 2018-01-30 2018-12-04 东阿阿胶股份有限公司 A kind of instant piece of glue class product and preparation method thereof
JP2019104712A (en) * 2017-12-14 2019-06-27 富士フイルム株式会社 Donkey-hide gelatin-containing powder, tablet and food product that contain the same, and method of producing donkey-hide gelatin-containing powder

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002238452A (en) * 2001-02-16 2002-08-27 Yakult Honsha Co Ltd Stable solid yogurt and method for producing the same
CN101971987A (en) * 2010-09-19 2011-02-16 聊城大学 Flavor buccal oral donkey-hide gelatin series product and preparation method thereof
CN102524787A (en) * 2010-09-19 2012-07-04 聊城大学 Yoghourt-flavored sublingual oral donkey-hide glue series products and preparation method thereof
JP2019104712A (en) * 2017-12-14 2019-06-27 富士フイルム株式会社 Donkey-hide gelatin-containing powder, tablet and food product that contain the same, and method of producing donkey-hide gelatin-containing powder
CN108926524A (en) * 2018-01-30 2018-12-04 东阿阿胶股份有限公司 A kind of instant piece of glue class product and preparation method thereof

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