Preparation method of sheepskin glue

Abstract

The invention discloses a preparation method of sheepskin musson. The preparation method comprises the following steps: S1, pretreatment; qualified sheepskin is weighed according to the batch requirement of the formula and enters a skin soaking and unhairing link, and then skin cutting and washing treatment is conducted; the pretreated sheepskin is washed with clear water for 5-6 hours, the sheepskin is blanched, the sheepskin is put into water for skin melting after skin blanching is completed, during skin melting, the sheepskin is put into water, the pressure is larger than 0.2 MPa, heat preservation is conducted for 160 minutes at the temperature of 115-119 DEG C, gelatin juice is discharged, skin melting is conducted twice under the same condition at the temperature of 110-115 DEG C, a sheepskin gelatin juice mixture is obtained, and the ratio of water to sheepskin during skin melting is 1.2-1.4: 1; the sheepskin gelatin block prepared by the invention is rich in a large amount of collagen, can moisten lung to arrest cough, protect cardiovascular health, maintain beauty and keep young, also contains a large amount of saturated fatty acid, mineral substances and vitamins, and can reduce cholesterol and improve immunity after being eaten.

Description

Technical Field

[0001] The invention relates to the technical field of sheepskin processing, and more specifically, to a method for preparing sheepskin glue. Background Art

[0002] Sheepskin is the skin of goats or sheep of the Bovine family. The skin of goats or sheep contains water, protein, fat and inorganic substances, with the latter two being very rare. The protein extracts that make up the epidermis are mainly keratin; the dermis is mainly composed of collagen and reticulin, in addition to elastin, albumin, globulin and mucin; sheepskin is rich in a variety of proteins, fats, amino acids, etc. The medicinal value of sheepskin is to remove blood stasis, treat weakness due to fatigue, lung and spleen deficiency, swelling and pain caused by falls, and bleeding caused by poison. It has good medicinal value.

[0003] In reality, we usually use sheepskin directly as leather, and rarely use it for food or medicine. Simply using sheepskin for industrial purposes will cause a great waste of the nutrition of the sheepskin. For this reason, we can process the sheepskin and extract the nutrients in the sheepskin. The existing animal skin glue is mainly extracted from donkey skin, and there is no method for extracting glue from sheepskin. For this reason, we propose a preparation method of sheepskin glue. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for preparing sheepskin glue.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for preparing sheepskin glue, comprising the following steps:

[0006] S1, pretreatment: weigh qualified sheepskin according to the batch requirements of the formula, enter the soaking and dehairing stage, and then cut and wash the skin after the end;

[0007] S2, deep treatment: rinse the pretreated sheepskin with clean water for 5-6 hours, blanch the sheepskin, put the sheepskin into water for degumming after blanching, put the sheepskin into water with a pressure greater than 0.2MPa, keep warm at 115-119°C for 160 minutes, release the glue, degumming twice at 110-115°C under the same conditions, and obtain a sheepskin glue mixture, wherein the ratio of water to sheepskin during degumming is 1.2-1.5.

[0009] S3, extracting glue juice: filtering and centrifuging the sheepskin glue juice mixture to obtain pre-treated glue juice, evaporating the pre-treated glue juice at normal pressure until the relative density reaches 1.10-1.15, putting it into a sandwich pot and continuing evaporation for 30 minutes to start removing impurities, and then performing foaming treatment to foam the glue solution until it is shiny, and then recovering the foam juice to obtain glue juice;

[0010] S4, mixed concentrated glue juice: pump the glue juice to the concentrated sandwich pot, then add rock sugar solution, dried ginger extract and soybean oil in turn, continue evaporation for about 3 hours, until the glue liquid hangs flags and keeps falling, stop heating, stop heating for 1 to 2 hours to produce glue, take samples for testing, and after passing the test, condense at room temperature for 4 to 6 hours, and freeze in cold storage for 15 to 19 hours;

[0011] S5, cutting and drying the glue: converting the frozen glue block into 14% moisture of dry glue according to the water content, converting the cutting amount, cutting the glue block according to the demand, and drying the glue block after cutting. When the moisture content of the glue block is ≤14%, collect the glue;

[0012] S6, sterilization and packaging: sterilize the dried rubber blocks, then carry out inner packaging first and then outer packaging.

[0013] Preferably, in S1, pretreatment, when soaking the sheepskin, the sheepskin is soaked in drinking water, and the water is changed twice a day until the cortex is obviously stratified and white in color. After leaving the pool, rinse for 5 to 6 hours, wash, and cut the whole skin into 30 cm squares for standby use.

[0014] Preferably, in S2, deep treatment, when the cut sheepskin is blanched, drinking water with a temperature of 60-70° C., which is twice the weight of the dry skin, is selected and kept warm for 40 minutes, and then rinsed and blanched twice more under the same conditions.

[0015] Preferably, in S3, in the step of extracting the gum juice, a quartz sand filter is used for filtration, and the filtrate enters a liquid storage tank after filtration. During the centrifugal treatment, the centrifugal flow rate is 30 to 50 kg / min, and the slag is discharged once every 50 minutes.

[0016] Preferably, in S4, in the mixed concentrated gum juice, rock sugar solution is prepared: a proper amount of rock sugar is weighed, then melted with water and passed through a 120-mesh sieve.

[0017] Preferably, in S4, in the mixed concentrated gum juice, a dried ginger extract is prepared: dried ginger is selected, washed, drained, put into an oil pan and fried until fragrant, then a proper amount of water is added, and then boiled for 30 minutes, and passed through a 120-mesh sieve to obtain a dried ginger extract.

[0018] Preferably, in S5, cutting and drying the glue, the glue drying treatment is as follows: (1) drying for 2 days, turning over once, drying for 3 days, turning over once, drying for about 4 days, and stopping; (2) sealing the glue for 24 hours, standing the box for 12 hours, inverting the box for 24 hours, and taking out the glue; (3) drying for 6-10 days, turning over the glue once every 3 days, sealing the box for 24 hours, standing the box for 12 hours, inverting the box for 24 hours, taking out the glue, and drying for another 6-10 days.

[0019] Preferably, after the glue is dried, the glue block is subjected to a glue wiping treatment, and the surface is wiped with a coarse cloth that has been sterilized by boiling pure water to make it polished and bright.

[0020] Preferably, the steps of mixing and concentrating the glue juice, cutting the glue, drying the glue, and sterilizing are all performed in a 300,000 square meter clean area.

[0021] Technical effects and advantages of the present invention:

[0022] 1. The present invention extracts glue juice after deep processing of sheepskin, and finally mixes and concentrates the glue juice again, so as to effectively extract nutrients in the sheepskin and concentrate the nutrients in the sheepskin. The sheepskin glue block prepared by the whole preparation method has better quality and good taste. The storage space can be reduced by repeatedly drying and stuffing the glue block after concentration, and the subsequent material can be directly fed for processing. The whole sheepskin glue method is simple and easy.

[0023] 2. The sheepskin glue block prepared by the present invention effectively retains the collagen in the sheepskin, can moisten the lungs and relieve cough, protect cardiovascular health, beautify and nourish the skin, and also contains a large amount of saturated fatty acids, minerals and vitamins. After consumption, it can reduce cholesterol and improve immunity. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] Preparation method of sheepskin glue:

[0027] S1, pretreatment; weigh qualified sheepskin according to the batch requirements of the formula, enter the soaking and dehairing stage, soak the sheepskin in drinking water, change the water twice a day, until the cortex is obviously stratified and the color is white, then take out of the pool, take out the hair on the surface of the sheepskin, then rinse for 5 to 6 hours, wash, cut the whole skin into 30 cm squares, rinse again for 5 to 6 hours to complete the skin washing process;

[0028] S2, deep treatment: rinse the pretreated sheepskin with clean water for 5-6 hours, blanch the skin, select drinking water twice the weight of the dry skin at 60-70°C, keep warm for 40 minutes, rinse, blanch the skin twice under the same conditions, put the sheepskin into water for skin dissolving after blanching, put the sheepskin into water with a pressure greater than 0.2MPa, keep warm at 115-119°C for 160 minutes, release the glue, and dissolve the skin twice under the same conditions at 110-115°C to obtain a sheepskin glue mixture, wherein the ratio of water to sheepskin during skin dissolving is 1.2-1.4:1;

[0029] S3, extracting glue juice: filtering the sheepskin glue juice mixture through a quartz sand filter, lüye4 enters a liquid storage tank, and then centrifugally treats the glue juice at a flow rate of 30-50 kg / min, and discharges slag once every 50 minutes, and then terminates the centrifugal treatment to pre-treat the glue juice, and evaporates the pre-treated glue juice at normal pressure until the relative density reaches 1.10-1.15, and then puts it into a sandwich pot to continue evaporating for 30 minutes to start impurity extraction, and then performs a foaming treatment to foam the glue liquid until the glue liquid is shiny, and then recover the foaming juice to obtain the glue juice;

[0030] S4, mixed concentrated glue:

[0031] (1) Preparation of rock sugar solution: Weigh an appropriate amount of rock sugar, melt it with water and pass it through a 120-mesh sieve.

[0032] (2) Preparation of dried ginger extract: Select dried ginger, wash it, drain it, put it into a frying pan and fry it until fragrant, then add appropriate amount of water and boil it for 30 minutes. Pass it through a 120-mesh sieve to obtain the dried ginger extract.

[0033] (3) Pump the gelatin juice to a concentration sandwich pot, then add rock sugar solution, dried ginger extract, and soybean oil in turn, and continue evaporating for about 3 hours until the gelatin liquid hangs flags and keeps falling. Stop heating and carry out gel treatment. Stop heating for 1 to 2 hours to produce gelatin, take samples for testing, and after passing the test, condense at room temperature for 4 to 6 hours and freeze in a cold storage for 15 to 19 hours;

[0034] S5, cutting and drying the glue: converting the frozen glue block into 14% of the moisture of the dry glue according to the water content, converting the cutting amount, cutting the glue block according to the demand, and drying the glue block after cutting;

[0035] Drying glue treatment: (1) Dry for 2 days, turn over once, dry for 3 days, turn over once, dry for about 4 days, and stop;

[0036] (2) Glue is sealed for 24 hours, the box is set up for 12 hours, the box is turned over for 24 hours, and the glue is discharged;

[0037] (3) Drying for 6-10 days, turning the glue once every 3 days, sealing the box for 24 hours, standing the box for 12 hours, inverting the box for 24 hours, unpacking the box, and drying it for another 6-10 days. When the moisture content of the glue block is ≤14%, collect the glue;

[0038] S6. After the glue is dried, the glue block is polished by using a coarse cloth that has been boiled and disinfected with pure water to wipe the surface to make it smooth and bright;

[0039] S7, sterilization and packaging: sterilize the dried rubber blocks, then carry out inner packaging first, then outer packaging, and finally inspection and storage.

[0040] Example 2

[0041] Preparation method of sheepskin glue:

[0042] S1, pretreatment; weigh qualified sheepskin according to the batch requirements of the formula, enter the soaking stage without removing the hair, soak the sheepskin with drinking water, change the water twice a day, until the cortex is obviously stratified and the color is white, then take out of the pool, take out the hair on the surface of the sheepskin, then rinse for 5 to 6 hours, wash, cut the whole skin into 30 cm squares, rinse again for 5 to 6 hours to complete the skin washing process;

[0043] S2, deep treatment: rinse the pretreated sheepskin with clean water for 5-6 hours, blanch the skin, select drinking water twice the weight of the dry skin at 60-70°C, keep warm for 40 minutes, rinse, blanch the skin twice under the same conditions, and put the sheepskin into water for skin dissolving after blanching. When dissolving, put the sheepskin into water with a pressure greater than 0.2MPa, keep warm at 115-119°C for 160 minutes, release the glue, dissolve the skin twice under the same conditions at 110-115°C to obtain a sheepskin glue mixture, wherein the ratio of water to sheepskin during skin dissolving is 1.2:1;

[0044] S3, extracting glue juice: filtering the sheepskin glue juice mixture through a quartz sand filter, lüye4 enters a liquid storage tank, and then centrifugally discharges slag once every 50 minutes at a centrifugal flow rate of 30kg / min, and ends the centrifugal treatment to pre-treat the glue juice, and evaporates the pre-treated glue juice at normal pressure until the relative density is 1.10-1.15, and then puts it into a sandwich pot to continue evaporating for 30 minutes to start impurity extraction, and then performs a foaming treatment to foam the glue liquid until the glue liquid is shiny, and then recover the foam juice to obtain the glue juice;

[0045] S4, mixed concentrated glue:

[0046] (1) Preparation of rock sugar solution: Weigh an appropriate amount of rock sugar, melt it with water and pass it through a 120-mesh sieve.

[0047] (2) Preparation of dried ginger extract: Select dried ginger, wash it, drain it, put it into a frying pan and fry it until fragrant, then add appropriate amount of water and boil it for 30 minutes. Pass it through a 120-mesh sieve to obtain the dried ginger extract.

[0048] (3) Pump the gelatin juice to a concentration sandwich pot, then add rock sugar solution, dried ginger extract, and soybean oil in turn, and continue evaporating for about 3 hours until the gelatin liquid hangs flags and keeps falling. Stop heating and carry out gel treatment. Stop heating for 1 to 2 hours to produce gelatin, take samples for testing, and after passing the test, condense at room temperature for 4 to 6 hours and freeze in a cold storage for 15 to 19 hours;

[0049] S5, cutting and drying the glue: converting the frozen glue block into 14% of the moisture of the dry glue according to the water content, converting the cutting amount, cutting the glue block according to the demand, and drying the glue block after cutting;

[0050] Drying glue treatment: (1) Dry for 2 days, turn over once, dry for 3 days, turn over once, dry for about 4 days, and stop;

[0051] (2) Glue is sealed for 24 hours, the box is set up for 12 hours, the box is turned over for 24 hours, and the glue is discharged;

[0052] (3) Drying for 6-10 days, turning the glue once every 3 days, sealing the box for 24 hours, standing the box for 12 hours, inverting the box for 24 hours, unpacking, and drying for another 6-10 days. When the moisture content of the glue block reaches 13%, collect the glue;

[0053] S6, Sterilization and Packaging: Sterilize the dried rubber blocks, then carry out inner packaging, then outer packaging, and finally inspection and storage.

[0054] Example 3

[0055] Preparation method of sheepskin glue:

[0056] S1, pretreatment; weigh qualified sheepskin according to the batch requirements of the formula, enter the soaking and dehairing stage, soak the sheepskin in drinking water, change the water twice a day, until the cortex is obviously stratified and the color is white, then take out of the pool, take out the hair on the surface of the sheepskin, then rinse for 5 to 6 hours, wash, cut the whole skin into 30 cm squares, rinse again for 5 to 6 hours to complete the skin washing process;

[0057] S2, deep treatment: blanch the pretreated sheepskin, select drinking water twice the weight of the dry skin at 60-70°C, keep warm for 40 minutes, rinse, blanch the sheepskin twice under the same conditions, and put the sheepskin into water for degumming after blanching. When degumming, put the sheepskin into water with a pressure greater than 0.2MPa, keep warm at 116°C for 160 minutes, release the glue, degumming twice under the same conditions at 116°C to obtain a sheepskin glue mixture, wherein the ratio of water to sheepskin during degumming is 1.3:1;

[0058] S3, extracting glue juice: filtering the sheepskin glue juice mixture through a quartz sand filter, lüye4 enters a liquid storage tank, and then centrifugally treats the glue juice at a flow rate of 30-50 kg / min, and discharges slag once every 50 minutes, and then terminates the centrifugal treatment to pre-treat the glue juice, and evaporates the pre-treated glue juice at normal pressure until the relative density reaches 1.12-1.14, and then puts it into a sandwich pot to continue evaporating for 30 minutes to start impurity extraction, and then performs a foaming treatment to foam the glue liquid until the glue liquid is shiny, and then recover the foaming juice to obtain the glue juice;

[0059] S4, mixed concentrated glue:

[0060] (1) Preparation of rock sugar solution: Weigh an appropriate amount of rock sugar, melt it with water and pass it through a 120-mesh sieve.

[0061] (2) Preparation of dried ginger extract: Select dried ginger, wash it, drain it, put it into a frying pan and fry it until fragrant, then add appropriate amount of water and boil it for 30 minutes. Pass it through a 120-mesh sieve to obtain the dried ginger extract.

[0062] (3) Pump the gelatin juice to a concentration sandwich pot, then add rock sugar solution, dried ginger extract, and soybean oil in turn, and continue evaporating for about 3 hours until the gelatin liquid hangs flags and keeps falling. Stop heating and carry out gel treatment. Stop heating for 1 to 2 hours to produce gelatin, take samples for testing, and after passing the test, condense at room temperature for 4 to 6 hours and freeze in a cold storage for 15 to 19 hours;

[0063] S5. Packaging: The rubber lumps are packed inner and outer, and finally inspected and put into storage.

[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing sheepskin glue, characterized in that: The steps include: S1, pretreatment: weigh qualified sheepskin according to the batch requirements of the formula, enter the soaking and dehairing stage, and then cut and wash the skin after the end; S2, deep treatment: rinse the pretreated sheepskin with clean water for 5-6 hours, blanch the sheepskin, put the sheepskin into water for degumming after blanching, put the sheepskin into water with a pressure greater than 0.2MPa, keep it at 115-119°C for 160 minutes, release the glue, degumming twice at 110-115°C under the same conditions, and obtain a sheepskin glue mixture, wherein the ratio of water to sheepskin during degumming is 1.2-1.4:1; S3, extracting glue juice: filtering and centrifuging the sheepskin glue juice mixture to obtain pre-treated glue juice, evaporating the pre-treated glue juice at normal pressure until the relative density reaches 1.10-1.15, putting it into a sandwich pot and continuing evaporation for 30 minutes to start removing impurities, and then performing foaming treatment to foam the glue solution until it is shiny, and then recovering the foam juice to obtain glue juice; S4, mixed concentrated glue juice: pump the glue juice to the concentrated sandwich pot, then add rock sugar solution, dried ginger extract and soybean oil in turn, continue evaporation for about 3 hours, until the glue liquid hangs flags and keeps falling, stop heating, stop heating for 1 to 2 hours to produce glue, take samples for testing, and after passing the test, condense at room temperature for 4 to 6 hours, and freeze in cold storage for 15 to 19 hours; S5, cutting and drying the glue: converting the frozen glue block into 14% moisture of dry glue according to the water content, converting the cutting amount, cutting the glue block according to the demand, and drying the glue block after cutting. When the moisture content of the glue block is ≤14%, collect the glue; S6, sterilization and packaging: sterilize the dried rubber blocks, then carry out inner packaging first and then outer packaging.

2. The method for preparing sheepskin glue according to claim 1, characterized in that: In S1, pretreatment, when soaking the sheepskin, soak the sheepskin in drinking water, change the water twice a day, until the cortex is obviously stratified and white, then take it out of the pool, rinse it for 5 to 6 hours, wash it, cut the whole skin into 30 cm squares, and set it aside.

3. The method for preparing sheepskin glue according to claim 1, characterized in that: In S2, deep treatment, when blanching the cut sheepskin, select drinking water with a temperature of 60-70° C., which is twice the weight of the dry skin, and blanch the skin for 40 minutes at a temperature of 60-70° C., then rinse it and blanch it twice under the same conditions.

4. The method for preparing sheepskin glue according to claim 1, characterized in that: In S3, in the process of extracting the gum juice, a quartz sand filter is used for filtration, and the filtrate enters a liquid storage tank. During the centrifugal treatment, the centrifugal flow rate is 30 to 50 kg / min, and the slag is discharged once every 50 minutes.

5. The method for preparing sheepskin glue according to claim 1, characterized in that: In S4, in the mixed concentrated gum juice, make rock sugar solution: weigh an appropriate amount of rock sugar, then melt it with water and pass it through a 120-mesh sieve.

6. The method for preparing sheepskin glue according to claim 1, characterized in that: In S4, in the mixed concentrated gum juice, prepare the dried ginger extract: select dried ginger, wash it, drain the water, put it into a frying pan and fry it until fragrant, then add appropriate amount of water, and then boil it for 30 minutes, pass it through a 120-mesh sieve, and obtain the dried ginger extract.

7. The method for preparing sheepskin glue according to claim 1, characterized in that: In S5, cutting and drying the glue, the glue drying process is as follows: (1) Dry for 2 days, turn over once, dry for 3 days, turn over once, dry for about 4 days, and stop; (2) Seal the glue for 24 hours, stand the box for 12 hours, turn the box upside down for 24 hours, and take out the glue; (3) Dry for 6-10 days, turn the glue over once every 3 days, seal the box for 24 hours, stand the box for 12 hours, turn the box upside down for 24 hours, take out the box, and dry for another 6-10 days.

8. The method for preparing sheepskin glue according to claim 1, characterized in that: After the glue is dried, the glue block should be polished and the surface should be wiped with a coarse cloth that has been boiled and disinfected with pure water to make it smooth and shiny.

9. The method for preparing sheepskin glue according to claim 1, characterized in that: The steps of mixing and concentrating the glue, cutting the glue, drying the glue and sterilizing are all carried out in the 300,000 clean area.