CN103149248B - A kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity - Google Patents
A kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity Download PDFInfo
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Abstract
The invention discloses a kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity.The step of method is as follows: 1) put in rotary spherical digester by raw material donkey skin, adds water and inorganic base, sets the terminal conductivity value κ of skin residual liquid of scalding as 650 1100 μ S/cm；2) heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value, be designated as the 1st skin of scalding；3) in rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；4) when certain donkey-hide gelatin skin residual liquid conductivity value is less than the residual liquid terminal conductivity value set, reach donkey-hide gelatin skin-blanching process terminal, enter next process.The present invention can differentiate objective, reliably, rapidly and scalds skin process endpoint, reduce Colla Corii Asini product quality criticize and batch between difference, reduce process energy consumption, material consumption, labour force simultaneously, increase production capacity.
Description
Technical field
The present invention relates to a kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity in Colla Corii Asini production process.
Background technology
Colla Corii Asini is the hematonic that China is traditional, the solid gum being made up through techniques such as decoction, concentrations of donkey skin.Its composition is mainly protein and hydrolyzate polypeptide, aminoacid etc..Colla Corii Asini has the various health care functions such as promotion hemopoietic, resisting fatigue, hypermnesis.Its production process need to through 49 procedures, mainly include material processing, skin of scalding, change skin, filter, evaporate, carry foam, concentrate, condense, dry in the air the processing step such as glue, post processing.
The main component of Colla Corii Asini raw material donkey skin includes collagen protein, keratin, elastic fiber, fat, moisture etc., if the most treated direct storage is perishable rotten.And be to ensure that the raw material that Colla Corii Asini produces is sufficient, a large amount of donkey skin must be stored again.Therefore raw material needs to use a large amount of sodium chloride to pickle donkey skin before storing, and is subsequently placed in ventilation and stores.The donkey skin raw material used during actual production then contains a large amount of salt and sandstone granule.If such raw material is directly used in the production of Colla Corii Asini, substantial amounts of metal ion will be brought in product, products obtained therefrom content of ashes is the highest.
Whether the skin technique of scalding that Colla Corii Asini produces is the process washing away on raw material donkey skin the impurity such as the salt of attachment, sandstone granule, oil layer, can be smoothed out follow-up processing step, whether the quality of final Colla Corii Asini product can up to standard all have a major impact.The concrete operations mode of skin of scalding is: is put in rotary spherical digester by raw material donkey skin, adds water and the inorganic base of 0.5%-2.0% of 1-3 times, insulation 20-50min after being heated to 50-85 DEG C, and discharge is scalded skin residual liquid；In rotary spherical digester, add the water of equivalent the most every time, be incubated 10-30min after being heated to 45-80 DEG C, discharge skin residual liquid of scalding；Skin technique of scalding after being repeated 7-16 time terminates, and enters next process.
Judge that at present the method needing to scald several times skin process is: according to putting into before rotary spherical digester the character such as the quality of raw material donkey skin, color and luster, abnormal smells from the patient, empirically estimate the content of the impurity such as salt, sandstone granule, oil layer in raw material；Scald needed for determining this batch of raw material on this basis skin number of times.This determination methods has great subjectivity and uncertainty, does not evaluate the specific targets of raw materials quality at the end of skin technique of scalding.
Owing to skin of scalding needs a large amount of water are heated to higher temperature, skin of scalding too much not only can increase unnecessary energy consumption, extend and produce the hold facility time, it is also possible to is rubbed with the hands by the composition that the collagen protein etc. on donkey skin is not intended to be washed away in skin residual liquid of scalding and discharges.Skin of scalding then cannot clean the impurity such as oils and fats, salt in raw material very fewly, affects being smoothed out of subsequent production technique, impurity content in Colla Corii Asini product also can be made too high simultaneously, and quality cannot be up to standard.It addition, when estimating impurity content in raw material, simply it is as the criterion piling up outermost raw material, i.e. allows to accurately estimate the impurity content of these raw materials, the impurity content of all raw materials of this batch can not be represented；Therefore skin number of times of scalding determined by is not necessarily suitable for this batch donkey skin, this can cause different batches donkey skin quality after skin technique of scalding inconsistent, during subsequent production, produce unpredictable problem, also can affect product stability simultaneously, finally the quality of Colla Corii Asini product be produced harmful effect.
Summary of the invention
It is an object of the invention to overcome the deficiency of existing endpoint method, it is provided that a kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity objective, reliable, quick.
The step of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity is as follows:
1) raw material donkey skin is put in rotary spherical digester, add water and inorganic base, set the terminal conductivity value κ of skin residual liquid of scalding as 650-1100 μ S/cm；
2) heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value, be designated as the 1st skin of scalding；
3) in rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；
4) when certain donkey-hide gelatin skin residual liquid conductivity value is less than the residual liquid terminal conductivity value set, reach donkey-hide gelatin skin-blanching process terminal, enter next process.
Described terminal residual liquid conductivity value κ is 750-950 μ S/cm.Described inorganic base includes sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate.
The present invention compared with prior art has and provides the benefit that:
1) judge, with this concrete index of electrical conductivity, skin terminal of scalding, the degree that skin process of scalding is carried out can be reflected objectively, it is to avoid the negative effect of belt of scalding too much, very fewly；
2) using a certain setting value as the terminal of skin technique of scalding, raw material quality after skin technique of scalding is more consistent；
3) stop, when electrical conductivity is reduced to setting value, skin of scalding, it is to avoid unnecessary energy consumption and significant loss.
In a word, the method can differentiate objective, reliably, rapidly scalds skin process endpoint, reduce Colla Corii Asini product quality criticize and batch between difference, reduce process energy consumption, material consumption, labour force simultaneously, increase production capacity.
Accompanying drawing explanation
Fig. 1 is the implementing procedure figure of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity；
Fig. 2 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 1；
Fig. 3 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 2；
Fig. 4 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 3；
Fig. 5 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 4；
Fig. 6 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 5；
Fig. 7 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 6；
Fig. 8 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 7；
Fig. 9 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 8；
Figure 10 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 9；
Figure 11 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 10；
Figure 12 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 11；
Figure 13 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 12；
Figure 14 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 13；
Figure 15 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 14；
Figure 16 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 15；
Figure 17 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 16；
Figure 18 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 17；
Figure 19 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 18；
Figure 20 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 19；
Figure 21 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 20；
Figure 22 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 21；
Figure 23 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 22；
Figure 24 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 23；
Figure 25 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 24；
Figure 26 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 25；
Figure 27 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 26；
Figure 28 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 27；
Figure 29 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 28；
Figure 30 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 29；
Figure 31 is the skin residual liquid conductivity value variation diagram with skin number of times of scalding of scalding in embodiment 30.
Detailed description of the invention
The present invention is according to the requirement of skin technique of scalding, and this can reflect that the index of the plurality of impurities content such as metal ion in solution, particle judges to scald the terminal of skin technique to have selected electrical conductivity；Process endpoint is judged with concrete numerical indication, the most objective, reliable so that at the end of this technique, raw materials quality can be up to standard, and between the raw material of different batches, quality keeps consistent, also controls energy input simultaneously；It addition, conductivity value is an index that can quickly measure, it is easily achieved the On-line Control of technical process in the industrial production；And process endpoint cost is the lowest to use electrical conductivity to judge, has good prospects for commercial application.
The purpose of skin technique of scalding is to wash away the impurity such as salt on donkey skin, sandstone, oils and fats, has a major impact the indexs such as the content of ashes of product, water insoluble matter content.Following example present the situation of the index such as final products content of ashes, water insoluble matter content after the end point judging method using the present invention.
The step of a kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity is as follows:
1) raw material donkey skin is put in rotary spherical digester, add water and inorganic base, set the terminal conductivity value κ of skin residual liquid of scalding as 650-1100 μ S/cm；
2) heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value, be designated as the 1st skin of scalding；
3) in rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；
4) when certain donkey-hide gelatin skin residual liquid conductivity value is less than the residual liquid terminal conductivity value set, reach donkey-hide gelatin skin-blanching process terminal, enter next process.
Described terminal residual liquid conductivity value κ is 750-950 μ S/cm.Described inorganic base includes sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate, potassium bicarbonate.
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 750 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 712 μ S/cm, and less than 750 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.79%, water insoluble matter content is 1.20%, the most up to standard.
Embodiment 2
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 750 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 749 μ S/cm, and less than 750 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.77%, water insoluble matter content is 1.12%, the most up to standard.
Embodiment 3
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 750 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 14th time during skin, skin residual liquid conductivity value of scalding is 732 μ S/cm, and less than 750 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.80%, water insoluble matter content is 1.06%, the most up to standard.
Embodiment 4
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 800 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 10th time during skin, skin residual liquid conductivity value of scalding is 790 μ S/cm, and less than 800 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.86%, water insoluble matter content is 1.52%, the most up to standard.
Embodiment 5
Raw material donkey skin is put in rotary spherical digester, adds water and potassium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 800 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 11st time during skin, skin residual liquid conductivity value of scalding is 792 μ S/cm, and less than 800 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.81%, water insoluble matter content is 1.16%, the most up to standard.
Embodiment 6
Raw material donkey skin is put in rotary spherical digester, adds water and potassium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 800 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 11st time during skin, skin residual liquid conductivity value of scalding is 764 μ S/cm, and less than 800 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.77%, water insoluble matter content is 1.01%, the most up to standard.
Embodiment 7
Raw material donkey skin is put in rotary spherical digester, adds water and potassium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 850 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 7th time during skin, skin residual liquid conductivity value of scalding is 837 μ S/cm, and less than 850 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.88%, water insoluble matter content is 1.53%, the most up to standard.
Embodiment 8
Raw material donkey skin is put in rotary spherical digester, adds water and potassium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 850 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 10th time during skin, skin residual liquid conductivity value of scalding is 844 μ S/cm, and less than 850 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.81%, water insoluble matter content is 1.26%, the most up to standard.
Embodiment 9
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 850 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 11st time during skin, skin residual liquid conductivity value of scalding is 842 μ S/cm, and less than 850 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.87%, water insoluble matter content is 1.53%, the most up to standard.
Embodiment 10
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 900 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 855 μ S/cm, and less than 900 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.91%, water insoluble matter content is 1.59%, the most up to standard.
Embodiment 11
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 900 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 10th time during skin, skin residual liquid conductivity value of scalding is 898 μ S/cm, and less than 900 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.07%, water insoluble matter content is 1.68%, the most up to standard.
Embodiment 12
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 900 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 13rd time during skin, skin residual liquid conductivity value of scalding is 872 μ S/cm, and less than 900 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.82%, water insoluble matter content is 1.27%, the most up to standard.
Embodiment 13
Raw material donkey skin is put in rotary spherical digester, adds water and potassium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 950 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 859 μ S/cm, and less than 950 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.02%, water insoluble matter content is 1.65%, the most up to standard.
Embodiment 14
Raw material donkey skin is put in rotary spherical digester, adds water and potassium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 950 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 891 μ S/cm, and less than 950 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.00%, water insoluble matter content is 1.64%, the most up to standard.
Embodiment 15
Raw material donkey skin is put in rotary spherical digester, adds water and potassium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 950 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 10th time during skin, skin residual liquid conductivity value of scalding is 924 μ S/cm, and less than 950 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.92%, water insoluble matter content is 1.62%, the most up to standard.
Embodiment 16
Raw material donkey skin is put in rotary spherical digester, adds water and potassium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 650 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 12nd time during skin, skin residual liquid conductivity value of scalding is 623 μ S/cm, and less than 650 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.72%, water insoluble matter content is 0.98%, the most up to standard.
Embodiment 17
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 650 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 16th time during skin, skin residual liquid conductivity value of scalding is 638 μ S/cm, and less than 650 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.74%, water insoluble matter content is 0.99%, the most up to standard.
Embodiment 18
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 650 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 13rd time during skin, skin residual liquid conductivity value of scalding is 642 μ S/cm, and less than 650 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.75%, water insoluble matter content is 0.98%, the most up to standard.
Embodiment 19
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 700 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 12nd time during skin, skin residual liquid conductivity value of scalding is 677 μ S/cm, and less than 700 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.78%, water insoluble matter content is 1.10%, the most up to standard.
Embodiment 20
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 700 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 13rd time during skin, skin residual liquid conductivity value of scalding is 685 μ S/cm, and less than 700 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.73%, water insoluble matter content is 1.02%, the most up to standard.
Embodiment 21
Raw material donkey skin is put in rotary spherical digester, adds water and potassium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 700 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 11st time during skin, skin residual liquid conductivity value of scalding is 665 μ S/cm, and less than 700 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 0.76%, water insoluble matter content is 1.09%, the most up to standard.
Embodiment 22
Raw material donkey skin is put in rotary spherical digester, adds water and potassium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1000 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 992 μ S/cm, and less than 1000 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.03%, water insoluble matter content is 1.63%, the most up to standard.
Embodiment 23
Raw material donkey skin is put in rotary spherical digester, adds water and potassium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1000 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 7th time during skin, skin residual liquid conductivity value of scalding is 995 μ S/cm, and less than 1000 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.06%, water insoluble matter content is 1.35%, the most up to standard.
Embodiment 24
Raw material donkey skin is put in rotary spherical digester, adds water and potassium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1000 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 10th time during skin, skin residual liquid conductivity value of scalding is 952 μ S/cm, and less than 1000 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.04%, water insoluble matter content is 1.49%, the most up to standard.
Embodiment 25
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 1050 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 8th time during skin, skin residual liquid conductivity value of scalding is 1031 μ S/cm, and less than 1050 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.04%, water insoluble matter content is 1.67%, the most up to standard.
Embodiment 26
Raw material donkey skin is put in rotary spherical digester, adds water and sodium hydroxide, set the terminal conductivity value κ of skin residual liquid of scalding as 1050 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 8th time during skin, skin residual liquid conductivity value of scalding is 1020 μ S/cm, and less than 1050 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.07%, water insoluble matter content is 1.56%, the most up to standard.
Embodiment 27
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1050 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 8th time during skin, skin residual liquid conductivity value of scalding is 990 μ S/cm, and less than 1050 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.09%, water insoluble matter content is 1.66%, the most up to standard.
Embodiment 28
Raw material donkey skin is put in rotary spherical digester, adds water and sodium carbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1100 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 8th time during skin, skin residual liquid conductivity value of scalding is 1063 μ S/cm, and less than 1100 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.08%, water insoluble matter content is 1.69%, the most up to standard.
Embodiment 29
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1100 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 1005 μ S/cm, and less than 1100 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.08%, water insoluble matter content is 1.62%, the most up to standard.
Embodiment 30
Raw material donkey skin is put in rotary spherical digester, adds water and sodium bicarbonate, set the terminal conductivity value κ of skin residual liquid of scalding as 1100 μ S/cm；Discharge, after heating, insulation, skin residual liquid of scalding, measure its conductivity value, be designated as the 1st skin of scalding；In rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；Until scalding for the 9th time during skin, skin residual liquid conductivity value of scalding is 1067 μ S/cm, and less than 1100 μ S/cm, it is believed that without skin of scalding next time, skin technique of scalding is reached home, and enters next process.The Colla Corii Asini product content of ashes that this batch raw material finally gives is 1.11%, water insoluble matter content is 1.70%, the most up to standard.
Claims (2)
1. a donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity, it is characterised in that the step of method is as follows:
1) raw material donkey skin is put in rotary spherical digester, add water and inorganic base, set the terminal conductivity value κ of skin residual liquid of scalding as 650-1100 μ S/cm；
2) heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value, be designated as the 1st skin of scalding；
3) in rotary spherical digester, the most all add the water of equivalent, heat, be incubated after discharge and scald skin residual liquid, measure its conductivity value κ, and export the change curve of residual liquid conductivity value κ；
4) when certain donkey-hide gelatin skin residual liquid conductivity value is less than the residual liquid terminal conductivity value set, reach donkey-hide gelatin skin-blanching process terminal, enter next process.
A kind of donkey-hide gelatin skin-blanching process terminal method of discrimination based on electrical conductivity the most according to claim 1, it is characterised in that described terminal residual liquid conductivity value κ is 750-950 μ S/cm.
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| CN108168974A (en) * | 2017-12-27 | 2018-06-15 | 东阿阿胶股份有限公司 | A kind of method cleaned based on sodium ion judgement donkey hide |
| CN110658236A (en) * | 2019-10-24 | 2020-01-07 | 华润三九（雅安）药业有限公司 | Heishun tablet processing process Ca2+Content monitoring method and rinsing end point judging method |
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| CN102526106A (en) * | 2010-12-31 | 2012-07-04 | 山东东阿阿胶股份有限公司 | Donkey-hide gelatine raw powder and preparation method thereof |
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| 电导率在线检测技术在中药浓缩过程中的应用;吕丽丽等;《化工时刊》;20110331;第25卷(第03期);1-3 * |
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