CN104304645A - Device and method for dry sterilization of protein raw material and obtained protein powder - Google Patents
Device and method for dry sterilization of protein raw material and obtained protein powder Download PDFInfo
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- CN104304645A CN104304645A CN201410567725.9A CN201410567725A CN104304645A CN 104304645 A CN104304645 A CN 104304645A CN 201410567725 A CN201410567725 A CN 201410567725A CN 104304645 A CN104304645 A CN 104304645A
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Abstract
The invention relates to a device and method for dry sterilization of a protein raw material and obtained protein powder. The method comprises the following steps: performing fully-sealed drying by using an evaporating pot; putting a protein raw material into the evaporating pot from a feed opening of the evaporating pot; performing vacuumizing treatment by using a vacuum pump of the evaporating pot; then starting a stirring device in the evaporating pot and a microwave generator positioned on a side surface of the pot body to perform dry sterilization; and discharging from a discharge opening of the pot body. The stirring manner in the evaporating pot is three-dimensional stirring which ensures that the raw material is dried more uniformly, meanwhile, the drying temperature is relatively low, and the drying power is high to ensure the nutrition of protein; besides, the protein powder prepared from the protein raw material dried by the method disclosed by the invention is rich in nutrition, is convenient to preserve and cannot mildew easily. The drying device disclosed by the invention is easy to operate, and the dry sterilization is low in water residue, thorough in sterilization, high in efficiency and high in drying power, so that the drying device is favorable for large-scale application in the food industry.
Description
Technical field
The invention belongs to food processing field, relate to the protein powder of a kind of dry sterilization device of protein raw material, method and acquisition.
Background technology
Protein is the material base of all life, is the important component part of body cell, is the primary raw material that tissue upgrades and repairs.Along with the raising of human living standard, high protein, low fat become modern consumption new concept, and on market, proteinaceous food is countless, and the health food supplementing protein is also fast-selling gradually.In National Standard of the People's Republic of China GB/T 20371 " food industry soybean protein ", the moisture of regulation soybean protein isolate controls≤10%, in National Standard of the People's Republic of China GB 7101 " solid beverage sanitary standard ", regulation protein type solid beverage product moisture should control be less than 5%, namely requires that the moisture of protide raw material need lower than 5%.The albumen moisture that material supplier supplies is substantially about 8%, and in the regulation stored and in transportation, moisture is easily increased beyond national standard, if the content of moisture is higher in protein, the stability of product will decline, and shelf life shortens, easy cooperating microorganisms.So this raw material has to pass through dry process before use.
Chinese patent CN103750504A discloses a kind of quick air drying equipment and the air drying method for pollen pini thereof, the cardinal principle of its drying means is the effect utilizing blower fan, make raw material in circulation canal, form fluidisation state, carry out drying by the method for high-speed circulating flowing.The dry dynamics of the method is low, and remaining moisture is high.
Chinese patent CN100544611C discloses a kind of drying means of instant high protein bean powder, the cardinal principle of this drying means utilizes spray drying tower to carry out atomization drying, the solution of protein is sent into spray drying tower, air inlet temperature of stabilizer is 135-210 DEG C, tower exit temperature is 95-120 DEG C, and the continuous drying time that the soya-bean milk particle of atomization is in 95-120 DEG C of temperature section is greater than 1min.The temperatures as high of this drying means 200 DEG C, makes protein denaturation, nutritive validity decline, and consume energy high, production cost is high.
Chinese patent CN203123085U discloses a kind of microwave vacuum drying sterilizer, and its main operational principle adopts cylindrical can cylinder, and product slowly moves in hanging basket, and microwave plays the effect of dry sterilization from all angles product irradiation.The defect of this mode of operation is: the raw material in hanging basket can not be stirred in dry sterilization process, and different parts dry sterilization degree is different, causes the phenomenon of protein raw material uneven drying; After processing primary material, need the raw material in hanging basket to be shifted out, efficiency is extremely slow, and this equipment is only suitable for processing raw material in a small amount, is not suitable for producing processing in enormous quantities.
Summary of the invention
In order to overcome the various defects of prior art.The invention provides the protein powder of a kind of dry sterilization device of protein raw material, method and acquisition.
An object of the present invention is to provide a kind of dry sterilization device of protein raw material, it comprises evaporation tank body, motor, vavuum pump, microwave generator, charging aperture, agitator and discharging opening, the top of evaporation tank body is provided with motor, agitator is connected with below motor, agitator comprises shaft, paddle and stirring frame, motor is connected with shaft, shaft arranges the stirring frame of equally distributed paddle and a rectangle, agitator is positioned at the inside of evaporation tank body, the upside of evaporator external body is provided with vavuum pump, the opposite of vacuum tube arranges charging aperture, in the middle part of evaporation tank body, side is provided with microwave generator, microwave generator and charging aperture are positioned at the same side of evaporating tank body, the bottom of evaporation tank body is provided with discharging opening.
The agitating mode of described agitator is that 3 D stereo stirs, and paddle and stirring frame stir simultaneously.
This dry sterilization device finally obtains the water content of dry rear protein raw material below 2%, dry dynamics is high, cost is low, the drying equipment efficiency that compensate for as electric drying oven with forced convection etc. is conventional is low, rate of drying is slow, the defect of uneven drying, the protein powder based food raw material that obtains of this bactericidal unit simultaneously, show through moisture and microbiological indicator testing result: moisture is 1.4% ~ 2.1%, total plate count is 30 ~ 200cfu/g, coliform is 6 ~ 10MPN/100g, mould is 2 ~ 8cfu/g, yeast is 2 ~ 6cfu/g, pathogenic bacteria (salmonella, Shigella, staphylococcus aureus), all do not detect.The requirement of its microbiological indicator to microbiological indicator in protein involved based food raw material.
Two of object of the present invention is to provide a kind of method of dry sterilization of protein raw material, and its step is as follows:
1) protein raw material is added in evaporation tank body according to claim 1, then will evaporate tank body sealing;
2) vavuum pump is opened, until when evaporation tank body internal vacuum is 0.08 MPa ~ 0.10MPa, close vavuum pump;
3) open agitator in evaporator, stirring frequency is 30 ~ 50r/min;
4) open microwave generator, microwave sterilization frequency is 1500 ~ 3000MHz;
5) baking temperature is set to 55 ~ 75 DEG C, can obtain the protein raw material after dry sterilization after dry sterilization 40 ~ 80min.
Preferably, described sterilizing methods, its step is as follows:
1) lactalbumin moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.09 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 40r/min;
4) open microwave generator, microwave sterilization frequency is 2000MHz;
5), when temperature is set to 60 DEG C, the lactalbumin after dry sterilization can after dry sterilization 60min, be obtained.
Dry sterilization method of the present invention is vacuum microwave drying sterilizing methods, vacuum airtight container is selected to carry out drying, both the pollution of microorganism in process had been avoided, the moisture of protein raw material can be down to again less than 2% this drying means simple to operate, dry sterilization moisture entrapment is low, sterilizing is thorough, efficiency is high, be suitable for industrial applications, is conducive to the large-scale application of food service industry.
Three of object of the present invention is to provide a kind of protein powder, is selected from the one in soybean protein isolate, lactalbumin, collagen by the protein raw material of above-mentioned drying means drying; This protein powder contains the one in protein raw material.
The primary raw material of protein powder one is soybean protein isolate, taurine, lactalbumin, soybean lecithin, lactose.Soybean vegetable protein and the whey animal protein of this protein powder one coordinate proportioning, and nutritious equilibrium, easily absorbs, there is antifatigue simultaneously, promote visual development, alleviate the blurring of image, high biological value protein, content reaches 80%, improves the function of immunity, preventing cold, lifting energy.
The primary raw material of protein powder two is collagen protein powder, vitamin C and peach flavor.This protein powder two has reparation damaged skin, recovers elasticity, prevents and alleviate wrinkle, moisturizing the pore that compacts, Whitening, spot, makes the lasting water of skin moisten gloss, pale delicacy, the function of vigorous and graceful breast and buttocks.
The primary raw material of protein powder three is soybean protein isolate, Fructus lycii P.E, almond powder, soy peptide powder, royal jelly freeze-dried powder, L-arginine, crystal diabetin, xylitol, vegetable fat powder, maltodextrin, cheese powder, lecithin, wheat fragrant powdered flavor, acesulfame potassium, silica.This protein powder three has the function of develop immunitypty.
Use the obtained protein powder of the protein dried feed of drying of the present invention to be beneficial to preservation, the phenomenon of not easily going mouldy, ensure the nutritive value of the protein of protein raw material.
The advantage of invention is: dry sterilization device of the present invention, structure is simple, and can make raw material drying evenly, improve dry mass, shorten drying time, multilayer 3 chip flat leaf runoff stirs and can not cause PD inactivation because rotating speed is excessive simultaneously, and dry dynamics low moisture also can not be caused defective; The present invention adopts microwave to carry out drying, has product drying sizing quality good, does not ftracture, and is easy to control, realize automatically controlling heat time and baking temperature, save time, energy resource consumption is few, and production intensity is little, environment-protecting clean health, pollution-free simultaneously, more can not produce " the advantage of three wastes problem.In addition, under vacuum environment, baking temperature does not need to arrange and too highly can realize rapid draing, avoids the protein degradation problem that high temperature brings; Combine microwave sterilization process simultaneously, avoid the pollution of microorganism in process.The protein powder purity obtained by present device and method is high, nutritious, is beneficial to absorption and the utilization of human body, is conducive to the large-scale application of food service industry.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dry sterilization device of protein raw material of the present invention, wherein: motor 1, charging aperture 2, microwave generator 3, discharging opening 4, agitator 5, shaft 501, paddle 502, stirring frame 503, vavuum pump 6, evaporation tank body 7.
Detailed description of the invention
Specific embodiment is adopted to further illustrate content of the present invention below
Following content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
embodiment 1, present protein raw material dry sterilization device:
With reference to Fig. 1, this detailed description of the invention is by the following technical solutions: it comprises evaporation tank body 7, motor 1, vavuum pump 6, microwave generator 3, charging aperture 2, agitator 5 and discharging opening 4, the top of evaporation 7 is provided with motor 1, agitator 5 is connected with below motor 1, agitator 5 comprises shaft 501, paddle 502 and stirring frame 503, motor 1 is connected with shaft 501, shaft 501 arranges the stirring frame 503 of equally distributed paddle 502 and a rectangle, agitator 5 is positioned at the inside of evaporation tank body 7, the upside of evaporation tank body 7 outside is provided with vavuum pump 6, the opposite of vavuum pump 6 arranges charging aperture 2, in the middle part of evaporation tank body 7, side is provided with microwave generator 3, microwave generator 3 and charging aperture 2 are positioned at the same side of evaporating tank body 7, the bottom of evaporation tank body 7 is provided with discharging opening 4.
embodiment 2, present protein raw material dry sterilization method step as follows:
1) lactalbumin moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.09 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 40r/min;
4) open microwave generator, microwave sterilization frequency is 2000MHz;
5), when temperature is set to 60 DEG C, the lactalbumin after dry sterilization can after dry sterilization 60min, be obtained.
The water content 1.4% of the lactalbumin after dry sterilization.Total plate count is about 40CFU/g.
embodiment 3, present protein raw material dry sterilization method step as follows:
1) collagen moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.08 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 30r/min;
4) open microwave generator, microwave sterilization frequency is 1500MHz;
5), when temperature is set to 55 DEG C, the collagen after dry sterilization can after dry sterilization 40min, be obtained.
The water content 1.7%% of the collagen after dry sterilization.Total plate count is about 100CFU/g.
embodiment 4, present protein raw material dry sterilization method step as follows:
1) soybean protein isolate moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.10 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 50r/min;
4) open microwave generator, microwave sterilization frequency is 3000MHz;
5), when temperature is set to 75 DEG C, the collagen after dry sterilization can after dry sterilization 80min, be obtained.
The water content 1.6% of the collagen after dry sterilization.Total plate count is about 80CFU/g.
embodiment 5, present protein raw material dry sterilization method step as follows:
1) soybean protein isolate moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.05 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 20r/min;
4) open microwave generator, microwave sterilization frequency is 1200MHz;
5), when temperature is set to 80 DEG C, the collagen after dry sterilization can after dry sterilization 60min, be obtained.
The water content 1.8% of the collagen after dry sterilization.Total plate count is about 176CFU/g.
embodiment 6, present protein raw material dry sterilization method step as follows:
1) soybean protein isolate moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.014 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 70r/min;
4) open microwave generator, microwave sterilization frequency is 3600MHz;
5), when temperature is set to 50 DEG C, the collagen after dry sterilization can after dry sterilization 80min, be obtained.
The water content 2.0% of the collagen after dry sterilization.Total plate count is about 203CFU/g.
comparative example one, dry sterilization device of the present invention and electric drying oven with forced convection drying experiment contrast:
The drying condition of electric drying oven with forced convection is consistent with drying condition of the present invention, and dry result is as following table:
Table 1. drying experiment comparing result
| Equipment | Electric drying oven with forced convection device | Dry sterilization device of the present invention |
| Raw material | Soybean protein isolate | Soybean protein isolate |
| Temperature | 60℃ | 60℃ |
| Drying time | 8 h | 8 h |
| Moisture after dry | 6.2% | 1.5% |
| Total plate count after dry | 530 CFU/g | 40 CFU/g |
When in drying device of the present invention, agitator is replaced by anchor agitator, the flat leaf radial agitator of multilayer 2 chip, axial flow stirrer or mixed flow agitator, after dry 8h, moisture is all higher than 3.2%, and after dry, total plate count is all higher than 130 CFU/g.When not arranging agitator, after dry 8h, moisture is higher than 5%, and after dry, total plate count is higher than 360 CFU/g.
Can be drawn by comparative example one, under the condition that baking temperature is consistent with drying time, the drying means of evaporator of the present invention is higher than the dry dynamics of the drying means of electric drying oven with forced convection, uniform drying, water content too high or bacterium colony in local can not be caused to exceed standard, and after dry, moisture is less than 2%; The dried total plate count of electric drying oven with forced convection is 13 times of the drying means of evaporator of the present invention, and moisture is also high, has a strong impact on the quality of raw-food material.So the drying means of evaporator of the present invention is relative to the drying means of electric drying oven with forced convection, and simple to operate, cost is low, and dry dynamics is high, after dry, feed moisture content is low, clump count is few, is more conducive to the large-scale application of food service industry.
comparative example two, protein powder of the present invention and the nutrition of existing protein powder and the mensuration of quality:
Protein powder one of the present invention is all made up of raw materials such as soybean protein isolate, taurine, lactalbumin, soybean lecithin, lactose with Niu Sibao board protein powder.Uv-spectrophotometric is used to test the protein content of protein powder one of the present invention and Niu Sibao board protein powder, it is 25 DEG C ~ 30 DEG C that protein powder one and Niu Sibao board protein powder are placed in temperature, relative humidity is in the environment of 80% ~ 90%, observes the situation of change of two days internal protein powder one and Niu Sibao board protein powder.Result is as following table:
The measurement result of table 2. nutrition and quality
As seen from the above table, the dry mass of protein raw material is the quality directly affecting protein powder, compared with the Niu Sibao board protein powder using protein powder one that the soybean protein isolate of drying of the present invention is raw material and market to sell, the phenomenon that the protein of Niu Sibao board protein powder easily goes mouldy, and protein powder one of the present invention have employed the protein raw material that drying means of the present invention obtains, the phenomenon of not easily going mouldy, is beneficial to preservation, ensures the quality of protein powder.
When in drying device of the present invention, agitator is replaced by propeller mixer, turbine agitator, anchor agitator, multilayer 2 chip flat leaf radial agitator, the flat leaf radial agitator of multilayer 4 chip, axial flow stirrer or mixed flow agitator, gained protein powder has and slightly goes mouldy.When not arranging agitator, uneven drying, gained protein powder has and goes mouldy, and has peculiar smell.
Claims (10)
1. the dry sterilization device of a protein raw material, it is characterized in that, comprise evaporation tank body, motor, vavuum pump, microwave generator, charging aperture, agitator and discharging opening, the top of evaporation tank body is provided with motor, agitator is connected with below motor, agitator comprises shaft, paddle and stirring frame, motor is connected with shaft, shaft arranges the stirring frame of equally distributed paddle and a rectangle, agitator is positioned at the inside of evaporation tank body, the upside of evaporator external body is provided with vavuum pump, the opposite of vacuum tube arranges charging aperture, in the middle part of evaporation tank body, side is provided with microwave generator, the bottom of evaporation tank body is provided with discharging opening.
2. the dry sterilization device of protein raw material as claimed in claim 1, is characterized in that, the agitating mode of described agitator is that 3 D stereo stirs.
3. the dry sterilization device of protein raw material as claimed in claim 1, it is characterized in that, described microwave generator and charging aperture are positioned at the same side of evaporating tank body.
4. a method for the dry sterilization of protein raw material, is characterized in that, comprises following steps:
1) protein raw material is added in evaporation tank body according to claim 1, then will evaporate tank body sealing;
2) vavuum pump is opened, until when evaporation tank body internal vacuum is 0.08 MPa ~ 0.10MPa, close vavuum pump;
3) open agitator in evaporator, stirring frequency is 30 ~ 50r/min;
4) open microwave generator, microwave sterilization frequency is 1500 ~ 3000MHz;
5) baking temperature is set to 55 ~ 75 DEG C, can obtain the protein raw material after dry sterilization after dry sterilization 40 ~ 80min.
5. the dry sterilization method of protein raw material as claimed in claim 4, is characterized in that, comprise following steps:
1) lactalbumin moisture being after measured about 8% is added into embodiment 1 and evaporates in tank body, is then sealed by tank body;
2) open vavuum pump, until when tank interior air pressure reaches 0.09 MPa, close vavuum pump;
3) open agitating device in evaporator, stirring frequency is 40r/min;
4) open microwave generator, microwave sterilization frequency is 2000MHz;
5), when temperature is set to 60 DEG C, the lactalbumin after dry sterilization can after dry sterilization 60min, be obtained.
6. the dry sterilization protein raw material that method obtains of protein raw material as claimed in claim 4, it is characterized in that, described protein raw material is the one in soybean protein isolate, lactalbumin, collagen.
7. a protein powder, is characterized in that, described protein powder contains protein raw material according to claim 5.
8. the protein powder containing soybean protein isolate as claimed in claim 7, is characterized in that, described protein powder is also containing taurine, lactalbumin, soybean lecithin, lactose.
9. the protein powder containing collagen protein powder as claimed in claim 7, is characterized in that, described protein powder is also containing vitamin C and peach flavor.
10. the protein powder containing soybean protein isolate as claimed in claim 7, it is characterized in that, described protein powder is also containing Fructus lycii P.E, almond powder, soy peptide powder, royal jelly freeze-dried powder, L-arginine, crystal diabetin, xylitol, vegetable fat powder, maltodextrin, cheese powder, lecithin, wheat fragrant powdered flavor, acesulfame potassium, silica.
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Cited By (5)
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| CN110338263A (en) * | 2019-08-13 | 2019-10-18 | 山西宏田嘉利农业科技有限公司 | A kind of method of fructus cannabis powder low temperature sterilization |
| US11718594B2 (en) | 2016-09-21 | 2023-08-08 | Celanese International Corporation | Acesulfame potassium compositions and processes for producing same |
| US11724994B2 (en) | 2016-09-21 | 2023-08-15 | Celanese International Corporation | Acesulfame potassium compositions and processes for producing same |
| US11724993B2 (en) | 2016-09-21 | 2023-08-15 | Celanese International Corporation | Acesulfame potassium compositions and processes for producing same |
| US11731948B2 (en) | 2016-09-21 | 2023-08-22 | Celanese International Corporation | Acesulfame potassium compositions and processes for producing same |
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