CN100459869C - Method for producing lactic acid drink containing flesh grains - Google Patents
Method for producing lactic acid drink containing flesh grains Download PDFInfo
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Abstract
The invention discloses a method for producing acidophilous milk drink with pulp particles, comprising that 1, preparing milk stuff, 2, preparing pulp stuff, 3, preparing the acidophilous milk drink with pulp particles. The invention can realize the production of acidophilous milk drink with pulp particles, with high efficiency, high quality and wide application.
Description
Technical field
The present invention relates to the method that a kind of production contains the sour milk beverage of pulp particle.
Background technology
Dairy products are the important parts of food industry, are one of the fastest food service industrys of China's growth rate.In the trend that improves gradually along with consumer health's consciousness, the development of dairy products has entered Rapid development stage thereupon.Huge variation has taken place to nutritional requirement in the taste of product, packing and consumer.
Sour milk beverage is to be raw material with raw milk or sour milk, white granulated sugar or syrup, lactic acid or citric acid or malic acid, stabilizing agent, essence, pigment etc., sometimes the needs according to product add some vitamins and mineral matter, a kind of milk beverage that process allotment, homogeneous, sterilization are made.Product category is various, the common milk beverage that fruit juice type milk beverage, forced for vitamins mineral matter are arranged, children's milk beverage, low sugar milk beverage etc.; Packing PE bottle, PET bottle, Tetra Pak, Kang Meibao and the pop cans etc. of adopting more, product is drunk conveniently, and mouthfeel is good, and product is subjected to consumer's warm welcome.In recent years, the sour milk beverage development is very fast, and average speed of growth is the important component part of beverage market more than 20%.
Though product category is various, development is rapid, and the production technology of product is basic identical, does not have obviously difference in essence, can not be fit to the production demand of specialities.The milk beverage production technology mainly comprises the steps: at present
1, the check of former milk:
Be primarily aimed at organoleptic indicator, acidity, fat, protein, real milk solids, mingle, several indexs such as alcohol experiment detect, and meet national standard.
2. prepare burden:
After a, thickener or emulsifying agent, white granulated sugar or sweetener or syrup fully dissolve, squeeze in the material-compound tank, with the abundant mixing of milk (or cultured milk).
B, acidity adjustment: joining in the mixture of cow's milk and stabilizing agent after acidity regulator fully dissolves is among a, stirs fast, fully mixes with cow's milk (or cultured milk).
C, interpolation nutrient: as adding nutrient or fruit juice or other auxiliary material, nutrient or auxiliary material are fully dissolved among the back adding a, fully mix with product.
3. homogeneous: pressure is 15-25MPa, and temperature is 50--70 ℃.
4. temporary: or add flavor substance.
5. sterilization: adopt pasteurize or UHT disinfection system, mainly may further comprise the steps: preheating → homogeneous → sterilization → cooling
A, disinfection equipment mainly adopt heat-exchangers of the plate type or bushing type sterilization.
B, homogeneous: generally adopt 18--25MPa, temperature is 60--70 ℃; Mainly be to smash fat, and carry out emulsification and dispersion.
6. can: mainly adopt sterile filling and two-stage sterilization can.
7. packing, check are dispatched from the factory after qualified.
The main feature of above product technology is: with the disposable whole mixing of all materials, common keeping in heated common cooling, can jointly to product jointly before sterilization.This technology can not be taked the different disposal method according to the characteristic of constituents different in the product, can not the following problem of good treatment:
One, when containing the composition that is difficult for sterilization in the product such as granular pattern pulp, if be index, just can not kill the microorganism in the pulp particle with the microorganism of killing in the cow's milk, product safety can not get assurance; If with the microorganism of killing in the pulp particle is index, cow's milk is heated excessively, reduce product quality.So just limit the range of choice of milk product supplementary material, can not produce the milk product that contains these mouthfeels uniquenesses but be difficult to the additive of sterilization.
Two, the kinetic pump that adopts in the above technology, as the driving force as feed liquid such as centrifugal pump, feed liquid has obtained bigger energy during through the impeller of pump on the one hand, so that the flowing of product; On the other hand, feed liquid also can be subjected to bigger shearing force, and along with the increase of pump, the increase of pressure, the shearing force that is subjected to is also along with increase.The supplementary material such as pulp, the particle etc. that do not tolerate shearing just can not adopt this production technology.
Three, in this technology be adopt that all materials all mix, keep in, the integral type of common sterilization, cooling and can operates, this is not suitable for containing the cow's milk product of pulp particle type, because the proportion of pulp particle is more great than the ratio of cow's milk, in the process of producing, can there be the uneven phenomenon of granule content in pulp particle sinking, the finished product, can't realizes large-scale production.
Four, the distance of homogenizer spool and valve base chamber only has 0.1mm, and diameter is that several millimeters pulp particle raw materials can't pass through at all; If remove homogeneous technology, can not be broken, emulsification divides the fat in the lively stock, makes product be very easy to exist the problem of fat floating.
Summary of the invention
The purpose of this invention is to provide the method that a kind of production contains the sour milk beverage of pulp particle.
Production provided by the present invention contains the method for the sour milk beverage of pulp particle, comprises the steps:
1) preparation milk batching
A) stabilizing agent, sugar are separated with water-soluble, squeezed in the material-compound tank, with the abundant mixing of milk;
B) with mixed material homogeneous, pasteurize;
C) in material, add acidity regulator;
D) high-temperature sterilization, aseptic storage obtains the milk batching;
2) preparation pulp batching
E) after pulp particle stirs, sterilize, stir again, obtain the pulp batching;
3) produce the sour milk beverage that contains pulp particle
F) milk batching and pulp batching are transported to blending tank through triple valve, static mixer, aseptic mixing stirs;
G) milk and pulp mix after aseptic conveying, and sterile filling obtains described sour milk beverage.
In production process of the present invention, various components and content can be with reference to the proportionings of existing sour milk beverage.Preferably, the described stabilizing agent of step a) comprises emulsifying agent and thickener, and the ratio of emulsifying agent and thickener is 0.1-1.0%; Emulsifying agent is selected from one or more the combination of single hard fatty acid ester, sucrose fatty ester, polyglycerol ester; Thickener is selected from one or more the combination in sodium carboxymethylcellulose, gellan gum, xanthans, microcrystalline cellulose and the pectin.The pressure of step b) homogeneous is 15-25MPa, and temperature is 50--70 ℃; The temperature of pasteurize is 80-95 ℃, and the time is 10-15S.The step c) acidity regulator is selected from lactic acid, citric acid, malic acid, phosphoric acid, tartaric one or more combination; Acidity regulator is to realize by online addition manner.
The temperature of step d) high-temperature sterilization is 110-130 ℃, and the time is 8-3S; Aseptic storage realizes that by filtrated air protection the pressure of aseptic jar of interior filtrated air is 0.6-1.0MPa.
Step e) fruit grain can be selected from aloe particle, orange fruit grain, pineapple fruit grain, grape fruit, peach fruit grain, pawpaw fruit grain, mango fruit grain, strawberry, and really one or more of grain, the operatic circle grain, Amorphophalus rivieri particle, coconut palm fruit granule, cucumber particle, celery particle, radish kind particle, tomato particle are compound; Fruit grain-by-grain seed selection diameter is graininess fruit grain or the pulp class fruit grain of 1-20mm, and perhaps length is 1-20mm, the fibrous fruit grain of width 1-10mm.The stirring of step e) is carried out in the pulp surge tank, generally stirs 10-20 minutes; Pulp after the sterilization is stored in the fruit grain aseptic tank, can take at any time, stirs but also will carry out intermittence; The paddle of described pulp surge tank and fruit grain aseptic tank all is oar formulas, and profile is similar with the jar end, blade edge 3-15cm at the bottom of the jar, and apart from tank skin 3-15cm, rotating speed is 40-80r/min; Single bushing type or shell and tube sterilizer are adopted in the sterilization of fruit grain, and sterilising temp is 100--120 ℃, and sterilization time is 25-35s, and the diameter of material sterilization pipeline is 10--35mm.Sterilizing installation can be selected the product of GEA company, Tetrapack company or Rui Pai company.
The flow-rate ratio of step f) milk batching and pulp batching is 100:3-100:15; The unlatching of pump is controlled by the blending tank two position, and low liquid level is opened, and high liquid level is stopped.What step f) was carried employing is displacement pump, and described displacement pump is selected from screw pump, gear pump, dextrorotation pump or impeller pump; Milk batching and pulp are prepared burden through triple valve, static mixer to blending tank; The static mixer diameter is 25--60mm; Paddle is the anchor type in the blending tank, the band baffle plate, and rotating speed is 30-100r/min; Gnotobasis realizes that by filtrated air protection the pressure of filtrated air is 0.6-1.0MPa.
The flow velocity of step g) material in transfer pipeline is 0.8-2.0m/s; The can head is a circular hole, and the aperture of pouring head is 1.3-3.0 times of particle diameter, and product capacity is 0.1L-1.5L.Bottle placer can be selected the product of SIG Kang Mei company, Tetrapack company or this company of crown for use.
Production method of the present invention comprises that mainly milk is prepared burden, the fruit grain is prepared burden and aseptic mixing three big steps, and milk is prepared burden and separating that the fruit grain is prepared burden, and has solved the really halfway problem of grain sterilization; Protect the fruit type of fruit grain, greatly reduced the damaged degree of fruit grain; Can take different processing means according to the characteristic of milk or fruit grain, make it reach aseptic; The aseptic uneven problem of fruit grain in the product that solved of mixing of fruit grain and milk has been stopped the phenomenon of a fruit sedimentation blocking pipeline in the production process, has realized large-scale production; Broken through the restriction of original production technology simultaneously; The sterile filling that product adopts has farthest kept the nutritional labeling of product, prolongs the shelf-life of product, has made things convenient for market circulation.
The inventive method has realized containing the production of pulp particle sour milk beverage, has solved the problem that traditional processing technology exists.Make production more flexible, production efficiency is higher, and product quality is better, has expanded the range of choice of products material greatly, has enriched product category, has vast market prospect.
Description of drawings
Fig. 1 is the technological process of production figure of the inventive method.
The specific embodiment
As shown in Figure 1, production method provided by the present invention mainly comprises milk batching step, pulp batching step and blend step three parts, and details are as follows:
One, milk batching step
1, raw milk check:
Be primarily aimed at organoleptic indicator, acidity, fat, protein, real milk solids, mingle, several indexs such as alcohol experiment detect, and meet relevant national standards.
2. prepare burden:
After a, stabilizing agent and white granulated sugar or sweetener fully dissolve, squeeze in the material-compound tank, with the abundant mixing of milk (or cultured milk).
The dissolving of b, acidity adjustment or syrup: be temporarily stored in after tart flavour conditioning agent or syrup fully dissolved in the acid jar, concentration is 1.5-5.0%, acid to be added.
3. pasteurize: comprise four sections of preheatings, homogeneous, sterilization, cooling.Be preheated to 50--70 ℃, the homogeneous gross pressure is 15-25MPa, and the one-level homogenization pressure is 10--17MPa, and double-stage homogenization pressure is 5--8MPa; Pasteurize, is cooled off≤8 ℃ by 80--95 ℃/10--15S;
4. onlinely add acid: by online mode acid solution is added in the cow's milk after the pasteurize uniformly, the mode by on-line mixing mixes, and guarantees that acid solution all adds in the cow's milk.
5. temporary: pasteurize and add acid after mixed material be temporarily stored in temporary jar, add flavor substance (as flavorant etc.), subject to sterilization.
6. sterilization: adopt high-temperature short-time sterilization, 110--135 ℃, 8-3S;
7. the aseptic storage of cow's milk: aseptic jar gnotobasis is cleaned by CIP and filtrated air protection is realized, the pressure of aseptic jar of interior filtrated air is 0.6-1.0MPa.
Two, pulp batching step
1. fruit grain raw material is temporary in fruit grain surge tank.The paddle of pulp surge tank is the oar formula, and profile is similar to jar end, blade edge 3-15cm at the bottom of the jar, and apart from tank skin 3-15cm, rotating speed is 40-80r/min.
2. fruit grain sterilization: fruit grain sterilizer adopts single bushing type or shell and tube sterilizer, and 100--120 ℃, 25-45S ,≤25 ℃ of sterilization back coolings.
3. aseptic jar temporary: aseptic jar gnotobasis is cleaned by CIP and filtrated air protection is realized, the pressure of filtrated air is 0.6-1.0MPa in the aseptic jar.The aseptic temporary jar paddle of fruit grain is the blade of anchor formula, and profile is similar with the jar end, blade edge 3--15cm at the bottom of the jar, and apart from tank skin 3-15cm, rotating speed is 40-80r/min.
Three, a milk batching and a fruit blend step of preparing burden
1. milk batching and fruit grain batching use screw pump, gear pump or impeller pump isometric(al) pump to carry respectively, and the adding proportion of the two realizes by the flow of adjusting two pumps.
2. after milk batching and fruit grain batching are carried by aseptic pump, mix, mix through the static mixer on the pipeline after the mixing through triple valve.
3. blending tank mixes: for further mixing milk batching and really grain batching, milk batching and fruit grain batching enter into blending tank through behind the static mixer, and blending tank has agitator, make milk batching and fruit grain batch mixes even, feed liquid outes while advancing, and keeps continuing to produce.Paddle is the anchor type in the blending tank, the band baffle plate, and rotating speed is 30-100r/min, volume is 100-250L; The gnotobasis of jar is cleaned by CIP and filtrated air protection realizes that the pressure of filtrated air is 0.6-1.0MPa.
4. pipeline conveying: after milk batching and fruit grain batch mixes are even, be transported to bottle placer by the road, the flow velocity in transfer pipeline is 0.8-2.0m/s.
5. sterile filling: product capacity is 0.1L-1.5L, obtains product of the present invention.
Below with specific embodiment detailed process of the present invention is described.
Embodiment 1, be rich in the blending type sour milk beverage of fruit grain
Prescription (in 1 ton):
350.0 kilograms of white granulated sugars of milk: 60.0 kilograms of acesulfame-Ks: 0.2 kilogram
Sodium carboxymethylcellulose: 3.6 kilograms of citric acids: 2.4 kilograms of lactic acid: 1.8 kilograms
Yellow peach fruit grain: 60.0 kilograms of peach essence: 0.4 kg of pure water purification: 521.6 kilograms
The standard of raw material:
Yellow peach particle: size is 3 * 3 * 3mm, pH:3.8, pol: 30BX, fruit grain content: 61.0%;
Other supplementary material meets relevant national standard.
The process chart of production process as shown in Figure 1, detailed process is as follows:
One, milk batching:
The check of 1 former milk: be primarily aimed at organoleptic indicator, acidity, fat, protein, real milk solids, mingle, several indexs such as alcohol experiment detect, and meet relevant national standards.
2. prepare burden:
A. the dissolving of thickener: sodium carboxymethylcellulose: white granulated sugar=1:6 mixes; Be dissolved in 350 kilograms 75 ℃ the pure water, after the dissolving fully, squeeze into after the cooling in the material-compound tank, with the abundant mixing of milk.
B. the interpolation of acid solution: citric acid and lactic acid dissolution are in 50 times pure water, and concentration is 2%, after the dissolving, are stored in the acid jar fully.
3. pasteurize: be preheated to 65 ℃, the homogeneous gross pressure is 20MPa, and first class pressure is 15MPa, secondary pressure 5MPa; Sterilization temperature is 85 ℃/15s, is cooled to 7 ℃.
4. onlinely add acid:
5. temporary: as to be temporary in the surge tank, to add essence, be settled to 940.0 kilograms.
6. high-temperature sterilization: 121 ℃/4s.
7. aseptic tank stores: filtrated air pressure is 0.8Mpa.
Two, fruit grain batching
1. interpolation pulp: the fruit grain slowly adds in the surge tank, opens and stirs, and rotating speed is 50r/min, makes pulp even.
2. fruit grain sterilization: sterilising temp is 110 ℃/35S.
3. the aseptic tank stores of pulp: rotating speed 50r/min intermittently stirs, and is as the criterion so that pulp is not stratified.
Three, the aseptic mixing of milk and fruit grain
1. milk batching flow: fruit grain batching flow=100:6.4
2. milk batching and fruit grain batching enter into static mixer by triple valve.
3. milk batching and fruit grain batching are being mixed in-tank mixing, and speed of agitator is 45r/min, and filtrated air pressure is 0.8Mpa.
4. adopt Kang Mei company bottle placer sterile filling after milk batching and the fruit grain batch mixes, the aperture of pouring head is 6mm, is 2 times of particle diameter; Obtain milk beverage after the can.
The detection of product:
1. protein: 1.06% fat: 1.1% soluble solid: 10.8%
2. fruit grain content: 3.5-4.0%, flesh-content is stable.
3. the percentage of damage of fruit grain is 15.0% in the product; As a comparison, the product that conventional production methods is produced, fruit grain percentage of damage is 80.0%; The protection of fruit type is complete;
4. product is aseptic, and the product mouthfeel is significantly better than mill run.
Embodiment 2, be rich in the sour milk beverage of pulp of Cortex cocois radicis
Prescription (in 1 ton):
Cultured milk: 400.0 kilograms of white granulated sugars: 40.0 kilograms of HFCSs (70.0%): 60.0 kilograms
Coconut palm fruit: 85.0 kilograms of pectin: 3.6 kilograms of citric acids: 1.5 kilograms of sour milk essence: 0.3 kilogram
Pure water: 409.6 kilograms
Raw material standard:
Coconut palm fruit fruit grain size is 3 * 4 * 4mm, PH:4.5, pol: 15BX, fruit grain content: 70.0%;
Other supplementary material meets relevant national standard.
Preparation process:
One, milk batching:
1. preparation cultured milk: use the gloomy YM-381 bacterial classification of the Chinese to ferment, sour milk acidity (titratable acidity) is cooled to rapidly below 10 ℃ after reaching 80 ° of T, and sour milk acidity is controlled in the 80--90 ° of T scope.
2. prepare burden:
A. the yoghurt for preparing is taken by weighing in the pill tank by formula ratio.
B. the dissolving of thickener: pectin: white granulated sugar=1:5 mixes; Be dissolved in 300 kilograms 73 ℃ the pure water, after the dissolving fully, squeeze into after the cooling in the material-compound tank, with the abundant mixing of yoghurt.
C. the dissolving of acid solution: citric acid is dissolved in 40 times the pure water, and concentration is 2.5%, fully after the dissolving, is stored in the acid jar.
3. pasteurize: be preheated to 60 ℃, the homogeneous gross pressure is 22MPa, and first class pressure is 16MPa, secondary pressure 6MPa; Sterilization temperature is 90 ℃/15s, is cooled to 8 ℃.
4. onlinely add acid:
5. temporary: as to be temporary in the surge tank, to add essence, be settled to 915.0 kilograms.
6. high-temperature sterilization: 115 ℃/8S.
7. aseptic tank stores: filtrated air pressure is 1.0Mpa.
Two, fruit grain batching
1. interpolation pulp: the fruit grain slowly adds in the surge tank, opens and stirs, and rotating speed is 60r/min, makes pulp even.
2. fruit grain sterilization: sterilising temp is 105 ℃/30S.
5. the aseptic tank stores of pulp: open intermittently and stir, rotating speed is 45r/min, is as the criterion so that pulp is not stratified.
Three, the aseptic mixing of milk and fruit grain
1. milk batching flow: fruit grain batching flow=100:9.3
2. milk batching and fruit grain batching enter into static mixer by triple valve.
3. milk batching and fruit grain batching are being mixed in-tank mixing, and speed of agitator is 55r/min, and filtrated air pressure is 1.0Mpa.
4. adopt the Kang Mei sterile filling after milk batching and the fruit grain batch mixes, the aperture of pouring head is 7mm, is 1.75 times of particle diameter; Obtain milk beverage after the can.
The detection of product:
1. protein: 1.15% fat: 1.4% soluble solid: 13.0%
2. flesh-content: 5.8--6.2%, flesh-content is stable.
3. fruit grain percentage of damage is 5.0%, is starkly lower than the percentage of damage of common process 75%;
4. the aseptic mixing filling of milk fruit grain, product is aseptic.
Embodiment 3 contains the sour milk beverage of coconut palm fruit and strawberry composite fruit grain
Prescription (in 1 ton):
Milk: 450.0 kilograms of white granulated sugars: 45.0 kilograms of knobs are sweet: 0.0075 kilogram
Coconut palm fruit granule: 65.0 kilograms of strawberry particles: 3.0 kilograms of 25.0 kilograms of pectin
0.5 kilogram of lactic acid of 1.0 kilograms of single hard fatty acid esters of microcrystalline cellulose: 2.0 kilograms
Citric acid: 2.5 kilograms of sour milk essence: 0.5 kg of pure water purification: 402.5 kilograms.
Raw material standard: supplementary material meets relevant national standard.
Preparation process:
One, milk batching:
The check of 1 former milk: be primarily aimed at organoleptic indicator, acidity, fat, protein, real milk solids, mingle, several indexs such as alcohol experiment detect, and meet relevant national standards.
2. prepare burden:
A. the dissolving of stabilizing agent: mixed stabilizer: white granulated sugar=1:4 mixes; Be dissolved in 400 kilograms 80 ℃ the pure water, after the dissolving fully, squeeze into after the cooling in the material-compound tank, with the abundant mixing of milk.
B. the interpolation of acid solution: citric acid and lactic acid dissolution are in 25 times pure water, and concentration is 4%, after the dissolving, are stored in the acid jar fully.
3. pasteurize: be preheated to 70 ℃, the homogeneous gross pressure is 24MPa, and first class pressure is 16MPa, secondary pressure 8MPa; Sterilization temperature is 95 ℃/10S, is cooled to 5 ℃.
4. onlinely add acid
5. temporary: as to be temporary in the surge tank, to add essence, be settled to 910.0 kilograms.
6. high-temperature sterilization: 130 ℃/3S.
7. aseptic tank stores: filtrated air pressure is 0.7Mpa.
Two, fruit grain batching
1. interpolation pulp: the fruit grain slowly adds in the surge tank, opens and stirs, and rotating speed is 75r/min, makes pulp even.
2. fruit grain sterilization: sterilising temp is 120 ℃/25S.
3. the aseptic tank stores of pulp: open intermittently and stir, rotating speed is 70r/min, is as the criterion so that pulp is not stratified.
Three, the aseptic mixing of milk and fruit grain
1. milk batching flow: fruit grain batching flow=100:9.9
2. milk batching and fruit grain batching enter into static mixer by triple valve.
3. milk batching and fruit grain batching are being mixed in-tank mixing: speed of agitator is 85r/min, and filtrated air pressure is 0.7Mpa.
4. adopt the Kang Mei sterile filling after milk batching and the fruit grain batch mixes, obtain milk beverage after the can.
The detection of product:
1. protein: 1.4% fat: 1.5% soluble solid: 12.0%
2. fruit grain content: 5.5-6.5%, fruit grain stable content.
3. production process is smooth, and there is not plugging, sticks with paste the pipe phenomenon, the products obtained therefrom even particle distribution, mouthfeel is along refreshing.
The sensory test of embodiment 4, product
Product with embodiment 1-3 is a specimen, carries out taste tests:
Test number: 300 people;
Test mode: adopt the mode of tasting that several indexs such as local flavor, color and luster, mouthfeel, chewiness, sugar-acid ratio and nutritive value approval of product are estimated, adopt the mode of blank marking to carry out, wherein the full marks of local flavor and color and luster are 10 minutes, the full marks of other index are 20 minutes, mark is high more, and effect is good more.Carry out statistical analysis to tasting the result, as table 1:
Table 1 product is tasted MSDS as a result
Experiment conclusion: above data shows, though the granular pattern milk-contained drink of being produced with the inventive method be in local flavor, mouthfeel or tangible improvement all arranged on nutritional labeling, be subjected to liking of consumer.
Claims (3)
1. a production contains the method for the sour milk beverage of pulp particle, comprises the steps:
1) preparation milk batching
A) stabilizing agent, sugar are separated with water-soluble, squeezed in the material-compound tank, with the abundant mixing of milk;
B) with mixed material homogeneous, pasteurize;
C) in material, add acidity regulator;
D) high-temperature sterilization, aseptic storage obtains the milk batching;
2) preparation pulp batching
E) after pulp particle stirs, sterilize, stir again, obtain the pulp batching;
3) produce the sour milk beverage that contains pulp particle
F) milk batching and pulp batching are transported to blending tank through triple valve and static mixer, aseptic mixing stirs;
G) feed liquid that mixes is through aseptic conveying, and sterile filling obtains described sour milk beverage;
Wherein:
The pressure of step b) homogeneous is 15-25MPa, and temperature is 50--70 ℃; The temperature of pasteurize is 80-95 ℃, and the time is 10-15S;
The temperature of step d) high-temperature sterilization is 110-130 ℃, and the time is 8-3S; Aseptic storage realizes that by filtrated air protection the pressure of aseptic jar of interior filtrated air is 0.6-1.0MPa;
The fruit grain-by-grain seed selection of step e) is from aloe particle, orange fruit grain, pineapple fruit grain, grape fruit, peach fruit grain, pawpaw fruit grain, mango fruit grain, strawberry one or more in grain, the operatic circle Li, Amorphophalus rivieri particle, coconut palm fruit granule, cucumber particle, celery particle, radish kind particle and the tomato particle really; Fruit grain-by-grain seed selection diameter is graininess fruit grain or the pulp class fruit grain of 1-20mm, and perhaps length is 1-20mm, the fibrous fruit grain of width 1-10mm; The stirring of step e) is carried out in the pulp surge tank; Pulp after the sterilization is stored in the fruit grain aseptic tank; The paddle of described pulp surge tank and fruit grain aseptic tank all is oar formulas, and profile is similar with the jar end, blade edge 3-15cm at the bottom of the jar, and apart from tank skin 3-15cm, rotating speed is 40-80r/min; Single bushing type or shell and tube sterilizer are adopted in the sterilization of fruit grain, and sterilising temp is 100-120 ℃, and sterilization time is 25-35s, and the diameter of material sterilization pipeline is 10-35mm;
The flow-rate ratio of step f) milk batching and pulp batching is 100: 3-100: 10, and the ratio of milk and pulp is to realize by the flow of regulating two pumps; The unlatching of pump is controlled by the blending tank two position, and low liquid level is opened, and high liquid level is stopped; What step f) was carried employing is displacement pump, and described displacement pump is selected from screw pump, gear pump, dextrorotation pump or impeller pump; Milk and pulp enter in the blending tank through triple valve, static mixer; The static mixer diameter is 25-60mm; Paddle is the anchor type in the blending tank, the band baffle plate, and rotating speed is 30-100r/min, volume is 100-250L; Aseptic mixing realizes that by filtrated air protection the pressure of filtrated air is 0.6-1.0Mpa;
It is 0.8-2.0m/s that step g) mixes the flow velocity of back material in transfer pipeline; The can head is a circular hole, and the aperture of pouring head is 1.3-3.0 a times of particle diameter; Product capacity is 0.1-1.5L.
2. method according to claim 1 is characterized in that: the described stabilizing agent of step a) is made up of emulsifying agent and thickener, and the ratio of emulsifying agent and thickener is 0.1-1.0%; Emulsifying agent is selected from one or more the combination of single hard fatty acid ester, sucrose fatty ester, polyglycerol ester; Thickener is selected from one or more the combination in sodium carboxymethylcellulose, gellan gum, xanthans, microcrystalline cellulose and the pectin.
3. method according to claim 1 is characterized in that: the step c) acidity regulator is selected from lactic acid, citric acid, malic acid, phosphoric acid, tartaric one or more combination; Consumption is 0.3-0.6%; Acidity regulator is to realize by online addition manner.
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