CN208454856U - A kind of equipment preparing steviol glycoside - Google Patents
A kind of equipment preparing steviol glycoside Download PDFInfo
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- CN208454856U CN208454856U CN201821035811.5U CN201821035811U CN208454856U CN 208454856 U CN208454856 U CN 208454856U CN 201821035811 U CN201821035811 U CN 201821035811U CN 208454856 U CN208454856 U CN 208454856U
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Abstract
The utility model discloses a kind of equipment for preparing steviol glycoside, and microfluidizer is introduced in extraction system and carries out dynamic super-voltage micro jet extraction, realize the rapidly and efficiently extraction to steviol glycoside and effective inhibition to microorganism, greatly save water content consumption；In separation and concentrate drying system, plate and frame filter press, resin adsorption device, membrane separation device, freezing concentrating device and spray-drying installation are used in combination, the multistage physical separation of progress, good separating effect, organic solvent usage amount is extremely few.Steviol glycoside is prepared using the equipment of the utility model, water and energy consumption are small, and waste liquid is few, and recovery rate and extraction efficiency are high, and separative efficiency is high, superior product quality.
Description
Technical field
The utility model belongs to the apparatus field that isolating active component is extracted from solid matter, and in particular to a kind of to prepare
The equipment of steviol glycoside.
Background technique
Stevioside (Total steviosides), also known as steviol glycoside, are commonly called as stevioside, are from catananche
The food additives of pure natural, the high sugariness of one kind, low heat value extracted in the blade of STEVIA REBAUDIANA.Steviol glycoside mainly contains eight kinds not
Same sweet ingredient: Stevioside (Stevioside)；Rebaudioside (Rebaudioside) A, B, C, D, E and Dole can glucosides
(Dulcoside)A,B.Wherein Stevioside accounts for about the 66% of general glycoside amount, and content rebaudioside-A accounts for about the 22% of general glycoside amount, rebaudioside C
Account for about the 9% of general glycoside amount, other component contents are atomic.Steviol glycoside is the third class sugar source after sucrose, beet sugar, sweet tea
Degree is 200~350 times of sucrose, and sweet taste is similar to multitudinous sugar, but the time that residual taste retains in mouth is longer than multitudinous sugar, and its heat
Amount is only the 1/300 of sucrose.The sterling of steviol glycoside is white powdery solids, soluble easily in water, methanol, ethyl alcohol equal solvent, no
It is dissolved in benzene, ether, chloroform equal solvent.Steviol glycoside acid and alkali-resistance, thermal stability be good, without Fermented, can grow in the solution of pH3~9
Phase saves, and does not also decompose in the environment of up to 200 DEG C, it is nearly all to can be widely used in food, beverage, wine brewing, medicine etc.
Sugared field in.
Steviol glycoside be from the leaf of STEVIA REBAUDIANA extract made from.Stevia leaves are mainly by moisture and dry matter group
At.Dry matter main component is stevioside, accounts for about the 10% of dry matter.Mainly there are protein, fat, fiber in non-saccharide part
Element, ash content and nitrogen-free extracts etc..1986, herding institute of the Chinese Academy of Agricultural Sciences was to STEVIA REBAUDIANA cured leaf and its waste residue analytical table
It is bright, moisture content 10.31%, crude protein 12.6%, crude fat 3.17%, coarse ash 7.51%, nitrogen-free extracts in cured leaf
54.4%, contain 0.0022 mg/kg of selenium, 1.35 mgs/kg of VB1,8.69 mgs/kg of VB2,50 milligrams of VC/public affairs
Jin.
Since steviol glycoside is soluble easily in water and alcohols, from Stevia leaves extract steviol glycoside be typically chosen water or
Ethyl alcohol is as solvent.In view of economic and safety etc., water extraction is all used under normal circumstances.It is taken in the prior art
Water extraction is all that juice is soaked out from leaf by carrying out immersion treatment to sweet taste chrysanthemum leaf, carries out coarse-fine extraction to juice
Technology, the steviol glycoside needed.The soak extraction process is always to continue to use traditional extractor equipment.By extracting
Long-time in tank is impregnated, and is had largely containing the juice of steviol glycoside, thus in the leaf slag ejected in extractor
Great loss is caused, waste is caused, reduces economic benefit.Although to pot type extraction process also have preferably go out it is so-called
Three-level counter-current extraction process or ultrasonic wave etc. are strengthened, but are not jump out long period, poor efficiency, big solid-to-liquid ratio, big waste water after all
The traditional handicraft scope of amount pollution environment.For example, the extraction prevailing technology technology since China the 1990s is dynamic three
Stage countercurrent extraction.So-called three-level countercurrent leaching is that 2~3 pot for solvent extraction are used in the leaching process three times of vegetable material, one
Used extraction solvent is another tank inversely certain corresponding leachate respectively to tank three times, i.e., leaching solvent is at 2 or 3
It is mutually applied in pot for solvent extraction, so that the average motive force extracted three times is maximum.Dynamic three-level countercurrent leaching technique is modern plant
An important process in the extraction of object material, is the most common technology and equipment of China's extraction industry, and process flow exists
It is completed in 24 hours.In the process by taking double tanks throw 100kg vegetable material (throwing 4 total 400kg altogether) every time as an example, solid-to-liquid ratio 1:
8, in the extraction process of different extracting times, add water 6 times to tank altogether, wherein 4 times every time plus 950kg, have 2 addition 800kg, 24
Hour completes leaching process.400kg vegetable material is amounted to, aqueous solvent 5400kg is consumed, water content consumption is big visible general.And tank
The solid-to-liquid ratio that formula extracts stevioside is more up to 1:22, and the waste liquid amount of water consumption and discharge is even more surprising, and extracts process
Many and diverse degree is also even more quite big.In addition, in the steviol glycoside extracting solution obtained using hot water extraction, other than steviol glycoside,
It is also the 5 of steviol glycoside content containing impurity, the contents of these impurity such as a large amount of protein, organic acid, chlorophyll, inorganic salts
To 7 times, it is necessary to carry out separation and purification treatment to it.Since there is also microorganisms in extracting solution impurity, and microbes utilize sweet tea
Carbon source and nitrogen source in the crude extract of synanthrin glycosides constantly growth and breeding, be easy to appear in subsequent separation process filtering slowly,
The problems such as pillar blocks when crossing column.
Utility model content
In view of this, the present invention provides a kind of novel devices for preparing steviol glycoside, introduce in extraction system
Microfluidizer carries out dynamic super-voltage micro jet extraction, realizes the rapidly and efficiently extraction to steviol glycoside and has to microorganism
Effect inhibits, and greatlys save water content consumption；In separation and concentrate drying system, by plate and frame filter press, resin adsorption device, film
Separator, freezing concentrating device and spray-drying installation are used in combination, and carry out multistage physical separation, and good separating effect is organic
Solvent usage amount is extremely few.Steviol glycoside is prepared using the equipment of the utility model, water and energy consumption are small, and waste liquid is few, mention
Take rate and extraction efficiency high, separative efficiency is high, superior product quality.
A kind of equipment preparing steviol glycoside, comprising: pretreatment system, extraction system, separation system and concentrate drying system
System；Wherein,
The pretreatment system includes medicine cutter, Blowing stopper and the first storage tank, wherein the medicine cutter bottom discharge port
It being connect with the entrance of the Blowing stopper, the outlet of the Blowing stopper is connect with the entrance of first storage tank, meanwhile, described
The entrance of one storage tank is also connect with water inlet pipe；
The extraction system includes homogenizer, microfluidizer and the second storage tank, wherein the arrival end of the homogenizer with
The outlet of first storage tank connects, and the outlet end of the homogenizer is connect with the arrival end of the microfluidizer, described micro-
The outlet end of jet machine is connect with the entrance of second storage tank, and the outlet at bottom of second storage tank is equipped with filter screen；
The separation system includes plate and frame filter press, the first surge tank, macroporous resin adsorption device, waste tank, elution
Liquid storage tank and membrane separation device, wherein the inlet of the plate and frame filter press is connect with the outlet at bottom of second storage tank,
The liquid outlet of the plate and frame filter press is connect with the entrance of first surge tank, the outlet of first surge tank and described big
The adding mouth of hole resin adsorption device connects, the outlet of the macroporous resin adsorption device simultaneously with the waste tank, wash
De- liquid storage tank connection, the elution liquid storage tank are also connect with the entrance of the membrane separation device；
The concentrate drying system includes freezing concentrating device, the second surge tank and spray-drying installation, and the freezing is dense
The entrance of compression apparatus is connect with the outlet of the membrane separation device, the outlet of the freezing concentrating device and second surge tank
Entrance connection, the outlet of second surge tank is connect with the spray dryer.
In preferred technical solution, first storage tank has agitating device, for by the mixing of powder material and water
Object stirs evenly.
In preferred technical solution, second storage tank is made of tank body with the collet for being located at tank body periphery, in collet
Equipped with electric heating and/or steam heater, in this case, second storage tank is substantially extractor, and the tank body is used
In accommodating the microjet extracting solution and extracting, the collet is for heating the intracorporal mixed material of tank, in this way
Extraction at a certain temperature may be implemented.
The macroporous resin adsorption device is usually macroporous resin adsorption column.In preferred technical solution, the macropore tree
Rouge adsorbent equipment is made of four series connection macroporous resin adsorption columns.
In preferred technical solution, the diameter height of the macroporous resin adsorption column compares for 1:8~1:12.
In preferred technical solution, the macroporous resin adsorption column is DA-201 or AB-8 type macroporous resin adsorption column.
In preferred technical solution, the membrane separation device takes ceramic membrane, and membrane aperture is 30~50nm.
In preferred technical solution, the ceramic membrane is alumina ceramic membrane, titanium oxide ceramics film or zirconia ceramics film.
In preferred technical solution, ceramic film component is Multichannel ceramic membrane pipe in the membrane separation device.
In the utility model, the connection can be and be directly connected to, and be also possible to be attached by pipeline, can be with
It is to be attached by pipeline and pump.It, can also basis in the case where being connected by pipeline or being connected by pipeline and pump
It needs that control valve is arranged on pipeline.
In the utility model, the homogenizer is also known as high pressure homogenizer, and the microfluidizer is also known as microjet homogeneous
Machine, microjet high pressure homogenizer or microjet superhigh-voltage homogenizing machine.
Steviol glycoside is prepared using the equipment of the utility model, microfluidizer is introduced in extraction system and carries out dynamic ultrahigh
It presses microjet to extract, Stevia leaves is crushed and are modified using instantaneous high pressure technology with micro flowrate, so that sweet taste therein
Ingredient is subjected to the liquid-liquid of microjet instantaneous high pressure, liquid-solid high-speed impact effect, high speed shear effect, cavitation, oscillation
(vibration) effect and " extruding " act on and accelerate dissolution, and the utmostly activity of retentive activity substance, meanwhile, it is therein micro-
Biology miscellaneous bacteria eucaryotic cell structure under the effect of these power changes, and reaches sterilization purpose, it is thereby achieved that the letter of steviol glycoside
Effective inhibition of single high efficiency extraction and microorganism greatlys save water while the efficiency for extracting process is significantly improved
Preparation time is consumed and reduced, later separation process is also made to be easier to efficiently carry out, avoids the stifled of adsorption column and seperation film
Plug, reduces the number of absorption group regeneration and Membrane cleaning, to significantly simplify entire technique, shortens the production cycle, energy-efficient
And cost is saved, also ensure the quality of extract.
Steviol glycoside is prepared using the equipment of the utility model, in separation and concentrate drying system, by plate compression
Machine, resin adsorption device, membrane separation device, freezing concentrating device and spray-drying installation are used in combination, and carry out multistage physics point
From, good separating effect, and alcohol precipitation need not be taken to clean, without using zwitterion resin to carry out desalination bleaching, both significantly
Process flow is simplified, and reduces the use of organic solvent to the maximum extent, is conducive to the structural defence to active material, is protected
The safety of final products is demonstrate,proved, while also being reduced environmental pollution.In addition, each device energy-wasting taken in the system is small, generate
Waste liquid is also few, has the characteristics that energy conservation and environmental protection.
Compared with the existing technology, the utility model has technical effect beneficial below:
The equipment for taking the utility model prepares steviol glycoside, and extraction system has extraction efficiency high, and extraction time is short, produces
Object activity is good, the few advantage of water content consumption, and separation and concentrate drying system take multistage physical separation, and separative efficiency is high, also
Reduce the use of organic solvent to the maximum extent, waste liquid is few, is also beneficial to the structural defence to active material.The utility model
Equipment be especially suitable for environmental protection preparation high-quality steviol glycoside.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the equipment for preparing steviol glycoside of the utility model.
Fig. 2 is the structural schematic diagram of freeze concentration system in one embodiment of the utility model.
(symbol description)
1 medicine cutter, 2 Blowing stopper
3 first storage tank, 4 homogenizer
5 microfluidizer, 6 second storage tank
7 plate and frame filter press, 8 first surge tank
9 macroporous resin adsorption device, 10 waste tank
11 elution 12 membrane separation devices of liquid storage tank
13 freezing concentrator, 14 second surge tank
15 spray dryer A water inlet pipes
20 feed inlet, 21 solution to be concentrated storage tank
22 scraping plate type heat exchangers 23 recrystallize tank (mature tank)
24 blender, 25 filter
26 perforated piston, 27 washing column
28 ice crystals melt with 29 circulating pump of heat exchanger
30 refrigerant, 40 concentrate
50 ice melting liquids
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with drawings and examples.Those skilled in the art
Member is it should be understood that the following examples are merely to illustrate the utility model, and should not be regarded as limiting the scope of the utility model.
As shown in Figure 1, in a specific embodiment of the utility model, a kind of equipment preparing steviol glycoside, comprising: pre- place
Reason system, extraction system, separation system and concentrate drying system.
(1) pretreatment system, including medicine cutter 1, Blowing stopper 2 and the first storage tank 3,1 bottom discharge port of medicine cutter and pass
The entrance of blower 2 connects, and the outlet of Blowing stopper 2 is connect with the entrance of the first storage tank 3, meanwhile, the entrance of the first storage tank is also
It is connect with water inlet pipe A；
Wherein, medicine cutter 1 is used to chop up raw material for powder material, and Blowing stopper 2 is used to control the stream of powder material
Amount realizes that the first storage tank 3 is for accommodating to be gone out by Blowing stopper 2 by controlling the revolving speed for the pivoting leaf being arranged in Blowing stopper 2
The powder material of mouth conveying and the mixture by the water inlet pipe A water being added.Agitating device can be had in first storage tank 3, it will
Powder material is uniformly mixed with water.
(2) extraction system, including high pressure homogenizer 4, microfluidizer 5 and the second storage tank 6, the entrance of high pressure homogenizer 4
End connect the outlet end of high pressure homogenizer 4 and entering for microfluidizer 5 (by pump connection in Fig. 1) with the outlet of the first storage tank 3
The connection of mouth end, the outlet end of microfluidizer 5 are connect (by pump connection in Fig. 1) with the entrance of the second storage tank 6, the second storage tank
6 outlet at bottom is equipped with filter screen；
Wherein, high pressure homogenizer 4 is used to carry out mixture high-pressure homogeneous, is homogenized；Microfluidizer 5 is used for gained
Homogenate carries out microjet extraction, obtains microjet extracting solution；Conventional storage tank both can be selected in second storage tank 6, only makees storing
It is used, may be set to be extractor, that is, the second storage tank 6 can be made of tank body and the collet for being located at tank body periphery, in collet
Equipped with electric heating and/or steam heater, tank body is for accommodating above-mentioned microjet extracting solution and carrying out refluxing extraction, collet
For heating to the intracorporal mixed material of tank, refluxing extraction at a certain temperature may be implemented in this way.
(3) separation system include plate and frame filter press 7, the first surge tank 8, macroporous resin adsorption device 9, waste tank 10,
Elution liquid storage tank 11 and membrane separation device 12, the inlet of plate and frame filter press 7 are connect with the outlet at bottom of the second storage tank 6, plate
The liquid outlet of frame filter press 7 is connect with the entrance of the first surge tank 8, the outlet of the first surge tank 8 and macroporous resin adsorption device 9
Adding mouth connection, the outlet of macroporous resin adsorption device 9 connect with waste tank 10, elution liquid storage tank 11 simultaneously, elution
Liquid storage tank 11 is also connect (by pump connection in Fig. 1) with the entrance of membrane separation device 12；
Wherein, plate and frame filter press 7 is used to carry out filters pressing to extracting solution to obtain pressing filtering liquid.
Macroporous resin adsorption device 9 is used to carry out pressing filtering liquid adsorbing separation and be washed by the parsing of the lower alcohol of C1~C3
It is de-, it collects lower alcohol and parses eluent.The liquid flowed out after 9 loading of macroporous resin adsorption device enters waste tank 10, greatly
Hole resin adsorption device 9 parses eluent and enters elution liquid storage tank 11.Macroporous resin adsorption device 9 is usually macroporous resin adsorption
Column or adsorbent bed, for example, can be made of four series connection macroporous resin adsorption columns.The diameter height ratio of macroporous resin adsorption column can be 1:8
~1:12.Macroporous resin adsorption column can be DA-201 or AB-8 type macroporous resin adsorption column.
Membrane separation device 12 is used to carry out UF membrane to above-mentioned eluent to obtain UF membrane liquid, and membrane separation device 12 can be adopted
Ceramic super-filtering film is taken, membrane aperture is 30~50nm, and ceramic membrane materials can be in aluminium oxide, titanium oxide or zirconium oxide at least one
Kind, ceramic film component is Multichannel ceramic membrane pipe.
(4) concentrate drying system includes freezing concentrating device 13, the second surge tank 14 and spray-drying installation 15, is freezed dense
The entrance of compression apparatus 13 is connect with the outlet of membrane separation device 12, the outlet of freezing concentrating device 13 and entering for the second surge tank 14
Mouth connection, the outlet of the second surge tank 14 are connect (by pump connection in Fig. 1) with spray dryer 15.
Wherein, freezing concentrator 13 is used to carry out freeze concentration to above-mentioned UF membrane liquid to obtain frozen concentrated liquid, freezes dense
Contracting liquid is transferred to the second surge tank 14.
Spray dryer 15 to the frozen concentrated liquid for being placed in the second surge tank 14 for being spray-dried to obtain stevioside
Glycosides finished product.
In the utility model, each device can be the commercial product directly bought from market.For example, in above-described embodiment,
Medicine cutter can buy (model QJXC type rotating disc type medicine cutter) from Hangzhou Hai Shan pharmaceutical equipment limited liability company, and Blowing stopper can
From Changzhou, rules and forms drying equipment Co., Ltd is bought, and high pressure homogenizer (GYB50-6S) can be purchased from Shanghai East China high pressure homogenizer factory
, Microfluidizer microfluidizer (M-110EH) is U.S. Microfluidics Products, can be from the more the father-in-law in market
Department buys, and plate and frame filter press can be bought from Hangzhou positive group filter plant Co., Ltd, and resin separating column device can be from Taizhou City China
Source experimental facilities Co., Ltd buys, and macroporous absorbent resin can be bought from Xi'an Sunresin New Materials Co., Ltd., film
Separator can be bought from Nanjing Ai Yu Qi Mo Science and Technology Ltd., and freezing concentrator can be from the limited public affairs of Shanghai net environmental protection equipment difficult to understand
Department buys, and can also voluntarily build Grenco freeze concentration system as shown in Figure 2, and spray dryer can be set from the drying of Hangzhou Qianjiang
(model LPG) buys in standby Co., Ltd；Storage tank, surge tank can be bought from Wuxi City Kang Peng chemical device Manufacturing Co., Ltd.
Fig. 2 shows the structures of Grenco freeze concentration system, comprising: solution to be concentrated storage tank 21, scraper-type heat exchange
Device 22, recrystallization tank 23, washing column 27 and ice crystal melt with heat exchanger 28, wherein blender 24 is had in recrystallization tank 23,
And filter 25 is housed in bottom, perforated piston 26 is equipped in washing column 27, in solution to be concentrated storage tank 21 and scraper-type heat
Between exchanger 22 be equipped with circulating pump 29, washing column 27 and ice crystal melt between heat exchanger 28 be equipped with circulating pump 29.To
Concentration material enters solution to be concentrated storage tank 21 by feed inlet 20, and is pumped into scraped surface heat exchanger 22 by circulating pump 29,
Due to being passed through refrigerant 30 in scraped surface heat exchanger 22, material to be concentrated generates ice crystal in scraped surface heat exchanger 22 and is sent to again
Crystallizing tank 23, in recrystallization tank 23, small ice crystal melts, large ice crystals are grown up, and Ostwald's effect is sufficiently applied, ice
Crystalline substance enters washing column 27, and under the squeezing action of perforated piston 26, the feed liquid overflowed from the mesh of piston participates in recycling again,
Large ice crystals are discharged by washing column 27, while using the large ice crystals of the cleaning discharge of ice melting liquid 50, large ice crystals surface entrainment it is molten
Liquid is recycled；Feed liquid is not crystallized and is flowed out via filter 25 from the bottom of recrystallization tank 23, and concentrate 40, concentrate 40 are obtained
Circulation can be participated in again by circulating pump 29, also, after concentrate 40 reaches required concentration, it can also be from recrystallization tank 23
Bottom be expelled directly out.
The equipment of the utility model can be used for preparing steviol glycoside from the blade of STEVIA REBAUDIANA, be illustrated below:
STEVIA REBAUDIANA cured leaf (being purchased from Jiangxi Gan County) after drying is put into medicine cutter 1, after chopping up crushing, starts Blowing stopper 2,
Powder material flows into feeding pipe by Blowing stopper 2 and will be transported to the first storage tank 3, starts in the first storage tank 3
Agitating device is stirred to the first storage tank 3 plus water after forty minutes, by the first storing by feed liquid weight ratio 1:12 by water inlet pipe A
Mixed material in tank 3 is sent to high pressure homogenizer 4, and homogenization pressure 30MPa, homogeneous extracts 10min in homogenizer, obtains
Homogenate (can also homogeneous it is multiple, such as 2 times)；Homogenate is sent in microfluidizer 5 and is handled, pressure 120MPa is extracted, obtains
It (can also be handled repeatedly, such as 2 times) to microjet extracting solution；Microjet extracting solution is placed in the second storage tank 6, is heated to back
Stream extracts the control valve for opening the exit of the second storage tank 6 after forty minutes, so that the reaction mass by filter screen coarse filtration
(being 98.2% through detection steviol glycoside recovery rate) is filtered (filters pressing) by plate and frame filter press 7 and obtains filtered fluid (filters pressing
Liquid), filtered fluid (pressing filtering liquid) is introduced into the first surge tank 8, after mixing evenly, is loaded to macroporous resin adsorption device 9 (by going here and there
Four AB-8 type macroporous resin adsorption columns composition of connection), upper column flow rate is 2BV/h, is connected serially to after first efflux is pleasantly sweet
Second, until the 4th, when the 4th upper prop volume is about 40~45% volume of first three root upper prop average external volume in stopping
Column；Then, it carries out series connection from first addition with pure water to clean, cleaning flow velocity is series connection 0.5~1BV/h of total volume, until flowing
Liquid is clarified out, and the efflux of collection enters waste tank 10, pending liquid waste processing；Finally, every column uses the volume of 2.5BV respectively
The ethyl alcohol that percentage is 65 ± 2% is parsed, and parsing flow velocity is 0.5~0.6BV/h, is collected ethyl alcohol and is parsed eluent, ethyl alcohol
Parsing eluent enters elution liquid storage tank 11.The eluent eluted in liquid storage tank 11 is separated by membrane separation plant 14,
It controls high pressure pump outlet pressure and is less than 1.5Mpa, for operating temperature less than 45 DEG C, separating liquid specific gravity 1.02~1.05 obtains UF membrane
Liquid；UF membrane liquid is sent into freezing concentrator 13 and carries out freeze concentration, and setting refrigerant temperature is -8 DEG C and scraper revolving speed 150r/
Min is concentrated into specific gravity 1.15~1.17, obtains frozen concentrated liquid；Frozen concentrated liquid is pumped into the second surge tank 14, by spraying
Drying machine 15 is dried, and 195 ± 5 DEG C of inlet air temperature of control is spray-dried under the conditions of 85 ± 5 DEG C of leaving air temp, obtains stevia rebaudianum
Glycoside products, purity 91.2%.Finally product is sterilized, is packed, finished product is obtained.
As it can be seen that the equipment using the utility model prepares steviol glycoside, microfluidizer is introduced in extraction system and is moved
State super-voltage micro jet extracts, and Stevia leaves are crushed and are modified using instantaneous high pressure technology with micro flowrate, so that wherein
Sweet ingredient be subjected to the liquid-liquid of microjet instantaneous high pressure, the effect of liquid-solid high-speed impact, high speed shear effect, hole are made
Accelerate to dissolve out, and the utmostly activity of retentive activity substance with, oscillation (vibration) effect and " extruding " effect, meanwhile,
Microorganism therein miscellaneous bacteria eucaryotic cell structure under the effect of these power changes, and reaches sterilization purpose, it is thereby achieved that stevia rebaudianum
Glucosides is simple and efficient extraction and effective inhibition of microorganism, while the efficiency for extracting process is significantly improved, significantly
Save water content consumption (water consumption reduce 50% or more) and simultaneously reduce preparation time, also make later separation process be easier to efficiently into
Row, avoids the blocking of adsorption column and seperation film, reduces the number of absorption group regeneration and Membrane cleaning, to significantly simplify entire
Technique shortens the production cycle, and energy-efficient and saving cost also ensures the quality of extract.It is separating and is being concentrated and dried
In system, plate and frame filter press, resin adsorption device, membrane separation device, freezing concentrating device and spray-drying installation, which are combined, to be made
With, carry out multistage physical separation, good separating effect, and alcohol precipitation need not be taken to clean, without use zwitterion resin into
Row desalination bleaching not only significantly simplifies process flow, but also reduces the use of organic solvent to the maximum extent, is conducive to activity
The structural defence of substance guarantees the safety of final products, while also reducing environmental pollution.In addition, taken in the system
Each device energy-wasting is small, generates waste liquid also less, has the characteristics that energy conservation and environmental protection.The equipment of the utility model is especially suitable for environmental protection preparation
The steviol glycoside of high-quality.
It can be seen that the purpose of this utility model completely and is effectively achieved.The function of the utility model and
Structural principle is shown and is illustrated in embodiment, and without departing substantially from the principle, embodiment can be made arbitrarily
Modification.So the utility model includes all variant embodiments based on claim spirit and scope of the claims.
Claims (7)
1. a kind of equipment for preparing steviol glycoside, comprising: pretreatment system, extraction system, separation system and concentrate drying system；
It is characterized in that,
The pretreatment system includes medicine cutter, Blowing stopper and the first storage tank, wherein the medicine cutter bottom discharge port and institute
The entrance connection of Blowing stopper is stated, the outlet of the Blowing stopper is connect with the entrance of first storage tank, meanwhile, first storage
The entrance of batch can is also connect with water inlet pipe；
The extraction system includes homogenizer, microfluidizer and the second storage tank, wherein the arrival end of the homogenizer with it is described
The outlet of first storage tank connects, and the outlet end of the homogenizer is connect with the arrival end of the microfluidizer, the microjet
The outlet end of machine is connect with the entrance of second storage tank, and the outlet at bottom of second storage tank is equipped with filter screen；
The separation system includes plate and frame filter press, the first surge tank, macroporous resin adsorption device, waste tank, eluent storage
Tank and membrane separation device, wherein the inlet of the plate and frame filter press is connect with the outlet at bottom of second storage tank, described
The liquid outlet of plate and frame filter press is connect with the entrance of first surge tank, the outlet of first surge tank and the macropore tree
The adding mouth of rouge adsorbent equipment connects, the outlet of the macroporous resin adsorption device simultaneously with the waste tank, eluent
Storage tank connection, the elution liquid storage tank are also connect with the entrance of the membrane separation device；
The concentrate drying system includes freezing concentrating device, the second surge tank and spray-drying installation, the freeze concentration dress
The entrance set is connect with the outlet of the membrane separation device, the outlet of the freezing concentrating device and entering for second surge tank
Mouth connection, the outlet of second surge tank is connect with the spray dryer.
2. the equipment for preparing steviol glycoside as described in claim 1, which is characterized in that first storage tank is with stirring dress
It sets.
3. the equipment for preparing steviol glycoside as described in claim 1, which is characterized in that second storage tank is by tank body and sets
Collet in tank body periphery is constituted, and electric heating and/or steam heater are equipped in the collet.
4. the equipment for preparing steviol glycoside as described in claim 1, which is characterized in that the macroporous resin adsorption device is by four
The concatenated macroporous resin adsorption column of root is constituted.
5. the equipment for preparing steviol glycoside as claimed in claim 4, which is characterized in that the diameter of the macroporous resin adsorption column is high
Than for 1:8~1:12.
6. the equipment for preparing steviol glycoside as described in claim 1, which is characterized in that the membrane separation device takes ceramics
Film, membrane aperture are 30~50nm.
7. the equipment for preparing steviol glycoside as described in claim 1, which is characterized in that ceramic membrane group in the membrane separation device
Part is Multichannel ceramic membrane pipe.
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| CN201821035811.5U CN208454856U (en) | 2018-07-02 | 2018-07-02 | A kind of equipment preparing steviol glycoside |
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| CN201821035811.5U CN208454856U (en) | 2018-07-02 | 2018-07-02 | A kind of equipment preparing steviol glycoside |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187315A (en) * | 2019-05-10 | 2020-05-22 | 上海悦然生物科技有限公司 | Extraction system and extraction process of stevioside |
| CN114261127A (en) * | 2021-12-10 | 2022-04-01 | 湖南绿蔓生物科技股份有限公司 | Sweet glycoside stoste's intelligence squeezes extraction element in sweetleaf chrysanthemum |
-
2018
- 2018-07-02 CN CN201821035811.5U patent/CN208454856U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187315A (en) * | 2019-05-10 | 2020-05-22 | 上海悦然生物科技有限公司 | Extraction system and extraction process of stevioside |
| CN111187315B (en) * | 2019-05-10 | 2023-03-14 | 上海悦然生物科技有限公司 | Extraction system and extraction process of stevioside |
| CN114261127A (en) * | 2021-12-10 | 2022-04-01 | 湖南绿蔓生物科技股份有限公司 | Sweet glycoside stoste's intelligence squeezes extraction element in sweetleaf chrysanthemum |
| CN114261127B (en) * | 2021-12-10 | 2023-12-26 | 湖南绿蔓生物科技股份有限公司 | Intelligent squeezing and extracting device for stevioside stock solution in stevia rebaudiana |
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