CN201760112U - Device for post powder preparation of water-soluble gardenia yellow pigment original solution - Google Patents
Device for post powder preparation of water-soluble gardenia yellow pigment original solution Download PDFInfo
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- CN201760112U CN201760112U CN2010205074009U CN201020507400U CN201760112U CN 201760112 U CN201760112 U CN 201760112U CN 2010205074009 U CN2010205074009 U CN 2010205074009U CN 201020507400 U CN201020507400 U CN 201020507400U CN 201760112 U CN201760112 U CN 201760112U
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Abstract
The utility model discloses a device for the post powder preparation of water-soluble gardenia yellow pigment original solution, which consists of a dewatering box, a receiving disc, a heating thermostatic plate, a vapor condenser and a vacuum pump, wherein the dewatering box is internally provided with the receiving disc and the heating thermostatic plate; the receiving disc is arranged on the heating thermostatic plate; the vapor condenser is arranged below the dewatering box which is externally connected with the vacuum pump. Powder is prepared from the gardenia yellow pigment original solution by vacuum dewatering at the temperature of 35 to 60 DEG C; during the vacuum dewatering, the gardenia yellow pigment original solution is controlled to have a concentration of 15%wt to 30%wt, a thickness of 5mm to 15mm and a vacuum degree of 0.05MPa to 0.09MPa; and water-soluble gardenia yellow natural pigment dry powder with a moisture content of 3%wt to 5%wt is obtained. The powder has a colority approximately same as that of the powder obtained by vacuum freeze drying and higher than that of the powder obtained by ordinary spray drying by 8 colorities and an optical density (OD) of 0.4.
Description
Technical field:
The utility model relates to employed device in a kind of later stage dehydration flouring technology of later stage preparation technology's equipment therefor, particularly Gardenia Yellow of natural food pigment.
Background technology:
Gardenia Yellow is the rare water-soluble carotenoid of a class, have that raw material is easy to get, inexpensive, product safety, strong coloring force and advantage such as easy to use, and possess and reduce myocardial contractive power and prevent health-care efficacy such as arteriosclerosis, therefore be widely used in food service industry and cosmetic industries such as beverage, cake, candy, Flour product, drinks and dairy products, have good development space and vast market prospect.
Yet in the production and application process of Gardenia Yellow, but exist easy oxidized decomposition and the shortcoming of fading.Cause that the reason that Gardenia Yellow fades is because crocetin and crocetin molecule itself contain the shortcomings such as shelf-life weak point of unsaturated double-bond and liquid condition product, make it be subject to light, heat, H
+, destruction such as acid, metal ion, oxidant, gradually become saturated hydrocarbons by unsaturated hydrocarbons, thereby the absworption peak of pigment solution drifted about to the ultra-violet (UV) band, promptly fade; Chlorogenic acid in the pigment is very easily oxidized in addition, and makes painted food deepening, has had a strong impact on the product quality of natural gardenia yellow pigment, has reduced economic benefit.
Problem is hereto extracted in earlier stage at Gardenia Yellow, the separation and purification stage, and scientific research personnel's research has both at home and abroad also proposed the multiple extraction of Gardenia Yellow and the optimization technology of separation and purification, has guaranteed that to greatest extent Gardenia Yellow active ingredient is not destroyed.But the stage of powder process in the end, the present industrial spray-drying that mostly adopts, the spray-drying that adopts in last dehydration powder process stage in the CN 1847323A patent for example, EAT is 175-195 ℃, leaving air temp has reached 85-105 ℃, this makes Gardenia Yellow be exposed in the environment of high temperature, oxygen enrichment, oxidation Decomposition has taken place and causes the reduction of unit product look valency, has influenced the quality of product.Vacuum freeze drying is a kind of milling method, in the CN 101165104A patent, has proposed to adopt the mode of spray-drying or vacuum freeze drying.Though vacuum freeze drying can keep the quality of Gardenia Yellow well, but its energy consumption is big, the cost height, and the production cycle is long, be suitable for producing high value-added product, this makes that vacuum freeze drying can not popularization and application in the Gardenia Yellow industrial production more; In the CN 101077940A patent, introduced a kind of extracting method of Gardenia Yellow, for last Gardenia Yellow powder process mode, also mentioned vacuum drying method, but the material of its processing is the crystalline solid of Gardenia Yellow, and do not offer some clarification on vacuum freeze drying or other vacuum drying in the patent yet, more do not mention relevant dewatering process.
Summary of the invention:
In order to solve the easy oxidation of high temperature that exists in the existing Gardenia Yellow production, the shortcoming that the vacuum freeze drying cost is high, the device that the utility model provides a kind of water-soluble Gardenia Yellow stoste later stage flouring technology to use, make technology have that cost is low, pigment stability good, not oxidized advantage.
The technical solution of the utility model is: the device that a kind of water-soluble Gardenia Yellow stoste later stage powder process is used, by dewatering box, formed by charging tray, heated constant temperature plate, water vapor condenser, vavuum pump, be provided with in the dewatering box and be subjected to charging tray and heated constant temperature plate, be subjected to charging tray on the heated constant temperature plate, dewatering box has water vapor condenser, the external vavuum pump of dewatering box.
Be provided with bypass control valve between vavuum pump and the dewatering box.
Water vapor condenser is connected with cooling device.
The heated constant temperature plate is connected with heater.
Described device is controlled by controller.
The technology that described water-soluble Gardenia Yellow stoste later stage flouring technology is adopted is carried out powder process for Gardenia Yellow stoste is adopted in the method for 35 ℃～60 ℃ of vacuum dehydrations, during vacuum dehydration, the concentration of described Gardenia Yellow stoste is between 15%wt～30%wt, THICKNESS CONTROL is between 5mm～15mm, vacuum degree control is between 0.05MPa～0.09MPa, dewatered with this understanding 20～30 hours, and obtained the water-soluble Gardenia Yellow natural colouring matter dry powder of water content between 3%wt～5%wt.
Beneficial effect:
1. method of the present utility model is in the cryogenic vacuum dehydration, and the temperature of heating plate is controlled in 35 ℃～60 ℃ scopes, has solved Gardenia Yellow and has reduced problem owing to being in the look valency that causes under the high-temperature condition for a long time.
2. in the cryogenic vacuum dehydration, need not cryogenic freezing, dewatering time is shortened to 20～30 hours, energy-conservation about 30%.
3. owing to adopt vacuum condition, make be in all the time in low temperature, the vacuum environment natural gardenia xanthan liquid stage of powder process in the end, Gardenia Yellow is finished dehydration in low-oxygen environment, reduce Gardenia Yellow owing to the oxidized quality decline problem that causes, has guaranteed the quality of product.
4. adopt the low temperature flouring technology that really dewaters to obtain Gardenia Yellow powder-product with the vacuum freeze drying equal quality, and the powder process cost significantly reduce.
5. the vacuum dewatering system of Cai Yonging directly produces vacuum in the dewatering box by vavuum pump, but controls vacuum in the dewatering box by bypass control valve.
6. be provided with a water vapor condenser in the dewatering box bottom, thereby guaranteed the useful effect of vavuum pump.
7. adopt the resulting Gardenia Yellow powder of Gardenia Yellow preparation method of the present utility model, the final water content of its product and look valency and vacuum freeze drying product basically identical, high 8 the look valencys of more conventional spray-drying, realized pigment product look valency height, good in economic efficiency, and technology is simple, and low, the simple operation and other advantages of cost has large-scale industrialization and is worth.
Description of drawings
Fig. 1 is the utility model: cryogenic vacuum dewater unit work schematic diagram.
1 is dewatering box, and 2 for being subjected to charging tray, and 3 is the heated constant temperature plate, and 4 is condenser, and 5 is vavuum pump, and 6 is that bypass control valve 7 is heater, and 8 is cooling device.
The specific embodiment:
Below in conjunction with embodiment the utility model is described further.
Described cryogenic vacuum dehydration preparation Gardenia Yellow powder: the temperature of heating plate of natural gardenia yellow pigment stoste is controlled between 35 ℃-60 ℃, heating-up temperature is lower than 60 ℃ and has solved natural colouring matter owing to being in the destroyed problem of look valency that causes under the high-temperature condition for a long time, and has improved production efficiency of products.
Described cryogenic vacuum dehydration preparation Gardenia Yellow powder: the thickness of natural gardenia yellow pigment stoste is preferably between the 5mm-15mm.
Described cryogenic vacuum dehydration preparation Gardenia Yellow powder: the mass concentration of natural gardenia yellow pigment stoste preferably is controlled in the 15%-30% scope.
Described cryogenic vacuum dehydration preparation Gardenia Yellow powder: the vacuum in the vacuum tank preferably is controlled between the 0.05MPa-0.09MPa.
The employed device schematic diagram of water-soluble Gardenia Yellow stoste later stage flouring technology described in the utility model is seen accompanying drawing 1.Mainly by dewatering box, formed by charging tray, heated constant temperature plate, water vapor condenser, vavuum pump, be provided with in the dewatering box and be subjected to charging tray and heated constant temperature plate, be subjected to charging tray on the heated constant temperature plate, dewatering box has water vapor condenser, the external vavuum pump of dewatering box.Be provided with the bypass vacuum control valve between vavuum pump and the dewatering box.Water vapor condenser is connected with cooling device.The heated constant temperature plate is connected with heater.Whole device is provided with microcomputer controller and is used for work such as electrical equipment control and data acquiring and recording.Heated constant temperature plate in the dewatering box can heated at constant temperature, and enough heats is provided for the top charging tray that is subjected to, and dewatering box has the low temperature water vapor condenser, is used for the moisture that the condensation upper strata removes, and guarantees the pumping efficiency of vavuum pump.
A kind of water-soluble Gardenia Yellow stoste later stage flouring technology, with through the Gardenia Yellow stoste of separation and purification as raw material, put it into and carry out powder process in the cryogenic vacuum dewater unit.Its stock solution quality concentration is controlled at 15%～30%, and the feed liquid THICKNESS CONTROL is at 5mm～15mm, and vacuum degree control is between 0.05MPa～0.09MPa in the dewatering box, and heating-up temperature is 35 ℃～60 ℃.Dewatered with this understanding 20～30 hours, and obtained the high colour-value water-soluble natural gardenia yellow pigment dry powder of water content between 3%wt-5%wt.
The cryogenic vacuum dewater unit of described preparation Gardenia Yellow powder: its operation principle is material to be dried to be placed be subjected on the charging tray, the decompression dehumidification that under vacuum condition, carries out, dehumidification institute calorific requirement is provided by the heated constant temperature plate, the heated constant temperature plate is connected with heater, adopts the heating of outer circulation constant temperature fluid.Utilize vavuum pump to bleeding in the dewatering box, the wet branch of extracting out carries out the wet branch of cryogenic condensation by the water vapor condenser under the dewatering box earlier, remaining wet branch and fixed gas are discharged through vavuum pump, thereby guarantee that vacuum can be stablized in the dewatering box, and the dehumidification efficient of material is constant.Condenser adopts circulation low temperature freon to obtain to be low to moderate-50 ℃ cryotronl surface temperature.Whole drying and dehydrating process need not the mode dehumidification by freezing and sublimation again because decompression reduces the boiling point of water, makes at a lower temperature, have higher rate of drying, and the quality of thermal sensitivity product is not subjected to the destruction of high temperature substantially.
The cryogenic vacuum dewater unit of described preparation Gardenia Yellow powder: directly produce vacuum in the dewatering box by vavuum pump, and the vacuum in the dewatering box is by vavuum pump with bypass valve aperture size is common regulates.In order to control the vacuum in the dewatering box, between vavuum pump and dewatering box, be provided with the bypass vacuum control valve, at the initial stage of dehydration beginning, this valve is opened to certain aperture, made that the vacuum in the dewatering box reduces, guarantee to be subjected to the feed liquid in the charging tray to be unlikely to bubble because of crossing low pressure moment dehumidification, influence carrying out smoothly of whole dehydration, along with the carrying out of dehydration, this valve can progressively be turned aperture down, until closing at last.
Because the boiling point of water reduces and has the heat of giving of constant temperature heating plate under the low pressure, speed was very fast when the initial stage dewatered, water evaporation quantity is bigger, the steam of in time being taken away by vavuum pump can not make the absolute pressure in the dewatering box become big, vacuum reduces, thereby cause vacuum can accurately not maintain a definite value, and in the utility model, owing to below dewatering box, be provided with water vapor condenser, well solved this problem, the device that just is not condensed that vavuum pump is taken away is caught that sub-fraction steam and the residual fixed gas that condenses, thereby can guarantee the vacustat in the dewatering box, guarantees the dehydration of system.
Embodiment 1:
Through the cape jasmine fresh fruit of maturation that selecting through air-dry, pulverizing, cross Gardenia Yellow stoste behind mesh sieve, ethanol lixiviate, filtration, the recovery ethanol, to be mixed with concentration be 20% mother liquor (surveying its look valency is 120), adopts spray-drying and cryogenic vacuum dehydration dual mode to carry out powder process respectively.At first carry out spray-drying according to parameter shown in the CN 1847323A patent, adopting EAT is 175-195 ℃, and leaving air temp is controlled at 85-105 ℃, and air quantity is 40m3/h, and the gained powder carries out look valency and moisture determination; Get same feed liquid and carry out the cryogenic vacuum dehydration, feed liquid is put into the dish of long 350mm, wide 250mm, high 50mm, controlling its thickness is 7mm, temperature of heating plate is adjusted to 45 ℃, begins simultaneously to vacuumize to dewater, vacuum is set at 0.08Mpa, whole dehydration continues about 24 hours, with the gained powder grind get final product water content at the powder-product of 3%-5%, measure its look valency respectively, and compare with mother liquor look valency.The result shows: the look valency of the powder that obtains through vacuum dehydration is than the mother liquor look valency 32 look valencys that descended, but than high 8 the look valencys of spray-drying.
Embodiment 2:
Directly buy from the market and do mother liquor (the look valency is 120), adopt two kinds of methods of vacuum freeze drying and cryogenic vacuum dehydration to carry out powder process respectively through the Gardenia Yellow stoste of separation and purification.Adopt the material disc of long 350mm, wide 250mm, high 50mm, put into a certain amount of feed liquid, controlling its thickness is 7mm, at first at-45 ℃ of following pre-freeze 2-3 hours, at absolute pressure is about 35 hours of dehydration in the vacuum environment of 400mTorr, and the gained powder is ground its water content and the look valency measured.Secondly the pigment feed liquid of same thickness is carried out cryogenic vacuum dehydration powder process, regulate temperature of heating plate to 45 ℃, vacuum is set at 0.08Mpa, and whole dehydration continues 24 hours.The gained powder is ground mensuration water content and look valency, and the result shows: the final water content of its product and vacuum freeze drying product are respectively 4.09% and 4.43% (moisture wet basis), and the look valency is respectively 87.6 and 88.5, differ less than 1 look valency.And through calculating, vacuum freeze drying energy-conservation about 30% is compared in the cryogenic vacuum dehydration.
Claims (5)
1. device that water-soluble Gardenia Yellow stoste later stage powder process is used, it is characterized in that: by dewatering box, formed by charging tray, heated constant temperature plate, water vapor condenser, vavuum pump, be provided with in the dewatering box and be subjected to charging tray and heated constant temperature plate, be subjected to charging tray on the heated constant temperature plate, dewatering box has water vapor condenser, the external vavuum pump of dewatering box.
2. the device that water-soluble Gardenia Yellow stoste later stage flouring technology as claimed in claim 1 uses is characterized in that: be provided with bypass control valve between vavuum pump and the dewatering box.
3. the device that water-soluble Gardenia Yellow stoste later stage flouring technology as claimed in claim 1 uses, it is characterized in that: water vapor condenser is connected with cooling device.
4. the device that water-soluble Gardenia Yellow stoste later stage flouring technology as claimed in claim 1 uses, it is characterized in that: the heated constant temperature plate is connected with heater.
5. the device that water-soluble Gardenia Yellow stoste later stage flouring technology as claimed in claim 1 uses, it is characterized in that: described device is controlled by controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205074009U CN201760112U (en) | 2010-08-27 | 2010-08-27 | Device for post powder preparation of water-soluble gardenia yellow pigment original solution |
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| CN2010205074009U CN201760112U (en) | 2010-08-27 | 2010-08-27 | Device for post powder preparation of water-soluble gardenia yellow pigment original solution |
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| CN201760112U true CN201760112U (en) | 2011-03-16 |
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| CN2010205074009U Expired - Fee Related CN201760112U (en) | 2010-08-27 | 2010-08-27 | Device for post powder preparation of water-soluble gardenia yellow pigment original solution |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289021A (en) * | 2015-11-23 | 2016-02-03 | 大连华卓生物科技有限公司 | Apparatus and method for concentrating collagen solution used for articular cartilage regeneration |
| CN111780500A (en) * | 2019-04-04 | 2020-10-16 | 苏州合乾新能源科技有限公司 | Low-energy-consumption high-efficiency vacuum baking process for lithium battery positive plate |
-
2010
- 2010-08-27 CN CN2010205074009U patent/CN201760112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105289021A (en) * | 2015-11-23 | 2016-02-03 | 大连华卓生物科技有限公司 | Apparatus and method for concentrating collagen solution used for articular cartilage regeneration |
| CN111780500A (en) * | 2019-04-04 | 2020-10-16 | 苏州合乾新能源科技有限公司 | Low-energy-consumption high-efficiency vacuum baking process for lithium battery positive plate |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20120827 |