CN107062804A - A kind of west safflower alternating temperature drying means - Google Patents
A kind of west safflower alternating temperature drying means Download PDFInfo
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- CN107062804A CN107062804A CN201710214796.4A CN201710214796A CN107062804A CN 107062804 A CN107062804 A CN 107062804A CN 201710214796 A CN201710214796 A CN 201710214796A CN 107062804 A CN107062804 A CN 107062804A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/041—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/02—Biomass, e.g. waste vegetative matter, straw
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Abstract
The invention discloses the method that alternating temperature in a kind of west safflower process of vacuum drying regulates and controls, can effectively ensure three quality characteristics of west safflower dry product " color, smell and taste ", and west safflower active ingredient crocin content.Its innovative point, which is to dry west safflower, is divided into two stages of fast dewatering and freeze-day with constant temperature：The fast dewatering stage is utilized compared with high dry temperature and vacuum environment, west safflower microcosmic surface is formed of a relatively loose pore structure, accelerates water translocation, shortens drying time；The freeze-day with constant temperature stage, then drying temperature was relatively low, and certain drying temperature is kept under normal atmosphere (An) environment, promoted the bioconversion of crocin.West safflower active constituent content height that this method is dried, good quality, outward appearance condition are good, and the drying process time is short, efficiency high, reduction energy resource consumption.
Description
Technical field
The present invention relates to a kind of west safflower alternating temperature drying means, belong to pharmaceutical technology field.
Background technology
West safflower Stigma Croci are irides safron Crocus Sativus L. drying column cap, also known as
Safflower, safron.Most rare spices in the world because it is only used as medicine with gynoecium top column cap, be also rare medicinal material it
One, it is described as " red gold ".《Chinese Pharmacopoeia》Recording has promoting blood circulation and removing blood stasis, removing pattogenic heat from the blood and toxic material from the body, resolving stagnation for tranquilization effect, modern study
Show that west safflower also has good bioactivity resisting myocardial ischemia, in terms of antitumor, antidepression and prevention senile dementia.
China introduces a fine variety west safflower in the 1980s, and at present, Zhejiang, Shanghai, Jiangsu Province are domestic main production
Area.Zhejiang Province's west safflower cultivated area account for the whole nation more than 50%, 2012, Zhejiang Province's west safflower industry production value 100,000,000 yuan with
On, the Important Economic source as local farmers planting household.
Drying is a kind of the most frequently used processing method of medical material quanlity, to reach reduction water activity, suppresses the life of microorganism
Long and breeding, extends the purpose of food storage phase.Traditional west safflower drying means, which has, to dry in the shade, dries or electromagnetic oven drying
Deng, but the operation of these methods is more empirically to be carried out, it is impossible to ensure the quality of west safflower.《Zhejiang Province's Chinese medicine preparation specification》
Referred only to " being harvested during fall flowering, low temperature drying " for the regulation that west safflower is dried.In addition,《Harmless Traditional Chinese Medicine west safflower》
Zhejiang Province's provincial standard (DB33/T 530.3-2005) third portion production and processing technical regulation requirement " same day adopt under flower
The silk same day is dried, and is spread out in filigree is thin on blank sheet of paper, one layer of blank sheet of paper of upper cover, and slow fire or baking are then used under the conditions of 40 DEG C~50 DEG C
Case dries 3h~5h to dry.It should not dry and dry in the shade ".It can be seen that, two ministerial standards are dried for west safflower and are required to be dry at low temperature
Dry, still, foreign scholar's research shows that the temperature of west safflower heat drying is not more low better, of a relatively high drying temperature
Can improve finished product crocin content.Research finds 90 DEG C of dry 47min crocins component content highests, compared to 60 DEG C
Dry 95min crocin contents and be higher by 45%.Think with reference to our early-stage Studies, compared with the west safflower processing side of high dry temperature
Method will be former methodical technology upgrading.On the one hand, moisture is the important medium of crocin degraded, and drying temperature is higher, energy
It is enough to rapidly remove moisture in the short period of time, reduce the degradation of active ingredient crocin；On the other hand, there is research table
Bright, west safflower there may be biosynthesis conversion reaction in the drying process, and specific temperature conditionss will promote crocin to exist
Formed in cytosome.Therefore, the improvement of west safflower drying means can not only be processed the saving time, also the quality to west safflower
Quality is guaranteed, has obvious impetus to west safflower industrial upgrading.
It is contemplated that fresh west safflower is processed into dry finished product by the drying of vacuum drying chamber alternating temperature.
The content of the invention
The technical problem existed based on background technology, the present invention is provided alternating temperature in a kind of west safflower process of vacuum drying and regulated and controled
Method, can effectively ensure three quality characteristics of west safflower dry product " color-perfume (or spice)-taste ", and west safflower active ingredient west safflower
The content of glycosides.Its innovative point, which is to dry west safflower, is divided into two stages of fast dewatering and freeze-day with constant temperature：The fast dewatering stage
Using compared with high dry temperature and vacuum environment, making west safflower microcosmic surface form of a relatively loose pore structure, moisture is accelerated to move
Move, shorten drying time；The freeze-day with constant temperature stage, then drying temperature was relatively low, keeps certain under normal atmosphere (An) environment and dries
Temperature, promotes the bioconversion of crocin.West safflower active constituent content height, good quality, the outward appearance condition of this method drying
Good, the drying process time is short, efficiency high, reduces energy resource consumption.
The present invention is achieved by following technical steps：
A kind of vacuum drying method of west safflower, its step is as follows：
(1) west safflower raw material is chosen：Drying is preserved no more than 24h at room temperature with fresh west safflower, or 4 DEG C of fresh-keeping and cold storages are protected
Deposit and be no more than 7d no more than 48h, or -20 DEG C of freezen protectives.
(2) pre-treatment is dried：West safflower, which is dried, uses thin layer drying method, and west safflower individual layer (thickness about 0.8mm) is layered on
In sample tray, the matter-loading amount of west safflower sample is 50~70g/m2 in each pallet.
(3) the fast dewatering stage：80~100 DEG C of preheating 30min of baking oven, step (2) west safflower are put into baking oven, baking oven
Vacuumize, treat that vacuum is shown as -0.1MPa and starts timing, drying time is 15~30min.
(4) the freeze-day with constant temperature stage：Step (3) is connect, oven temperature is adjusted downward to 30~50 DEG C, it is during which that air pressure in baking oven is extensive
Normal atmosphere pressure is arrived again, dries 60~120min.West safflower dry product is stored in glass desicator, and control moisture content exists
Less than 8%.
Technical scheme is preferably：
(1) west safflower sample：Drying is preserved no more than 12h at room temperature with fresh west safflower, or 4 DEG C of fresh-keeping and cold storages are preserved not
72h is no more than more than 24h, or -20 DEG C of freezen protectives.
(2) pre-treatment is dried：West safflower, which is dried, uses thin layer drying method, and west safflower individual layer (thickness about 0.8mm) is layered on
In sample tray, the matter-loading amount of west safflower sample is 60g/m2 in each pallet.
(3) the fast dewatering stage：90 DEG C of preheating 30min of baking oven, step (2) west safflower are put into baking oven, baking oven is taken out very
Sky, treats that vacuum is shown as -0.1MPa and starts timing, drying time is 20min.
(4) the freeze-day with constant temperature stage：Oven temperature is adjusted downward to 45 DEG C, air pressure in baking oven is during which returned into normal atmosphere (An)
Under, dry 90min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Experimental method：
1st, experiment is collected in the local peasant household that Zhejiang Province, China saves Huzhou City with fresh west safflower column cap, and collecting time is 2016
On November 18, in.
3 parts preserve the fresh west safflower samples of 40g for being no more than 12h at room temperature, and individual layer (thickness about 0.8mm) is layered on sample carrier
In disk, the average matter-loading amount of west safflower sample is 60g/m2 in each pallet.Reached Deng baking oven after default temperature 30min, point
It is not put into baking oven, processing is dried by following drying means.
2nd, drying method：
Processing 1 (control 1)：With reference to Zhejiang Province's provincial standard《Harmless Traditional Chinese Medicine west safflower》Drying means, baking oven 40
DEG C 5h is dried, before analysis test, dry west safflower sample is preserved as in glass desicator；
Processing 2 (control 2)：90 DEG C of vacuum (vacuum is shown as -0.1MPa) dry 20min, before analysis test, dry
West safflower sample is preserved as in glass desicator；
Handle 3 (present invention)：90 DEG C of vacuum (vacuum is shown as -0.1MPa) dry 20min, and then normal atmosphere is depressed
45 DEG C of dry 90min, before analysis test, dry west safflower sample is preserved as in glass desicator.
3rd, instrument and reagent
The high performance liquid chromatographs of Agilent 1260, including quaternary pump, automatic sampler and PDAD inspection
Survey device, Anjelen Sci. ＆ Tech. Inc of the U.S.；TU-1900 ultraviolet-uisible spectrophotometers, the general analysis limited public affairs of all purpose instrument in Beijing
Department；GH-202 electronic analytical balances, Japanese A＆D companies；KQ-500DB type numerical control ultrasonic cleaners, city of Kunshan's ultrasonic instrument has
Limit company；SZ61 stereomicroscopes, Olympus (China)Co., Ltd.；ZEISS EVO18 type SEM, karr
Zeiss optics (China) Co., Ltd；Methanol is chromatographically pure, purchased from Merck KGaA company；Water is ultra-pure water, Milli-Q ultra-pure waters
System is made by oneself；Standard items are purchased from National Institute for Food and Drugs Control.
Analysis test method
One) crocin composition measurement
Chromatographic condition Ultimate XB C18 chromatographic columns (250mm × 4.6mm id, 5 μm)；Mobile phase：Water (A)-methanol
(B), solution gradient is eluted, 0-60min, B：20%-100%；Flow velocity is 1.0mLmin-1；Detection wavelength is 440nm；Column temperature
30℃；The μ L of sample size 10.Under this condition, each chromatographic peak has preferable baseline separation.
The preparation of reference substance solution weighs crocin-I and the reference substance of crocin-II is appropriate, and Diluted Alcohol is dissolved into dense
The mixed reference substance solution for 214.40mg/L and 145.20mg/L is spent, is shaken up, it is standby.
The preparation reference of need testing solution《Chinese Pharmacopoeia》2015 editions west safflower assay methods, precision weighs western red
Style product dried powder 10mg, is placed in 50mL brown measuring bottles, plus appropriate Diluted Alcohol, ice-bath ultrasonic process 20min, holding chamber
Temperature, plus Diluted Alcohol are settled to scale, shake up, filtration, take subsequent filtrate, produce.
Two) international standard ISO 3632Value is determined
International standard ISO 3632 is the foundation of quality evaluation in west safflower sale trade, with reference to ISO3632 standard methods
West safflower solution is determinedValue.The light absorption value at 440nm, 330nm, 257nm is determined respectively, measures numerical value according to ISO
3632 standard handovers into representing west safflower color intensity (440nm), odour intensity (330nm) and flavour strength (257nm) respectively
'sValue.
The need testing solution 5mL that precision is drawn, puts in 50mL brown measuring bottles, scale is diluted to Diluted Alcohol, with Diluted Alcohol
Make blank control, according to UV-VIS spectrophotometry, absorbance, each sample are determined at 440nm, 330nm, 257nm wavelength
In triplicate, calculateThree) drying sample displaing microstructure observing
Different drying samples carry out macro morphology observation using SZ61 stereomicroscopes；ZEISS EVO18 type scanning electrons
Microscope carries out surface microscopic observation, and setting electron accelerating voltage is 15kV.Photographed to record under different multiples.
The present invention is advantageous in that：
1st, in the present invention vacuum drying of 90 DEG C of west safflower 20min, 45 DEG C of dry 90min method compared with《Harmless Traditional Chinese Medicine
West safflower》Standard drying method is compared with only 90 DEG C vacuum drying 20min methods, and crocin-I and the content of glycosides-II summation are most
Height, in addition, with reference to the standards of ISO 3632, at wavelength 440,330,257nmIt is worth same highest.The inventive method is western red
Flower methods of glycosides is far above《Chinese Pharmacopoeia》Content standard, can effectively ensure the quality of west safflower drying process.
2nd, vacuum drying aggravates west safflower surface pore structure degree, improves material internal moisture migration rate and thing
Expect surface moisture diffusion rate, and then shorten arid cycle.
Brief description of the drawings
Fig. 1 is the stereomicroscope photo (left side) and electron scanning micrograph (right side) of processing 1；
Fig. 2 is the stereomicroscope photo (left side) and electron scanning micrograph (right side) of processing 2；
Fig. 3 is the stereomicroscope photo (left side) and electron scanning micrograph (right side) of processing 3.
Embodiment
Embodiment 1
Take to preserve at room temperature after harvesting and be no more than the fresh west safflower samples of 12h, using thin layer drying method, west safflower individual layer
(thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 60g/m2 in each pallet.Vacuum drying chamber 90
DEG C preheating 30min, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts timing, is done
The dry time is 20min.Oven temperature is adjusted downward to 45 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, dried
90min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.92%, and crocin-II is 7.64%,440nm
For 229.31,330nm is 33.58,257nm is 90.65.
Embodiment 2
Take to preserve at room temperature after harvesting and be no more than the fresh west safflower samples of 24h, using thin layer drying method, west safflower individual layer
(thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 50g/m2 in each pallet.Vacuum drying chamber 80
DEG C preheating 30min, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts timing, is done
The dry time is 30min.Oven temperature is adjusted downward to 30 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, dried
120min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.88%, and crocin-II is 7.47%,440nm
For 226.59,330nm is 33.48,257nm is 90.55.
Embodiment 3
4 DEG C of fresh-keeping and cold storages after harvesting are taken to preserve no more than the fresh west safflower samples of 24h, it is western red using thin layer drying method
Flower individual layer (thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 55g/m2 in each pallet.Vacuum is done
Dry 85 DEG C of preheating 30min of case, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts meter
When, drying time is 25min.Oven temperature is adjusted downward to 35 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, done
Dry 110min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.77%, and crocin-II is 7.41%,440nm
For 223.65,330nm is 33.24,257nm is 89.50.
Embodiment 4
4 DEG C of fresh-keeping and cold storages after harvesting are taken to preserve no more than the fresh west safflower samples of 48h, it is western red using thin layer drying method
Flower individual layer (thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 60g/m2 in each pallet.Vacuum is done
Dry 90 DEG C of preheating 30min of case, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts meter
When, drying time is 20min.Oven temperature is adjusted downward to 40 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, done
Dry 100min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.68%, and crocin-II is 7.35%,440nm
For 220.54,330nm is 32.00,257nm is 87.42.
Embodiment 5
- 20 DEG C of freezen protectives after harvesting are taken to be no more than the fresh west safflower samples of 72h, using thin layer drying method, west safflower
Individual layer (thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 65g/m2 in each pallet.Vacuum drying
95 DEG C of preheating 30min of case, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts meter
When, drying time is 17min.Oven temperature is adjusted downward to 45 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, done
Dry 90min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.74%, and crocin-II is 7.34%,440nm
For 222.12,330nm is 32.34,257nm is 88.78.
Embodiment 6
- 20 DEG C of freezen protectives after harvesting are taken to be no more than the fresh west safflower samples of 7d, using thin layer drying method, west safflower is single
Layer (thickness about 0.8mm) is layered in sample tray, and the matter-loading amount of west safflower sample is 70g/m2 in each pallet.Vacuum drying chamber
100 DEG C of preheating 30min, fresh west safflower is put into baking oven, and baking oven is vacuumized, and treats that vacuum is shown as -0.1MPa and starts timing,
Drying time is 15min.Oven temperature is adjusted downward to 50 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure, dried
60min.West safflower dry product is stored in glass desicator, and control moisture content is below 8%.
Analysis result is shown：Sample crocin-I is 15.46%, and crocin-II is 7.16%,440nm
For 219.32,330nm is 30.74,257nm is 84.96.
The contrast test of embodiment 7
According to the experimental method in foregoing summary, contrast test is carried out：
Processing 1 (control 1)：With reference to Zhejiang Province's provincial standard《Harmless Traditional Chinese Medicine west safflower》Drying means, baking oven 40
DEG C 5h is dried, before analysis test, dry west safflower sample is preserved as in glass desicator；
Processing 2 (control 2)：90 DEG C of vacuum (vacuum is shown as -0.1MPa) dry 20min, before analysis test, dry
West safflower sample is preserved as in glass desicator；
Handle 3 (present invention)：90 DEG C of vacuum (vacuum is shown as -0.1MPa) dry 20min, and then normal atmosphere is depressed
45 DEG C of dry 90min, before analysis test, dry west safflower sample is preserved as in glass desicator.
Interpretation of result the results are shown in Table 1, and microstructure is shown in accompanying drawing.
Table 1:
As it can be seen from table 1 west safflower drying means in the present invention (processing 3) compared with《Harmless Traditional Chinese Medicine west safflower》Standard
The crocin-I of 40 DEG C of dry 5h methods (processing 1), the summation of glycosides-II are higher by 29.1%；More only 90 DEG C vacuum drying, and lack perseverance
The crocin-I of warm drying process method (processing 2), the summation of glycosides-II are higher by 5.0%.The standards 3 of the inventive method ISO 3632
Individual wavelengthAlso apparently higher than other method.
The inventive method (processing 3) and 2 methods of processing relatively handle the arrangement of 1 method west safflower surface texture and excipuliform is prominent
Play tissue morphology more irregular, surface pore structure degree aggravation (Fig. 1~3).
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (3)
1. a kind of vacuum drying method of west safflower, its step is as follows：
（1）West safflower raw material is chosen；
（2）Dry pre-treatment；
（3）The fast dewatering stage；
（4）The freeze-day with constant temperature stage.
2. the vacuum drying method of west safflower described in claim 1, its step is as follows：
（1）West safflower raw material is chosen：Drying is preserved no more than 24h at room temperature with fresh west safflower, or 4 DEG C of fresh-keeping and cold storages are preserved not
7d is no more than more than 48h, or -20 DEG C of freezen protectives；
（2）Dry pre-treatment：West safflower, which is dried, uses thin layer drying method, and west safflower individual layer (mm of thickness about 0.8) is layered on sample
In pallet, the matter-loading amount of west safflower sample is 50 ~ 70g/m in each pallet2；
（3）The fast dewatering stage：80 ~ 100 DEG C of preheating 30min of baking oven, by step（2）West safflower is put into baking oven, and baking oven is taken out very
Sky, treats that vacuum is shown as -0.1MPa and starts timing, drying time is 15 ~ 30min；
（4）The freeze-day with constant temperature stage：Connect step（3）, oven temperature is adjusted downward to 30 ~ 50 DEG C, during which air pressure in baking oven is returned to
Normal atmosphere is depressed, and dries 60 ~ 120min, and west safflower dry product is stored in glass desicator, and control moisture content is below 8%.
3. the vacuum drying method of west safflower described in claim 1, its step is as follows：
（1）West safflower sample：Drying is preserved no more than 12h at room temperature with fresh west safflower, or 4 DEG C of fresh-keeping and cold storages are preserved and are no more than
24h, or -20 DEG C of freezen protectives are no more than 72h；
（2）Dry pre-treatment：West safflower, which is dried, uses thin layer drying method, and west safflower individual layer (mm of thickness about 0.8) is layered on sample
In pallet, the matter-loading amount of west safflower sample is 60g/m in each pallet2；
（3）The fast dewatering stage：90 DEG C of preheating 30min of baking oven, by step（2）West safflower is put into baking oven, and baking oven is vacuumized, and is treated
Vacuum is shown as -0.1MPa and starts timing, and drying time is 20min；
（4）The freeze-day with constant temperature stage：Oven temperature is adjusted downward to 45 DEG C, air pressure in baking oven is during which returned into normal atmosphere pressure,
90min is dried, west safflower dry product is stored in glass desicator, control moisture content is below 8%.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908534A (en) * | 2013-01-06 | 2014-07-09 | 茅仁刚 | Stigma croci processing method |
| CN105004148A (en) * | 2015-08-31 | 2015-10-28 | 广西立派投资有限公司 | Drying method for star anise |
| CN106288665A (en) * | 2016-08-19 | 2017-01-04 | 东莞市超业精密设备有限公司 | A kind of vacuum drying process |
-
2017
- 2017-04-01 CN CN201710214796.4A patent/CN107062804B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103908534A (en) * | 2013-01-06 | 2014-07-09 | 茅仁刚 | Stigma croci processing method |
| CN105004148A (en) * | 2015-08-31 | 2015-10-28 | 广西立派投资有限公司 | Drying method for star anise |
| CN106288665A (en) * | 2016-08-19 | 2017-01-04 | 东莞市超业精密设备有限公司 | A kind of vacuum drying process |
Non-Patent Citations (2)
| Title |
|---|
| GREGORY: "Effect of Drying Temperature and Air Flow on the Production and Retention of Secondary Metabolites in Saffron", 《JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY》 * |
| 童应鹏: "中药西红花烘干工艺及有效成分的提取工艺和网络药理学研究", 《医药卫生科技辑》 * |
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