CN101301320B - Vacuum freeze-drying technique of notoginseng flower - Google Patents
Vacuum freeze-drying technique of notoginseng flower Download PDFInfo
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- CN101301320B CN101301320B CN2008100586188A CN200810058618A CN101301320B CN 101301320 B CN101301320 B CN 101301320B CN 2008100586188 A CN2008100586188 A CN 2008100586188A CN 200810058618 A CN200810058618 A CN 200810058618A CN 101301320 B CN101301320 B CN 101301320B
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Abstract
The invention relates to a drying process for a special part of a special plant. A panax notoginseng flower vacuum freeze drying process comprises the following steps that: 1), fresh panax notoginseng flowers are collected and washed, with surface water removed; 2), the fresh flowers are put in a pre-refrigerating chamber at a temperature of 80 DEG C below zero to be pre-refrigerated for 10 to 15 minutes; 3) the flowers then are put into a vacuum freeze drying cabinet at a temperature of between 20 DEG C below zero and 40 DEG C below zero, spread flatly and uniformly on an even conductive tray with a height less than 4 cm, the tray is placed on a bench board, the cabinet cover is closed, and the cabinet is vacuumized till the vacuity is between 30 an 50 Pa; 4), when the vacuity reaches the valve, the bench board is heated to a temperature no more than 36 DEG C; 5), the temperature in the center of the panax notoginseng flowers are constantly measured, and when the temperature in the center of the panax notoginseng flowers reaches 0 DEG C, the bench board is heated to between 65 and 70 DEG C within 30 minutes and is heated for 3 to 6 hours; 6), when the temperature in the center of the panax notoginseng flowers is close to that of the bench board, the heating is stopped and the temperature is kept for 1 to 3 hours; 7), the vacuum freeze drying cabinet is stopped, the vacuum is released, the material is discharged and packaged.
Description
Technical field
The present invention relates to drying process for specific positions of specific plants.
Background technology
Chinese patent application number 00102563.5 discloses a kind of " Active pseudo-ginseng ", is to adopt the frozen drying production technology a kind of Radix Notoginseng fabricated product of acquisition under (subzero 30-50 degree) and vacuum state under the specific temperature conditions.Chinese patent application numbers 200310125440.1 discloses a kind of " Active pseudo-ginseng and preparation thereof ", form through frozen drying by bright Radix Notoginseng, be about to whole or the section after bright Radix Notoginseng form through frozen drying, promptly under subzero 20 ℃ of-60 ℃ of conditions freezing 15-55 hour, again through vacuum 70-20Pa and need under 120 ℃ of conditions of latent heat of sublimation temperature dry and make.
Summary of the invention
The object of the present invention is to provide a kind of vacuum freeze-drying technique of notoginseng flower that can keep the material mode of appearance preferably and improve nerve in water.
Vacuum freeze-drying technique of notoginseng flower of the present invention is made up of following steps:
One, the fresh flower of Radix Notoginseng of gathering cleans, and removes surface wettability moisture;
Two, enter the precooling chamber that temperature is set at-80 ℃, precooling 10-15 minute;
Three, enter temperature again and be-20 ℃ to-40 ℃ vacuum freezing drying oven, flower of Radix Notoginseng evenly is tiled in the uniform pallet of heat conduction, and tiling highly is no more than 4 centimetres, and pallet places by lifting on the plate that the heat conduction homogeneous material is made, close upper box lid, being evacuated to vacuum is the 30-50 handkerchief;
Four, arrive above-mentioned vacuum value after, begin heating and lift plate temperature, make and lift plate temperature and be not higher than 36 ℃;
Five, test constantly flower of Radix Notoginseng central temperature after the flower of Radix Notoginseng central temperature is higher than 0 ℃, raise in 30 minutes and lifts plate temperature to 65 ℃-70 ℃, continued heating 3-6 hour;
Six, when the flower of Radix Notoginseng central temperature when lifting plate temperature, stop heating, be incubated 1-3 hour;
Seven, shut down, discharge vacuum, discharging, packing.
Above-mentioned process using first precooling, vacuum freezing, drying, intensification then, make that heat-sensitive materials in the flower of Radix Notoginseng can degeneration in drying, its physics, chemistry, biological characteristics can be preserved to greatest extent, have therefore had the incomparable advantage of other drying meanss.
Process characteristic of the present invention is to remove the bound water that exists with vitreousness in the flower of Radix Notoginseng, reaches the distillation of diving, and the present invention is to the cool naturally technological innovation of shining and toasting heat drying technology of tradition.Can keep the color of flower of Radix Notoginseng and nutritional labeling, active effective ingredient to greatest extent.After the vacuum lyophilization of this technology, the original mode of appearance of maintenance that flower of Radix Notoginseng can be best.And compare the product that other seasonings make and had better rehydration and nerve.
The specific embodiment
Embodiment: in Radix Notoginseng florescence 7, August the nuisanceless flower of Radix Notoginseng of high-quality is gathered, reject impurity, worm, sick leaf, Huang Ye, rotted leaf etc., clean five times, remove silt, worm's ovum, remove the moistening moisture on fresh flower of Radix Notoginseng surface with dewaterer with circulating water.
Enter the precooling chamber that temperature is set at-80 ℃ under the normal pressure, precooling 10-15 minute; Enter the vacuum freezing drying oven that temperature is set at-30 ℃ again, flower of Radix Notoginseng evenly is tiled in the rustless steel pallet, tiling highly is no more than 4 centimetres, pallet places by lifting on the plate that the heat conduction homogeneous material is made, close upper box lid, evacuation is when vacuum is 40 handkerchiefs, begin heating and lift plate temperature, make and lift plate temperature and be not higher than 36 ℃; Test constantly flower of Radix Notoginseng central temperature after the flower of Radix Notoginseng central temperature is higher than 0 ℃, raise in 30 minutes and lifts plate temperature to 65 ℃-70 ℃, continued heating 3 hours-6 hours; When the flower of Radix Notoginseng central temperature when lifting plate temperature, stop heating, be incubated 1 hour-3 hours; Shut down, discharge vacuum, discharging, packing.Can obtain to keep to greatest extent the dry flower of Radix Notoginseng of the color of fresh flower of Radix Notoginseng and nutritional labeling, active effective ingredient.
Claims (1)
1. vacuum freeze-drying technique of notoginseng flower is characterized in that being made up of following steps:
One, the fresh flower of Radix Notoginseng of gathering cleans, and removes surface wettability moisture;
Two, enter the precooling chamber that temperature is set at-80 ℃, precooling 10-15 minute;
Three, enter temperature again and be-20 ℃ to-40 ℃ vacuum freezing drying oven, flower of Radix Notoginseng evenly is tiled in the uniform pallet of heat conduction, and tiling highly is no more than 4 centimetres, and pallet places by lifting on the plate that the heat conduction homogeneous material is made, close upper box lid, being evacuated to vacuum is the 30-50 handkerchief;
Four, arrive above-mentioned vacuum value after, begin heating and lift plate temperature, make and lift plate temperature and be not higher than 36 ℃;
Five, test constantly flower of Radix Notoginseng central temperature after the flower of Radix Notoginseng central temperature is higher than 0 ℃, raise in 30 minutes and lifts plate temperature to 65 ℃-70 ℃, continued heating 3-6 hour;
Six, when the flower of Radix Notoginseng central temperature when lifting plate temperature, stop heating, be incubated 1-3 hour;
Seven, shut down, discharge vacuum, discharging, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100586188A CN101301320B (en) | 2008-07-02 | 2008-07-02 | Vacuum freeze-drying technique of notoginseng flower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100586188A CN101301320B (en) | 2008-07-02 | 2008-07-02 | Vacuum freeze-drying technique of notoginseng flower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101301320A CN101301320A (en) | 2008-11-12 |
| CN101301320B true CN101301320B (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100586188A Active CN101301320B (en) | 2008-07-02 | 2008-07-02 | Vacuum freeze-drying technique of notoginseng flower |
Country Status (1)
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| CN (1) | CN101301320B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972392A (en) * | 2012-12-20 | 2013-03-20 | 李嘉 | Low-temperature vacuum drying preservation method for flowers |
| CN103979210B (en) * | 2014-05-23 | 2016-08-31 | 中国科学院亚热带农业生态研究所 | The long-term preservation method of a kind of plant sample and device |
| CN112076270A (en) * | 2019-07-08 | 2020-12-15 | 上海瀛洲西红花种植专业合作社 | Low-density freeze-dried saffron |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633886A (en) * | 2003-12-31 | 2005-07-06 | 王汝辉 | Active notoginseng and its preparation |
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2008
- 2008-07-02 CN CN2008100586188A patent/CN101301320B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1633886A (en) * | 2003-12-31 | 2005-07-06 | 王汝辉 | Active notoginseng and its preparation |
Non-Patent Citations (1)
| Title |
|---|
| 江水泉.真空冷冻干燥技术在三七加工中的应用.粮食与食品工业.2003,(1),36-38. * |
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| CN101301320A (en) | 2008-11-12 |
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