CN103461016B - Preparation method of vacuum freeze drying roses - Google Patents
Preparation method of vacuum freeze drying roses Download PDFInfo
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- CN103461016B CN103461016B CN201310438607.3A CN201310438607A CN103461016B CN 103461016 B CN103461016 B CN 103461016B CN 201310438607 A CN201310438607 A CN 201310438607A CN 103461016 B CN103461016 B CN 103461016B
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Abstract
The invention belongs to the field of health-care food processing and particularly relates to a technical method of vacuum freeze drying roses. A reparation method of the vacuum freeze drying roses is mainly characterized by comprising the following steps of a, picking roses; c, performing vacuum freeze drying on the roses, i.e. vacuumizing until the pressure is 15 to 25kPa, meanwhile, starting refrigeration, reducing the cold trap temperature of a vacuum freeze drier to 40 DEG C below zero to 65 DEG C below zero within 2 to 4 hours, keeping for 0.5 to 2 hours, and raising the temperature of the roses to 0 to 15 DEG C within 9 to 30 hours to dry the roses. The original bright-colored color of the roses is kept, and the nutritional ingredients and the health-care effect of the roses are kept to the greatest degree. The method has the advantages that the damage to the effective components for bioactivity of the dried roses is very low, the appearance of the dried roses is well kept, the nutritional ingredients and the active substances of the roses are kept, the moisture content is low, sugar content is high, and the roses are reddish and bright in color and luster, crystal clear and convenient to convey and store for a long time.
Description
Technical field
The invention belongs to health food manufacture field, be specifically related to the process of vacuum cooling drying rose.
Background technology
Rose is the perennial shrub plant of the rose family, and be used as medicine with bud, medicinal history is long, is one of China's rare medicinal herbs.History tree is all on the books, begin to be loaded in Yao Kecheng " food book on Chinese herbal medicine), day: " gas of evils that exorcise evil spirits, food fragrant sweet and refreshing, makes us refreshing and feel well for the main sharp lung spleen of rose, beneficial liver and gall." " florilegium " year: " rose flower of hovering, fills with raw, spire, how sharp, class rose, and stem is short; Flower also class rose ... using of this flower is the widest, because it is fragrant beautiful, or makes fan pendants sachet; Or mash with dark plum with frosting, rose paste by name." supplementary Amplifications of the Compendium of Materia Medica carries: " rose is invigorated blood circulation, fire falls in promoting circulation of blood, invigorating the spleen, menstruation regulating of regulating the flow of vital energy, nourishing beauty treatment." < book on Chinese herbal medicine newer > carry: " enter liver, spleen two warp, the strongly fragrant gas of liver and gall of relaxing, fire falls in invigorating the spleen.Control cold cancer in abdomen, gastral cavilty is long-pending cold, holds concurrently and can break blood." (herbal just > carries: " and rose, fragrance is the denseest, turbid clearly and not, and and violent, soft liver is amusing, gas and blood ... the all product of fragrance. there is no equal "." Quanzhou book on Chinese herbal medicine " is thought in addition, diseases such as " tuberculosis cough phlegm blood, haematemesis, spitting of bloods " that rose can be treated.Rose sweet and slightly bitter taste, warm in nature, gas fragrance, is amusing in kind energy soothing liver-qi stagnation, tune, can be used for the diseases such as liver-stomach disharmony, distending pain in the chest and hypochondrium, n and V, anorexia, and control women's stasis, blockage of menstruation, and damage extravasated blood is had a pain, and has effect that row of invigorating blood circulation becomes silted up, long-term drinking can also skin maintenance, lowering blood-fat and reducing weight, can prevent aged coronary heart disease, arteriosclerosis, is excellent one of health beverages of promoting longevity.
Rose dried flower processing on domestic market adopts original heated baking technique to obtain, and because heating-up temperature is higher, the color and luster of bud is dimmed, and in order to make lovely luster, minority processing stand adopts sulphur to smoke.In addition, because heating-up temperature is high, the fragrance of fresh rose flower almost total loss totally, after dried flower is soaked without any rose fragrance audible.Adopt the rose dried flower product of vacuum freeze drying technology explained hereafter, maintain the fragrance of a flower of original fresh rose flower, color and luster is with consistent, bright-coloured beautiful when just plucking, and soak in water, rose good smell is a kind of expensive goods of beauty treatment of cultivating one's moral character.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the preparation method of a kind of vacuum cooling drying rose is provided.Rose is quick freezing at low temperatures, makes its temperature reach below eutectic point, then make in certain vacuum environment the hydrone freezed directly distil for vapourous water overflow and reach drying purpose.
For achieving the above object, the technical scheme that the present invention takes is: the preparation method of a kind of vacuum cooling drying rose, and its main feature is that step includes:
A. rose is plucked: use the new fresh-rose plucked within 24 hours, preservation of drying in the shade, humidity is that envionmental humidity is less than 50%;
C. vacuum cooling drying: rose is put into vacuum freeze drier and by 10 ~ 20KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 15kPa ~ 25kPa, start refrigeration simultaneously, in 2 ~ 4 hours, the condenser temperature of vacuum freeze drier is down to-40 DEG C ~-65 DEG C, 0.5 ~ 2 hour retention time; Slowly heated to product by the heating system under dividing plate, the heat that delivery article is required in sublimation process, was warming up to 0 ~ 15 DEG C by rose, makes rose drying in 9 ~ 30 hours.Dried rose keeps original chromatic colour, farthest preserves its nutrient component and health-care effect.
The preparation method of described vacuum cooling drying rose, its step also includes:
Hour b.24 cannot be used up within rose load in food pack, put into the preservation of-18 ~-20 DEG C, freezer.
The preparation method of described vacuum cooling drying rose, its step also includes:
D. weigh, pack: the Packaging Bottle dried rose being placed in 5 liters ~ 10 liters, inflated with nitrogen stores.Envionmental humidity is less than 50%, and room temperature less than 25 DEG C, keeps in Dark Place; Weighing is distributed in packaging bag, and the hermetic seal of packaging bag vacuum nitrogen filling is packed, as marketing packing by vacuum nitrogen filling packing machine;
E. check, put in storage: Hygienic Index inspection, moisture measurement and functional components test are done in product sampling, and qualified products warehouse-in stores.
Beneficial effect of the present invention: dried rose biologically active active ingredient is destroyed minimum, and profile is intact, and maintain nutrient component and the active substance of rose, moisture content is low, and sugar content is high.Color and luster is ruddy, glittering and translucent, is convenient to transport and long storage periods.
Meet hygienic requirements, keep biologically active, color and local flavor and fragrance.Reduce the loss of volatility and heat-sensitive substance, the original character of maintenance material that can be best.Volume and shape invariance after dry, rehydration is good.Not oxidizable, preserve article better, extend storage life.
Accompanying drawing explanation
Fig. 1 vacuum cooling drying rose of the present invention;
Fig. 2 is liquid chromatogram of the present invention.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1: the preparation method of a kind of vacuum cooling drying rose, its main feature is that step includes:
A. rose is plucked: use the new fresh-rose plucked within 24 hours, preservation of drying in the shade, humidity is that envionmental humidity is less than 50%;
C. vacuum cooling drying: rose is put into vacuum freeze drier and by 10KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 15kPa, start refrigeration simultaneously, in 2 hours, the condenser temperature of vacuum freeze drier is down to-40 DEG C, 2 hours retention times; Slowly heated to product by the heating system under dividing plate, the heat that delivery article is required in sublimation process, was warming up to 15 DEG C by rose, makes rose drying in 30 hours.Dried rose keeps original chromatic colour, farthest preserves its nutrient component and health-care effect.
Embodiment 2: the preparation method of a kind of vacuum cooling drying rose, its main feature is that step includes:
A. rose is plucked: use the new fresh-rose plucked within 24 hours, preservation of drying in the shade, humidity is that envionmental humidity is less than 50%;
C. vacuum cooling drying: rose is put into vacuum freeze drier and by 15KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 20kPa, start refrigeration simultaneously, in 3 hours, the condenser temperature of vacuum freeze drier is down to-50 DEG C, 1 hour retention time; Slowly heated to product by the heating system under dividing plate, the heat that delivery article is required in sublimation process, was warming up to 10 DEG C by rose, makes rose drying in 20 hours.Dried rose keeps original chromatic colour, farthest preserves its nutrient component and health-care effect.
Embodiment 3: the preparation method of a kind of vacuum cooling drying rose, its main feature is that step includes:
A. rose is plucked: use the new fresh-rose plucked within 24 hours, preservation of drying in the shade, humidity is that envionmental humidity is less than 50%;
C. vacuum cooling drying: rose is put into vacuum freeze drier and by 20KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 25kPa, start refrigeration simultaneously, in 4 hours, the condenser temperature of vacuum freeze drier is down to-65 DEG C, 0.5 hour retention time; Slowly heated to product by the heating system under dividing plate, the heat that delivery article is required in sublimation process, was warming up to 0 DEG C by rose, makes rose drying in 9 hours.Dried rose keeps original chromatic colour, farthest preserves its nutrient component and health-care effect.
Embodiment 4: the preparation method of described vacuum cooling drying rose, its step also includes: b.24 hour cannot be used up within rose load in food pack, put into the preservation of-18 ~-20 DEG C, freezer;
During use, take out, need not thaw, directly use.
Step c vacuum cooling drying: rosebud is put into vacuum freeze drier and by 20KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 25kPa, start refrigeration simultaneously, in 2 ~ 4 hours, the condenser temperature of vacuum freeze drier is down to-40 DEG C ~-65 DEG C, 0.5 hour retention time; Slowly heated to product by the heating system under dividing plate, the heat that delivery article is required in sublimation process, was warming up to 0 DEG C by rosebud in 9 hours, made rose bud dry; Dried rosebud keeps original chromatic colour, farthest preserves its nutrient component and health-care effect.
Embodiment 5: the preparation method of described vacuum cooling drying rose, its step also includes: step a to step c is identical with embodiment 1 to embodiment 4.
D. weigh, pack: the Packaging Bottle dried rose being placed in 5 ~ 10 liters, inflated with nitrogen stores.Envionmental humidity is less than 50%, and room temperature less than 25 DEG C, keeps in Dark Place; Weighing is distributed in packaging bag, and the hermetic seal of packaging bag vacuum nitrogen filling is packed, as marketing packing by vacuum nitrogen filling packing machine;
E. check, put in storage: Hygienic Index inspection, moisture measurement and functional components test are done in product sampling, and qualified products warehouse-in stores.
Experimental example: the preparation method of described vacuum cooling drying rose, raw material choose Yongdeng County, Gansu Province brackish water rose.
The present inventor is through scientific research for many years, select advanced vacuum freeze drying technology, utilize the international advanced original-pack freeze-drier of the U.S., subzero 40 DEG C ~ 60 DEG C time, make new fresh-rose rapid dehydration dry, make a difficult problem for both effectiveness component damages in rose process obtain satisfactory solution.Product after processing maintains the bright and new beautiful color and luster of new fresh-rose and the Rose Essentielle of pleasant.See Fig. 1, the present invention removes the vacuum cooling drying rose of calyx.
Detection analysis through modern efficient liquid chromatograph shows, compared with the rose after freeze-drying dries the rose after processing with tradition, the content of its anthocyan is shown in Fig. 2.
As seen from Figure 2, the rose that in the rose that freeze-dry process is produced, the content of anthocyan is produced apparently higher than the common stoving process of the employing of commercial type, anti-oxidant, antidotal active component no matter in the color of jasmine tea soak or jasmine tea, freeze-drying rose all has good outward appearance and higher quality.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a preparation method for vacuum cooling drying rose, is characterized in that step includes:
A. rose is plucked: use the new fresh-rose plucked within 24 hours, preservation of drying in the shade, humidity is that envionmental humidity is less than 50%;
B. cannot be used up within 24 hours rose load in food pack, put into the preservation of-18 ~-20 DEG C, freezer;
C. vacuum cooling drying: rose is put into vacuum freeze drier and by 10 ~ 20KG/M2 stone, close hermatic door, open vacuum pump switch and freeze-dryer switch, be evacuated to 15 kPa ~ 25 kPa, start refrigeration simultaneously, in 2 ~ 4 hours, the condenser temperature of vacuum freeze drier is down to-40 DEG C ~-65 DEG C, 0.5 ~ 2 hour retention time; In 9 ~ 30 hours, rose is warming up to 0 ~ 15 DEG C, makes rose drying;
D. weigh, pack: the Packaging Bottle dried rose being placed in 5 liters ~ 10 liters, inflated with nitrogen stores: envionmental humidity is less than 50%, and room temperature less than 25 DEG C, keeps in Dark Place; Weighing is distributed in packaging bag, and the hermetic seal of packaging bag vacuum nitrogen filling is packed, as marketing packing by vacuum nitrogen filling packing machine;
E. check, put in storage: Hygienic Index inspection, moisture measurement and functional components test are done in product sampling, and qualified products warehouse-in stores.
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| CN201310438607.3A CN103461016B (en) | 2013-09-24 | 2013-09-24 | Preparation method of vacuum freeze drying roses |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104472475B (en) * | 2014-11-25 | 2016-08-17 | 贵州大自然科技股份有限公司 | A kind of vacuum refrigeration technique of palm petal |
| CN104924836A (en) * | 2015-06-11 | 2015-09-23 | 曹黎东 | Production method of dried flower craftwork |
| CN106923141A (en) * | 2017-05-04 | 2017-07-07 | 王亮 | A kind of preparation method for drying rose |
| CN107683930B (en) * | 2017-09-15 | 2020-10-02 | 仲恺农业工程学院 | Low-temperature freeze drying process for ginger flower and ginger flower tea prepared by low-temperature freeze drying process |
| CN107889916A (en) * | 2017-12-29 | 2018-04-10 | 无锡市鹅湖玫瑰园艺文化有限公司 | The preparation method of rose tea |
| CN109200175A (en) * | 2018-10-16 | 2019-01-15 | 南通御福源药业有限公司 | A kind of preparation method of vacuum freeze drying fritillaria thunbergii |
| CN112471304B (en) * | 2020-12-22 | 2023-03-03 | 海南中椹生物科技有限公司 | Scenting method of scented tea |
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