CN112618429A - Dried flower of strong aromatic fresh flower and preparation method thereof - Google Patents
Dried flower of strong aromatic fresh flower and preparation method thereof Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9794—Liliopsida [monocotyledons]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
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Abstract
The invention relates to the field of dried flower preparation, and discloses dried flowers of strong-flavor fresh flowers and a preparation method thereof. The preparation method comprises the following steps: immersing the strong aromatic fresh flowers in water, and boiling for 5-15 minutes to obtain boiled fresh flowers; then immersing the fresh flowers in a potassium permanganate aqueous solution with the mass concentration of 0.05-0.15% for boiling for 5-15 minutes to obtain sterilized fresh flowers; soaking the sterilized fresh flowers in 10-20% sodium lauryl ether sulfate aqueous solution for 12-36 hours to obtain surface-treated fresh flowers; and drying the surface-treated fresh flowers to obtain dry flowers. The dried flower prepared by the method has no odor, keeps the original color and the quality guarantee period, and can be applied to the field of daily chemicals.
Description
Technical Field
The invention relates to the field of dried flower preparation, in particular to dried flower of strong aromatic fresh flower and a preparation method thereof.
Background
The dried flower is prepared by air drying, baking at high temperature or dehydrating fresh flower with desiccant, and can be used as decoration or added into daily chemical product to enhance skin care effect or product appearance and attract consumer. However, there are some strong-flavor fresh flowers in nature, such as crystal grass, lovely grass, lavender, and mugwort leaf, which tend to have strong flavor. When the strong-flavor fresh flowers are applied to daily chemicals, the strong flavor of the fresh flowers can react with other components in the daily chemicals to generate stronger, more irritating and less pleasant flavor, so that the blending of the flavor of the daily chemicals is influenced, and the daily chemicals without flavor cannot be blended. Also, people may not adapt to the strong smell of flowers and even generate sensitivity, so that the use of strong-flavor flowers is greatly limited.
However, the odor of highly flavored flowers is difficult to eliminate. The research and report about eliminating the odor of the strong aromatic fresh flowers through emulsification are fresh at home and abroad. The prior art can not eliminate the unpleasant smell of the strong aromatic flowers at all, and has other defects. For example, the rate of drying flowers is too slow, some flowers require two to three days for drying, some require eight to ten days for drying, and the flowers are easy to rot and deform. Desiccants dry fresh flowers faster, but also require one to three days. In contrast, the high temperature roasting dries flowers most quickly, but easily causes the flowers to become too brittle, easily cracks, and changes some flower colors. Moreover, the dried flowers are easy to absorb moisture and breed bacteria, and the quality guarantee time is short. Therefore, preservative liquid medicine is added to prolong the quality guarantee time and cover the thick smell of flowers, but the preservative liquid medicine is toxic, can irritate and damage the skin after dried flowers enter daily chemicals, has large smell, cannot remove the thick smell of the flowers and can generate strong irritating smell.
Therefore, a safe and non-toxic means for eliminating the unpleasant smell of the strong-flavor fresh flowers, keeping the original color and prolonging the shelf life is not available.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and the primary aim is to provide the preparation method of the strong aromatic dried flower, which can prepare the dried flower which has no smell, keeps the original flower color and has long quality guarantee period.
The invention also aims to provide the dried flower prepared by the method.
The purpose of the invention is realized by the following technical scheme:
a preparation method of dried flowers of strong aromatic fresh flowers comprises the following steps:
(1) and (3) sterilization treatment: immersing the strong aromatic fresh flowers in water, and boiling for 5-15 minutes to obtain boiled fresh flowers; immersing the boiled fresh flowers in a potassium permanganate aqueous solution with the mass concentration of 0.05-0.15%, and boiling for 5-15 minutes to obtain sterilized fresh flowers;
(2) and (4) surface activation treatment: soaking the sterilized fresh flowers in a sodium laureth sulfate aqueous solution with the mass concentration of 10-20% for 12-36 hours to obtain surface-treated fresh flowers;
(3) and (3) drying treatment: and drying the surface-treated fresh flowers to obtain dry flowers.
Further, before the operation of immersing the Luzhou-flavor fresh flowers in water, the Luzhou-flavor fresh flowers are cut to a required size.
Preferably, the water is deionized water, and the boiling time of the deionized water is 8-12 minutes. More preferably, the boiling time with deionized water is 10 minutes.
Preferably, the mass concentration of the potassium permanganate aqueous solution is 0.08-0.12%, and the boiling time is 8-12 minutes. More preferably, the concentration by mass of the aqueous potassium permanganate solution is 1.0%, and the boiling time therewith is 10 minutes.
Preferably, the mass concentration of the sodium laureth sulfate aqueous solution is 13-17%, and the soaking time is 20-28 hours. More preferably, the mass concentration of the sodium laureth sulfate aqueous solution is 15%, and the soaking time with the sodium laureth sulfate aqueous solution is 24 hours.
Further, in order to avoid the problems that the active ingredients in the prepared dried flowers are inactivated, the dried flowers are easy to deform due to rapid dehydration, and the dried flowers are easy to break due to excessive drying, the drying operation specifically comprises the following steps: and (3) drying the surface-treated fresh flowers in an oven at the temperature of between 38 and 58 ℃. The adopted temperature condition is very mild, the inactivation of active ingredients in the prepared dried flowers can be avoided, the original flower shape can be kept, and the cracking phenomenon of the dried flowers can be avoided. Preferably, the drying temperature is 45-50 ℃. More preferably, the temperature of the drying is 48 ℃.
Or, in order to shorten the drying time, the drying operation specifically includes: providing a container with an upper cavity and a lower cavity which are communicated, placing the surface-treated fresh flowers in the upper cavity, placing dry ice in the lower cavity, evaporating the dry ice to carbon dioxide to freeze the surface-treated fresh flowers, placing a drying agent in the upper cavity after the dry ice is completely evaporated, and keeping sealing until the container is heated to room temperature to obtain unfrozen fresh flowers; then taking out the unfrozen fresh flowers and placing the fresh flowers in an oven to be dried at the temperature of between 38 and 58 ℃. Preferably, the volume ratio of the dry ice to the strong aromatic fresh flowers is (1-3): 1. more preferably, the volume ratio of the dry ice to the strong aromatic flowers is 2: 1. preferably, the drying temperature is 45-50 ℃. More preferably, the temperature of the drying is 48 ℃. Furthermore, the dried flowers can be stored in another sealed container, and the desiccant can be used as a storage medium to block the contact of water vapor, bacteria and the like with the dried flowers, so that the shelf life of the dried flowers in a room-temperature environment can be prolonged.
Furthermore, the operation of placing the desiccant into the upper chamber specifically includes: and pouring the drying agent into the bottom of the upper cavity, pouring the drying agent around the surface-treated fresh flowers, and slowly spraying the drying agent into the petals of the surface-treated fresh flowers so as to completely wrap the surface-treated fresh flowers with the drying agent.
Furthermore, the drier includes a plurality of dry particles, each dry particle all includes active carbon inner core, silver thick liquid coating and silica gel shell, the coating of silver thick liquid is in the surface of active carbon inner core, the parcel of silica gel shell is in the surface of silver thick liquid coating, a plurality of micropores have been seted up to the silica gel shell. The preparation method of the drying agent comprises the following steps: sequentially crushing and granulating the active carbon raw material to obtain the active carbon inner core; coating a silver paste raw material on the outer surface of the activated carbon inner core to form the silver paste coating on the outer surface of the activated carbon inner core; adopt technologies such as moulding plastics or extruding to be in the outer surface parcel water absorption silica gel raw materials of silver thick liquid coating, with the surface of silver thick liquid coating forms the silica gel shell adopts technologies such as laser beam drilling or chemical etching to be in a plurality of the micropore is seted up to the silica gel shell.
The fragrant fresh flower is plant with strong odor such as herba Gei, herba Saussureae Involueratae, Lavender, folium Artemisiae Argyi, flos Micheliae Albae, flos Zingiberis recens, flos Paulowniae, flos Sophorae Immaturus, flos Caryophylli, flos Pyri, evening primrose, folium Et cacumen Murrayae, flos Aglaiae odorati, flos Rosae chinensis, Bulbus Lilii, herba Violae, fructus Gardeniae, and flos Micheliae Chamaenae Incanae.
A dried flower of a fragrant fresh flower is prepared by any one of the preparation methods of the dried flowers of the fragrant fresh flower.
The method can prepare the dried flower which has no smell, keeps the original flower color and has long quality guarantee period, and can be applied to the fields of daily chemicals and the like.
Compared with the prior art, the invention has at least the following advantages:
the reagents adopted by the preparation method of the dried flower are all safe and non-toxic and low-cost reagents, odor and toxic byproducts cannot be generated in water or fresh flowers, and the sodium laureth sulfate aqueous solution is a surfactant, has the characteristics of washing, emulsification, permeation, solubilization and the like, and can wash away the reagents possibly remaining on the surfaces of the strong-flavor fresh flowers, so that the dried flowers are safe and non-irritant to human skins when being applied to daily chemicals. Particularly, the aqueous solution of potassium permanganate has extremely low mass concentration, and can not stain flowers. Even if slight dyeing phenomenon exists, the surface activity of the sodium laureth sulfate aqueous solution can be completely removed, so that the dried flowers can keep the original flower colors to the maximum extent.
The preparation method of the dried flower firstly boils the flower with water to loosen the cell cavity and the lattice tissue of the strong aromatic fresh flower and increase the cell permeability; the hydrolysis of potassium permanganate is promoted at high temperature, and hydrolysis ions move at high speed and enter cells of the strong aromatic fresh flowers to oxidize and adsorb organic matters causing odor and oxygen, and kill microorganisms in the fresh flowers, thereby playing the roles of sterilization, disinfection, adsorption and deodorization; and then, through the emulsification, penetration, solubilization and other actions of the sodium laureth sulfate aqueous solution, odor molecules of the strong aromatic flowers are brought into the aqueous solution, so that unpleasant odor of the strong aromatic flowers can be effectively eliminated, and the original flower color can be kept. In addition, the prepared dried flowers can be kept for a long shelf life in a room temperature environment through the antibacterial and bactericidal effects of the potassium permanganate aqueous solution and the sodium laureth sulfate aqueous solution in combination with the drying operation, and the shelf life can be kept for a long time even if the dried flowers are applied to daily chemicals and are contacted with reagents such as water and the like.
The preparation method of the dried flower adopts a special surfactant, namely sodium laureth sulfate, so that the treatment effect of the fresh flower with light smell after sterilization treatment of water boiling and potassium permanganate aqueous solution boiling is excellent, the unpleasant smell of the fresh flower with strong fragrance can be effectively eliminated on the premise of keeping the original flower color, and the quality guarantee period of the dried flower can be prolonged. In thousands of sets of surface activity comparison tests, the sodium laureth sulfate and the potassium permanganate cooperate to achieve the best treatment effect on the strong-flavor fresh flowers, and the sodium laureth sulfate and the potassium permanganate cannot replace the strong-flavor fresh flowers in efficacy.
The preparation method of the dried flower can be used for freezing the strong aromatic fresh flower by evaporating the dry ice into carbon dioxide, the cell cavity and the lattice tissue of the strong aromatic fresh flower become soft in the process of evaporating the dry ice, odor molecules are scattered along with a large amount of water molecules of the fresh flower by overflow, and the scattered water molecules and odor molecules are adsorbed by the drying agent, so that residual peculiar smell of the strong aromatic fresh flower can be further removed, the water content of the strong aromatic fresh flower can be greatly reduced, the required drying degree can be quickly reached even under the mild condition of 38-58 ℃, and the drying time of the strong aromatic fresh flower can be greatly shortened. In addition, the drying agent can be dried, regenerated and reused, and the cost is saved.
According to the preparation method of the dry flower, a special drying agent is selected and consists of a silver paste coating, a silica gel shell and an active carbon inner core, the silica gel shell can change color after the drying agent absorbs moisture and loses efficacy, the silica gel shell is flexible in texture, and the dry flower is not easy to damage; the silver paste coating is contacted with the wet strong aromatic fresh flowers, and silver ions can inhibit or kill microorganisms on the surfaces of the strong aromatic fresh flowers and in the container, so that the strong aromatic fresh flowers are prevented from going bad and rotten; the porous structure of the active carbon can effectively adsorb water molecules and odor molecules in the container, so that the peculiar smell of the strong aromatic fresh flowers can be effectively removed. In addition, the drying agent is used as a storage medium of the dried flowers, so that the contact of water vapor, bacteria and the like with the dried flowers can be blocked, and the shelf life of the dried flowers in a room-temperature environment can be prolonged.
Detailed Description
The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 5 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing fresh flowers in 0.05% potassium permanganate aqueous solution for boiling, boiling for 15 minutes, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking sterilized fresh flowers in 10% sodium laureth sulfate aqueous solution, taking sterilized fresh flowers as a reference when the liquid level is completely submerged, taking out the fresh flowers after 36 hours, and washing the fresh flowers with deionized water for three times to obtain the surface-treated fresh flowers.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 38 ℃ for 6 hours to obtain the dried flowers.
Example 2
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 15 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing fresh flowers in 0.15 mass percent potassium permanganate aqueous solution, boiling for 5 minutes, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 20% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 12 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 58 ℃ for 4 hours to obtain the dried flowers.
Example 3
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 8 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing the fresh flowers in 0.08% by mass potassium permanganate aqueous solution, boiling for 12 minutes, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking sterilized fresh flowers in 13% sodium laureth sulfate aqueous solution, taking the sterilized fresh flowers as a reference when the liquid level is completely submerged, and taking out the fresh flowers and washing the fresh flowers with deionized water for three times after 28 hours to obtain the surface-treated fresh flowers.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 45 ℃ for 5.5 hours to obtain the dried flowers.
Example 4
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 12 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing fresh flowers in 0.12% potassium permanganate aqueous solution for boiling, boiling for 8 minutes, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 17% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 20 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 50 ℃ for 4.5 hours to obtain the dried flowers.
Example 5
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing the fresh flowers in 0.10 mass percent aqueous solution of potassium permanganate into water, boiling the fresh flowers for 10 minutes, taking out the fresh flowers and drying the fresh flowers by filtration; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 48 ℃ for 5 hours to obtain the dried flowers.
Example 6: drying treatment
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing the fresh flowers in 0.10 mass percent aqueous solution of potassium permanganate into water, boiling the fresh flowers for 10 minutes, taking out the fresh flowers and drying the fresh flowers by filtration; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then providing a container with an upper cavity and a lower cavity which are communicated with each other, placing the flower subjected to surface activity treatment in the upper cavity, and placing dry ice in the lower cavity, wherein the volume ratio of the dry ice to the flower subjected to surface activity treatment is 1: 1, evaporating dry ice to carbon dioxide to freeze surface-treated fresh flowers, pouring a drying agent into the bottom of an upper cavity after the dry ice is completely evaporated, pouring the drying agent into the periphery of the surface-treated fresh flowers, slowly spraying the drying agent into petals of the surface-treated fresh flowers to completely wrap the surface-treated fresh flowers with the drying agent, and keeping the container sealed until the temperature of the container is raised to room temperature to obtain unfrozen fresh flowers; taking out the unfrozen fresh flowers, and placing the fresh flowers in an oven to be dried for 35 minutes at the temperature of 48 ℃ to obtain the dried flowers. Wherein, the drier of embodiment 6 includes a plurality of dry granules, and each dry granule all includes active carbon inner core, silver thick liquid coating and silica gel shell, and the surface at the active carbon inner core is coated to the silver thick liquid coating, and the silica gel shell parcel is at the surface of silver thick liquid coating, and a plurality of micropores have been seted up to the silica gel shell.
Comparative example 1: without sterilization treatment
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 48 ℃ for 5 hours to obtain the dried flowers.
Comparative example 2: cocoamidopropyl betaine
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing the fresh flowers in 0.10 mass percent aqueous solution of potassium permanganate into water, boiling the fresh flowers for 10 minutes, taking out the fresh flowers and drying the fresh flowers by filtration; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% cocamidopropyl betaine aqueous solution, taking the sterilized fresh flower without the liquid surface as a reference, and taking out and washing the fresh flower with deionized water for three times after 24 hours to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 48 ℃ for 5 hours to obtain the dried flowers.
Comparative example 3: disodium Cocoacyl sulfosuccinate
And (3) sterilization treatment: and cutting the lover grass branches to a required size, immersing the cut lover grass branches with deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing the fresh flowers in 0.10 mass percent aqueous solution of potassium permanganate into water, boiling the fresh flowers for 10 minutes, taking out the fresh flowers and drying the fresh flowers by filtration; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% aqueous solution of disodium cocoyl sulfosuccinate, taking the sterilized fresh flower without the liquid surface as a reference, taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 48 ℃ for 5 hours to obtain the dried flowers.
And (3) performance testing: the dried flowers obtained in examples 1 to 6 and comparative examples 1 to 3 were subjected to tests for odor, flower color and quality change. Among them, the test results of the dried flowers obtained in example 1, example 5, example 6, comparative example 1, comparative example 2 and comparative example 3 are shown in table 1. In addition, the test results of the dried flowers obtained in examples 2 to 4 are similar to the test results of the dried flowers obtained in example 1, and are not repeated.
TABLE 1 test results for dried flowers
As can be seen from the data in Table 1, the dried flower preparation method provided by the invention can prepare the dried flower which is odorless and keeps the original flower color (no fading), the shelf life of the obtained dried flower in a room temperature environment can reach 90 days, and the shelf life of the dried flower in contact with reagents such as water and the like can also reach 90 days when the dried flower is applied to daily chemicals. Wherein the shelf life of the dried flower obtained in example 5 can reach 150 days. The shelf life of the dried flowers obtained in example 6 can reach 180 days; in order to dry flowers to a desired degree of dryness, the total drying time (i.e., the total drying time) of example 5 was 5 hours, and the total drying time (i.e., the total drying time) of example 6 was 60 minutes, which can greatly shorten the drying time of the strong-flavor fresh flowers. The quality of the dried flowers obtained in comparative examples 1 to 3 was not good.
Example 7
And (3) sterilization treatment: cutting the boughs of the bou. Immersing the boughs of the float grass in a potassium permanganate aqueous solution with the mass concentration of 0.05 percent, boiling for 5 minutes, taking out and filtering to be dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking sterilized fresh flowers in 10% sodium laureth sulfate aqueous solution, taking the sterilized fresh flowers as a reference when the liquid level is completely submerged, and taking out the fresh flowers and washing the fresh flowers with deionized water for three times after 12 hours to obtain the surface-treated fresh flowers.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 58 ℃ for 2 hours to obtain the dried flowers.
Example 8
And (3) sterilization treatment: cutting the lavender flower branches to a required size, immersing the cut lavender flower branches in deionized water, boiling for 5 minutes, taking out, and draining to obtain water-boiled fresh flowers. Immersing fresh flowers in 0.15 mass percent potassium permanganate aqueous solution, boiling for 15 minutes, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 20% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out and washing the fresh flower with deionized water for three times after 36 hours to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 38 ℃ for 7 hours to obtain the dried flowers.
Example 9
And (3) sterilization treatment: cutting the folium artemisiae argyi branches to the required size, immersing the cut folium artemisiae argyi branches in deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled fresh flowers. Immersing fresh flowers in 0.10% potassium permanganate aqueous solution, boiling for 10 min, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then, drying the surface-treated fresh flowers in an oven at the temperature of 48 ℃ for 4 hours to obtain the dried flowers.
Example 10
And (3) sterilization treatment: cutting the evening primrose branches to a required size, immersing the cut evening primrose branches in deionized water, boiling for 10 minutes, taking out, and draining to obtain the boiled flowers. Immersing fresh flowers in 0.10% potassium permanganate aqueous solution, boiling for 10 min, taking out and filtering to dry; washing with deionized water for three times, and filtering to obtain sterilized fresh flower.
And (4) surface activation treatment: soaking the sterilized fresh flower in 15% sodium laureth sulfate aqueous solution, taking the sterilized fresh flower as a reference when the liquid surface is completely submerged, and taking out the fresh flower after 24 hours, and washing the fresh flower with deionized water for three times to obtain the surface-treated fresh flower.
And (3) drying treatment: and then providing a container with an upper cavity and a lower cavity which are communicated with each other, placing the flower subjected to surface activity treatment in the upper cavity, and placing dry ice in the lower cavity, wherein the volume ratio of the dry ice to the flower subjected to surface activity treatment is 3: 1, evaporating dry ice to carbon dioxide to freeze surface-treated fresh flowers, pouring a drying agent into the bottom of an upper cavity after the dry ice is completely evaporated, pouring the drying agent into the periphery of the surface-treated fresh flowers, slowly spraying the drying agent into petals of the surface-treated fresh flowers to completely wrap the surface-treated fresh flowers with the drying agent, and keeping the container sealed until the temperature of the container is raised to room temperature to obtain unfrozen fresh flowers; taking out the unfrozen fresh flowers, and placing the fresh flowers in an oven to be dried for 35 minutes at the temperature of 48 ℃ to obtain the dried flowers. (wherein, the desiccant of the embodiment 10 is the same as the desiccant of the embodiment 6, and the description thereof is omitted.)
And (3) performance testing: the dried flowers obtained in examples 7 to 10 were subjected to tests for odor, flower color and texture. The test results of the dried flowers obtained in examples 7 and 8 are similar to the test results of the dried flowers obtained in example 1, the test results of the dried flowers obtained in example 9 are similar to the test results of the dried flowers obtained in example 5, and the test results of the dried flowers obtained in example 10 are similar to the test results of the dried flowers obtained in example 6, and are not repeated. Therefore, the preparation method of the dry flowers is also suitable for the strong-flavor fresh flowers such as the gypsophila paniculata, the jewel grass, the dendrobium flowers and the evening primrose except for the lovers' grasses.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The preparation method of the dried strong aromatic fresh flower is characterized by comprising the following steps:
immersing the strong aromatic fresh flowers in water, and boiling for 5-15 minutes to obtain boiled fresh flowers; immersing the boiled fresh flowers in a potassium permanganate aqueous solution with the mass concentration of 0.05-0.15%, and boiling for 5-15 minutes to obtain sterilized fresh flowers;
soaking the sterilized fresh flowers in a sodium laureth sulfate aqueous solution with the mass concentration of 10-20% for 12-36 hours to obtain surface-treated fresh flowers;
and drying the surface-treated fresh flowers to obtain dry flowers.
2. The method of claim 1, wherein the aromatic flower is further cut to a desired size prior to the step of immersing the aromatic flower in water.
3. The method for preparing dried Luzhou-flavor fresh flowers according to claim 1, wherein the water is deionized water, and the boiling time is 8 to 12 minutes.
4. The method for preparing the dry flowers of the Luzhou-flavor fresh flowers according to claim 1, wherein the mass concentration of the potassium permanganate aqueous solution is 0.08-0.12%, and the boiling time is 8-12 minutes.
5. The method for preparing the dry flowers of the Luzhou-flavor fresh flowers according to claim 1, wherein the mass concentration of the sodium laureth sulfate aqueous solution is 13-17%, and the soaking time is 20-28 hours.
6. The method for preparing the dried Luzhou-flavor fresh flower according to claim 1, wherein the drying operation specifically comprises: and (3) drying the surface-treated fresh flowers in an oven at the temperature of between 38 and 58 ℃.
7. The method for preparing dried Luzhou-flavor fresh flowers according to claim 6, wherein the drying temperature is 45 ℃ to 50 ℃.
8. The method for preparing the dried Luzhou-flavor fresh flower according to claim 1, wherein the drying operation specifically comprises: providing a container with an upper cavity and a lower cavity which are communicated, placing the surface-treated fresh flowers in the upper cavity, placing dry ice in the lower cavity, evaporating the dry ice to carbon dioxide to freeze the surface-treated fresh flowers, placing a drying agent in the upper cavity after the dry ice is evaporated, and keeping the upper cavity sealed until the container is heated to room temperature to obtain unfrozen fresh flowers; then taking out the unfrozen fresh flowers and placing the fresh flowers in an oven to be dried at the temperature of between 38 and 58 ℃.
9. The method for preparing dried Luzhou-flavor fresh flowers according to claim 8, wherein the operation of placing a desiccant into the upper chamber specifically comprises: and pouring the drying agent into the bottom of the upper cavity, pouring the drying agent around the surface-treated fresh flowers, and then sprinkling the drying agent into the flower petals of the surface-treated fresh flowers so as to wrap the surface-treated fresh flowers with the drying agent.
10. A dry Luzhou-flavor fresh flower characterized by being produced by the method for producing a dry Luzhou-flavor fresh flower according to any one of claims 1 to 9.
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Citations (5)
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|---|---|---|---|---|
| JPH0558801A (en) * | 1991-08-31 | 1993-03-09 | Toshiyuki Sugino | Surface treating method of dried pressed flower and surface treating liquid therefor |
| US5834074A (en) * | 1996-11-20 | 1998-11-10 | Mikkola; Frederick P. | Preservation of dried flowers |
| CN104521947A (en) * | 2014-11-24 | 2015-04-22 | 仲恺农业工程学院 | Manufacturing method of three-dimensional kapok dry flower |
| CN107027744A (en) * | 2017-04-11 | 2017-08-11 | 河南科技学院 | A kind of plant colouring agent, preparation method and application |
| CN107912427A (en) * | 2017-12-07 | 2018-04-17 | 广州栋方生物科技股份有限公司 | A kind of flower used for cosmetic and its color-retention method |
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2020
- 2020-12-14 CN CN202011467118.7A patent/CN112618429B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0558801A (en) * | 1991-08-31 | 1993-03-09 | Toshiyuki Sugino | Surface treating method of dried pressed flower and surface treating liquid therefor |
| US5834074A (en) * | 1996-11-20 | 1998-11-10 | Mikkola; Frederick P. | Preservation of dried flowers |
| CN104521947A (en) * | 2014-11-24 | 2015-04-22 | 仲恺农业工程学院 | Manufacturing method of three-dimensional kapok dry flower |
| CN107027744A (en) * | 2017-04-11 | 2017-08-11 | 河南科技学院 | A kind of plant colouring agent, preparation method and application |
| CN107912427A (en) * | 2017-12-07 | 2018-04-17 | 广州栋方生物科技股份有限公司 | A kind of flower used for cosmetic and its color-retention method |
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