Color-protecting and shape-maintaining fresh flower preservative solution and application thereof
By using a color- and shape-preserving fresh flower preservation solution and a gradient freeze-drying process, the problem of complex and time-consuming production of preserved flowers has been solved, resulting in preserved flowers with complete shapes and lifelike colors, which are suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF CHINESE ACAD OF SCI
- Filing Date
- 2024-12-25
- Publication Date
- 2026-05-19
AI Technical Summary
Existing preserved flower production processes are complex and time-consuming, and the ingredients are complex and toxic, resulting in significant differences in color and shape from the original flowers, short preservation time, and unsatisfactory effects.
The flower preservation solution, which protects color and shape, contains shape protectants, pigment fixatives, antioxidants, and stabilizers. It maintains the shape and color of flowers through a gradient freeze-drying process, combining chemical and physical methods.
Preserved flowers with clear veins, complete shapes, and lifelike colors are produced. They have a long preservation time, feel like real flowers, and the production process is simplified, making them suitable for large-scale production.
Smart Images
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Figure BDA0005209793410000111
Abstract
Description
Technical Field
[0001] This invention belongs to the field of preserved flower production technology, specifically, it relates to a color-protecting and shape-preserving fresh flower preservation liquid and its application. Background Technology
[0002] As people's living standards improve and technology advances, constantly iterating and updating, people's pursuit of quality of life becomes increasingly strong. Flowers have become an indispensable item to embellish people's daily lives; however, the shelf life of flowers is limited, and factors such as temperature, soil, and water all affect their lifespan. In order to meet people's growing material and cultural needs and to preserve the beauty brought by flowers to the greatest extent possible, preserved flowers have emerged.
[0003] Preserved fresh flowers, also known as everlasting flowers or eco-flowers, are called "flowers that never fade" in some countries. They are dried flowers made from fresh-cut flowers such as roses, carnations, orchids, and hydrangeas, processed using high-tech methods through a series of complex processes including dehydration, decolorization, drying, and dyeing. Preserved flowers are almost indistinguishable from fresh flowers in color, shape, and feel. They retain the characteristics of fresh flowers, offer richer colors, have wider applications, and can be preserved for at least three years, making them ideal processed flower products for floral design, home decoration, and celebratory events.
[0004] The existing technology for making preserved flowers mainly includes the following methods: (1) Soaking method: Soak fresh flowers in a mixture of glycerin and water for several days to allow the flowers to absorb glycerin and water. After that, take the flowers out and dry them to allow them to fully absorb the liquid. However, the disadvantage of this method is that the liquid may seep out and the flowers may become moldy and dark in color in high-temperature environments. (2) Drying method: One of the common methods for making preserved flowers. Select fresh flowers and hang them in a well-ventilated and dry place, avoiding direct sunlight. Before the flowers are completely dry, some desiccant, such as silica gel or salt, can be added to accelerate the drying process. The dried flowers can be used to make bouquets, wreaths, etc. of preserved flowers. Its disadvantage is that it takes a long time and is suitable for plant materials with more fiber, lower water content, smaller flower size, and shorter stems. (3) Spraying method: This is a simple and quick method for making preserved flowers. Place fresh flowers in a well-ventilated place and spray the flowers evenly with spray paint. After the spray paint is completely dry, the flowers become preserved flowers. Preserved flowers made by this method can be made in different colors and effects according to personal preferences. However, the disadvantages of this method are that uneven spraying can easily lead to uneven dyeing and it takes a long time.
[0005] Existing technologies for producing preserved flowers often involve complex and time-consuming processes. Furthermore, the soaking solutions used to soak fresh flowers are typically complex in composition, difficult to prepare, and some components are even toxic. This results in preserved flowers with unsatisfactory effects, short shelf life, and a tendency to distort the original appearance. In addition, the preparation of preserved flowers involves multiple steps, and factors such as temperature, time, and chemical soaking agents affect the final product, causing most preserved flowers to differ significantly in color and shape from the original flowers, resembling more artificial flowers.
[0006] Chinese invention patent CN104210311A discloses a method for preparing three-dimensional dried flowers, specifically including the following steps: 1) placing fresh flowers to be processed in a dehydrating agent for dehydration treatment to obtain dehydrated flowers; 2) using a polypropylene plasticizer to perform vacuum impregnation treatment on the dehydrated flowers obtained in step 1) to obtain plasticized flowers; 3) subjecting the plasticized flowers obtained in step 2) to hardening treatment to obtain the final product. The three-dimensional dried flowers obtained by this method have bright colors and small color differences, but their shape and texture are inferior to real flowers. Summary of the Invention
[0007] In view of the above-mentioned shortcomings in the prior art, the first objective of the present invention is to provide a flower preservation liquid that protects color and shape. The flower preservation liquid has a simple composition and has excellent color and shape protection effects when used in the production of preserved flowers. The preserved flowers obtained have clear veins, complete shapes, realistic colors that are not easy to fade, feel like real flowers, and have a long preservation time.
[0008] In view of the above-mentioned shortcomings in the prior art, the second objective of the present invention is to provide an application of a color-protecting and shape-preserving flower preservation liquid in the preparation of preserved flower products. This application can not only produce lifelike preserved flowers, but also has a short production time and a simplified production process, which is conducive to promotion and large-scale production.
[0009] To achieve the above objectives, the solution adopted by the present invention is as follows:
[0010] A color-protecting and shape-preserving flower preservation solution, by weight, comprises: 1-2 parts of shape-protecting agent, 2-3 parts of pigment fixative, 0.8-1.2 parts of antioxidant, and 1-2 parts of stabilizer.
[0011] The above-mentioned color-protecting and shape-preserving fresh flower preservation solution is used in the preparation of preserved flower products.
[0012] The beneficial effects of the color-protecting and shape-preserving flower preservation solution provided by this invention and its application are as follows:
[0013] The flower preservation solution provided by this invention comprises a specific ratio of a shape-protecting agent, a pigment fixative, an antioxidant, and a stabilizer.
[0014] The main function of the shape-protecting agent is to maintain the shape and color of the preserved flowers, reducing deformation and fading during the drying process. Using the shape-protecting agent significantly reduces drying time and maintains the firmness, texture, and color of the petals. The main function of the pigment fixative is to maintain the vibrant color of the flowers and prevent fading during processing. By using the pigment fixative, preserved flowers can retain their original vibrant colors, ensuring they remain beautiful and attractive during long-term preservation and display. Antioxidants have color-protecting and antioxidant effects, preventing oxidation and deterioration of the flowers, inhibiting oxidation reactions, maintaining freshness and quality, and extending the shelf life of the flowers. Adding a stabilizer to this color-protecting and shape-preserving flower preservation solution achieves emulsification and dispersion, increasing the surface tension between the raw materials, thus obtaining a uniform and stable dispersion system, which facilitates the absorption of the shape-protecting agent, pigment fixative, and antioxidant.
[0015] This flower preservation solution has a simple composition. When the solution is used within the above-mentioned ratio range, it has excellent color and shape preservation effects, which can help preserved flowers maintain their bright color and longevity. The preserved flowers produced have clear veins, complete shapes, realistic colors that are not easy to fade, feel like real flowers, and have a long preservation time. The fading is not visible to the naked eye for 2-3 years. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.
[0017] The following is a detailed description of a color-protecting and shape-preserving flower preservation solution provided by an embodiment of the present invention and its application.
[0018] This embodiment provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1-2 parts of shape-protecting agent, 2-3 parts of pigment fixative, 0.8-1.2 parts of antioxidant, and 1-2 parts of stabilizer.
[0019] This color-protecting and shape-preserving flower preservation solution comprises propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4. While propylene glycol effectively softens flowers, its high density can lead to excessive adhesion between petals. In this application, the addition of a specific proportion of ethanol and n-butanol to propylene glycol significantly improves petal adhesion, resulting in better shape preservation.
[0020] This color-preserving and shape-maintaining flower preservation solution comprises a pigment fixative consisting of citric acid in a 2:1 mass ratio and a 35% magnesium chloride solution. For fresh flowers, water loss causes a decrease in the pH value within the cell sap, leading to changes in pigment structure and discoloration. The pigment fixative in this application is based on the principle of chemical color preservation. It targets the causes of petal discoloration during the drying process to increase the stability of pigments within the petals by altering the pH value within the flower's cell sap and inducing or entraining displacement and complexation reactions in pigment molecules.
[0021] In this embodiment, the pigment fixative is a magnesium chloride solution with added citric acid, which lowers the pH value of the citric acid solution. Simultaneously, magnesium chloride reacts with anthocyanins under acidic conditions to produce new chromophores. Based on the chemical property that anthocyanins readily form metal complexes with divalent metal ions, anthocyanins in fresh flowers can undergo a complexation reaction with magnesium chloride to form a complex.
[0022] In this embodiment, the antioxidant includes one of vitamin C solution, L-ascorbic acid, and sodium L-ascorbate. The stabilizer includes one of fatty acid diethanolamide and polyoxyethylene alkyl ether.
[0023] This embodiment also provides an application of a color-protecting and shape-preserving fresh flower preservation solution in the preparation of preserved flower products, including:
[0024] (1) Pick fresh flowers, wash and dry them, cut off the stems and leaves, spread silica powder with a particle size of 0.5-1mm evenly in a sealed container to a thickness of 2-3cm, put in the flowers and let them stand for 24-48h to obtain pre-treated flowers.
[0025] (2) Soak the pretreated flowers in a flower preservation solution at a temperature of 22-25℃ for 30-60 minutes, and cool them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10℃ for 30 minutes, then freezing at -18℃ for 30 minutes, and then freezing at -32℃ for 30 minutes.
[0026] (3) The preserved flowers are obtained by drying. The drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, then heating to 15°C and holding for 60 minutes.
[0027] The application of this color-protecting and shape-preserving flower preservation solution in the preparation of preserved flower products includes first using silica gel to partially dehydrate the flowers physically, then immersing the flowers in the color-protecting and shape-preserving flower preservation solution for a period of time, and finally performing gradient freeze-drying.
[0028] Before immersing the flowers in the color-preserving and shape-maintaining floral preservation solution, the flowers are partially dehydrated using silica gel to facilitate better absorption of the solution later. The flowers are then immersed in the solution for a period of time to allow for full absorption of its components. The vacuum freeze-drying method has certain unique characteristics; the drying of the flowers is carried out under high vacuum conditions, minimizing changes in color and composition, and adhering to the principles of physical color preservation.
[0029] In this embodiment, a gradient cooling freezing method is used. During this process, the flowers do not lose all moisture immediately, reducing damage to flower cells and plant fibers caused by rapid changes in humidity, thus preserving the flower shape to the greatest extent possible. A gradient heating method is also used during the drying process to avoid damage to the flower's shape caused by sudden increases in temperature.
[0030] In this embodiment, the flower preservation liquid provided above is used, combined with chemical and physical color protection methods. By adopting the preserved flower production steps described above, preserved flowers with clear veins, complete shapes, realistic colors that are not easy to fade, a feel like real flowers, and a long preservation time can be obtained.
[0031] The features and performance of the present invention will be further described in detail below with reference to embodiments.
[0032] Example 1
[0033] This embodiment provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1.5 parts of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 2.5 parts of a pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%), 1 part of a vitamin C solution, 1.5 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0034] Example 2
[0035] This embodiment provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1 part of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 3 parts of a pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%), 0.8 parts of a vitamin C solution, 2 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0036] Example 3
[0037] This embodiment provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 2 parts of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 2 parts of a pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%), 1.2 parts of a vitamin C solution, 1 part of a fatty acid diethanolamide, and 50 parts of pure water.
[0038] Example 4
[0039] This embodiment provides an application of the color-protecting and shape-preserving flower preservation solution provided in Embodiment 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0040] Example 5
[0041] This embodiment provides an application of the color-protecting and shape-preserving fresh flower preservation solution provided in Embodiment 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.5 mm on a sealed container to a thickness of 3 cm, placing the fresh flowers in the container and letting them stand for 24 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a fresh flower preservation solution at a temperature of 22°C for 60 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes;
[0042] (3) The preserved flowers are obtained by drying. The drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, then heating to 15°C and holding for 60 minutes.
[0043] Example 6
[0044] This embodiment provides an application of the color-protecting and shape-preserving flower preservation solution provided in Embodiment 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 1mm on a sealed container to a thickness of 2cm, placing the flowers in the container and letting them stand for 48h to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 25℃ for 30min, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -5℃ for 40min, then freezing at -15℃ for 40min, and then freezing at -28℃ for 40min; (3) drying to obtain preserved flowers; the drying conditions include: heating to 8℃ and holding for 20min, then heating to 12℃ and holding for 20min, and then heating to 18℃ and holding for 20min.
[0045] Comparative Example 1
[0046] This comparative example provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 0.8 parts of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 4 parts of a pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%), 0.5 parts of a vitamin C solution, 3 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0047] Comparative Example 2
[0048] This comparative example provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 3 parts of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 1 part of a pigment fixative (citric acid and magnesium chloride solution in a mass ratio of 2:1), 1.5 parts of a vitamin C solution, 0.8 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0049] Comparative Example 3
[0050] This comparative example provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1.5 parts propylene glycol, 2.5 parts pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%), 1 part vitamin C solution, 1.5 parts fatty acid diethanolamide, and 50 parts purified water.
[0051] Comparative Example 4
[0052] This comparative example provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1.5 parts of a shape-preserving agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 2.5 parts of citric acid, 1 part of vitamin C solution, 1.5 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0053] Comparative Example 5
[0054] This comparative example provides a color-protecting and shape-preserving flower preservation solution, which, by weight, comprises: 1.5 parts of a shape-protecting agent (propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4), 2.5 parts of a pigment fixative (citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 40%), 1 part of a vitamin C solution, 1.5 parts of fatty acid diethanolamide, and 50 parts of pure water.
[0055] Comparative Example 6
[0056] This comparative example provides the application of the color-protecting and shape-preserving fresh flower preservation solution provided in Example 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, soaking the flowers in the fresh flower preservation solution at a temperature of 24°C for 40 minutes, and cooling them down to the pre-treated flowers freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0057] Comparative Example 7
[0058] This comparative example provides an application of the color-protecting and shape-preserving flower preservation solution provided in Example 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them to -32°C and freezing them for 1.5 hours; (3) drying them to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0059] Comparative Example 8
[0060] This comparative example provides an application of the color-protecting and shape-preserving flower preservation solution provided in Example 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) heating to 15°C and holding for 130 minutes to dry to obtain preserved flowers.
[0061] Comparative Example 9
[0062] This comparative example provides an application of the color-protecting and shape-preserving flower preservation solution provided in Example 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 2 mm on a sealed container to a thickness of 1 cm, placing the flowers in the container and letting them stand for 12 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0063] Comparative Example 10
[0064] This comparative example provides an application of the color-protecting and shape-preserving flower preservation solution provided in Example 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 20°C for 60 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0065] Comparative Example 11
[0066] This embodiment provides an application of the color-protecting and shape-preserving flower preservation solution provided in Embodiment 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -5°C for 40 minutes, then freezing at -15°C for 40 minutes, and then freezing at -28°C for 40 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 5°C and holding for 30 minutes, then heating to 10°C and holding for 40 minutes, and then heating to 15°C and holding for 60 minutes.
[0067] Comparative Example 12
[0068] This embodiment provides an application of the color-protecting and shape-preserving flower preservation solution provided in Embodiment 1 in the preparation of rose preserved flower products, including: (1) picking fresh flowers, washing and drying them, cutting off the stems and leaves, spreading silica powder with a particle size of 0.8 mm on a sealed container to a thickness of 2.5 cm, placing the flowers in the container and letting them stand for 36 hours to obtain pretreated flowers; (2) immersing the pretreated flowers in a flower preservation solution at a temperature of 24°C for 40 minutes, and then cooling them down to freezing temperature using a gradient cooling method: the gradient cooling conditions are freezing at -10°C for 30 minutes, then freezing at -18°C for 30 minutes, and then freezing at -32°C for 30 minutes; (3) drying to obtain preserved flowers; the drying conditions include: heating to 8°C and holding for 20 minutes, then heating to 12°C and holding for 20 minutes, and then heating to 18°C and holding for 20 minutes.
[0069] Experimental Example 1
[0070] The color-protecting and shape-preserving flower preservation solutions provided in Examples 1-3 and Comparative Examples 1-5 were used to prepare preserved roses, and the application of the color-protecting and shape-preserving flower preservation solution provided in Example 4 in the preparation of preserved rose products was also used. Examples 1-3 and Comparative Examples 1-5 were set as experimental groups 1-8, and Examples 5-6 and Comparative Examples 6-12 were set as experimental groups 9-17.
[0071] This experiment evaluates the color of the preserved roses prepared in experimental groups 1-17:
[0072] Color evaluation indicators include: hue, color uniformity, and degree of distortion.
[0073] The color evaluation results of the preserved roses prepared in experimental groups 1-17 are shown in Table 1.
[0074] Table 1. Color Evaluation Results of Preserved Roses
[0075]
[0076]
[0077] As shown in Table 1, experimental groups 1-3 and 9-10 used the color-protecting and shape-preserving fresh flower preservation solution provided in this application, and its application in the preparation of preserved flower products. The resulting preserved roses had colors close to real flowers, bright hues, and uniform color. This indicates that the formulation and proportions of the color-protecting and shape-preserving fresh flower preservation solution provided in this application, especially the use of the pigment fixative specified in this application, and the coordination between the process parameters in the application process of this solution in the preparation of preserved flower products, result in excellent color-protecting properties.
[0078] Experiment Example 2
[0079] The color-protecting and shape-preserving flower preservation solutions provided in Examples 1-3 and Comparative Examples 1-5 were used to prepare preserved roses, and the application of the color-protecting and shape-preserving flower preservation solution provided in Example 4 in the preparation of preserved rose products was also used. Examples 1-3 and Comparative Examples 1-5 were set as experimental groups 1-8, and Examples 5-6 and Comparative Examples 6-12 were set as experimental groups 9-17.
[0080] This experiment evaluates the appearance and morphology of the preserved roses prepared in experimental groups 1-17:
[0081] The evaluation indicators for appearance and morphology include: flower shape, petal wrinkles, degree of curling, and petal elasticity.
[0082] The evaluation results of the appearance morphology of the preserved roses prepared in experimental groups 1-17 are shown in Table 2.
[0083] Table 2 Evaluation results of the appearance and morphology of preserved roses
[0084] Group number Appearance evaluation Experimental group 1 The flower shape is very similar to that of a real flower, with almost no wrinkles or curls in the petals, and the petals are quite elastic. Experimental group 2 The flower shape is very similar to that of a real flower, with almost no wrinkles or curls in the petals, and the petals are quite elastic. Experimental group 3 The flower shape is very similar to that of a real flower, with almost no wrinkles or curls in the petals, and the petals are quite elastic. Experimental group 4 The shape of the flower differs somewhat from that of a real flower; the petals have a few wrinkles and curls, and the petals are less elastic. Experimental group 5 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 6 The shape of the flower differs significantly from that of a real flower; the petals have numerous folds and curls, and their elasticity is relatively poor. Experimental group 7 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 8 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 9 The flower shape is very similar to that of a real flower, with almost no wrinkles or curls in the petals, and the petals are quite elastic. Experimental group 10 The flower shape is very similar to that of a real flower, with almost no wrinkles or curls in the petals, and the petals are quite elastic. Experimental group 11 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 12 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 13 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 14 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 15 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 16 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity. Experimental group 17 The shape of the flower differs somewhat from that of a real flower; the petals have slight wrinkles and curls, and the petals have a certain degree of elasticity.
[0085] As shown in Table 2, experimental groups 1-3 and 9-10 used the color-protecting and shape-preserving fresh flower preservation solution provided in this application, and its application in the preparation of preserved flower products. The resulting preserved roses had flower shapes that were very similar to real flowers, with petals that were almost wrinkle-free and curled, and the petals were elastic. This indicates that the formulation and proportions of the color-protecting and shape-preserving fresh flower preservation solution provided in this application, especially the use of the shape-preserving agent specified in this application, and the coordination between the process parameters in the steps involved in its application in the preparation of preserved flower products, can achieve a shape-preserving effect.
[0086] Experimental Example 3
[0087] The color-protecting and shape-preserving flower preservation solutions provided in Examples 1-3 and Comparative Examples 1-5 were used to prepare preserved roses, and the application of the color-protecting and shape-preserving flower preservation solution provided in Example 4 in the preparation of preserved rose products was also used. Examples 1-3 and Comparative Examples 1-5 were set as experimental groups 1-8, and Examples 5-6 and Comparative Examples 6-12 were set as experimental groups 9-17.
[0088] This experiment evaluates the fading time of the preserved roses prepared in experimental groups 1-17:
[0089] The fading time index includes: observing the fading time of preserved roses stored at 5℃, room temperature and 40℃ respectively.
[0090] The evaluation results of the fading time of the preserved roses prepared in experimental groups 1-17 are shown in Table 3.
[0091] Table 3 Evaluation results of fading time of preserved roses
[0092] Group number 5℃ room temperature 40℃ Experimental group 1 5 years 3 years 8 months Experimental group 2 5 years 3 years 8 months Experimental group 3 5 years 3 years 8 months Experimental group 4 4 years 2 years 6 months Experimental group 5 4 years 2 years 6 months Experimental group 6 2 years 1 year 3 months Experimental group 7 2 years 1 year 3 months Experimental group 8 4 years 2 years 6 months Experimental group 9 5 years 3 years 8 months Experimental group 10 5 years 3 years 8 months Experimental group 11 3 years 2 years 6 months Experimental group 12 4 years 2 years 6 months Experimental group 13 4 years 2 years 6 months Experimental group 14 4 years 2 years 6 months Experimental group 15 4 years 2 years 6 months Experimental group 16 4 years 2 years 6 months Experimental group 17 4 years 2 years 6 months
[0093] As shown in Table 3, experimental groups 1-3 and 9-10 used the color-protecting and shape-preserving fresh flower preservation solution provided in this application, and its application in the preparation of preserved flower products. The resulting preserved roses could extend the fading time to a greater extent, and the color preservation effect was better. This indicates that the formulation and ratio of the color-protecting and shape-preserving fresh flower preservation solution provided in this application, especially the use of the shape-protecting agent and pigment fixative specified in this application, and the coordination between the process parameters in the application process of this solution in the preparation of preserved flower products, can achieve excellent color preservation.
[0094] In summary, the color-protecting and shape-preserving flower preservation solution provided by this invention has a simple composition and excellent color-protecting and shape-preserving effects in the production of preserved flowers. It helps preserved flowers maintain their vibrancy and longevity, resulting in preserved flowers with clear veins, intact shapes, realistic colors that are not easily faded, a feel similar to real flowers, and a long preservation time. The application of the color-protecting and shape-preserving flower preservation solution provided in this application in the preparation of preserved flower products utilizes the flower preservation solution provided in this embodiment, combining chemical and physical color-protecting methods. This not only produces lifelike preserved flowers but also shortens the production time and simplifies the process, facilitating widespread adoption and large-scale production.
[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A color-protecting and shape-preserving flower preservation solution, characterized in that, By weight, its raw materials include: 1-2 parts of shape protectant, 2-3 parts of pigment fixative, 0.8-1.2 parts of antioxidant, and 1-2 parts of stabilizer; The protective agent comprises propylene glycol, ethanol, and n-butanol in a mass ratio of 1:2:4; The pigment fixative comprises citric acid in a mass ratio of 2:1 and magnesium chloride solution with a concentration of 35%. The antioxidant includes one of vitamin C solution, L-ascorbic acid, and sodium L-ascorbate; The stabilizer includes one of fatty acid diethanolamide and polyoxyethylene alkyl ether.
2. The application of the color-protecting and shape-preserving flower preservation solution according to claim 1 in the preparation of preserved flower products.
3. The application of the color-protecting and shape-preserving fresh flower preservation solution according to claim 2 in the preparation of preserved flower products, characterized in that, include: (1) After picking fresh flowers, washing and drying them, cut off the stems and leaves, and sort the 0.5 mm diameter flowers. Spread 1mm silica gel powder evenly in a sealed container to a thickness of 2-3cm, place the fresh flowers in the container and let stand for 24-48 hours to obtain pretreated fresh flowers; (2) Immerse the pretreated flowers in the flower preservation solution and cool them down until the pretreated flowers are frozen; (3) Drying yields preserved flowers.
4. The application of the color-protecting and shape-preserving fresh flower preservation solution according to claim 3 in the preparation of preserved flower products, characterized in that, In step (2), the temperature of the flower preservation solution is 22-25℃, and the soaking time before cooling is 30-60 minutes.
5. The application of the color-protecting and shape-preserving fresh flower preservation solution according to claim 3 in the preparation of preserved flower products, characterized in that, In step (2), the cooling is done in a gradient manner: freezing at -10℃ for 30 min, then freezing at -18℃ for 30 min, and then freezing at -32℃ for 30 min.
6. The application of the color-protecting and shape-preserving fresh flower preservation solution according to claim 3 in the preparation of preserved flower products, characterized in that, In step (3), drying includes: heating to 5°C and holding for 30 min, then heating to 10°C and holding for 40 min, then heating to 15°C and holding for 60 min.