Immortal plant and method for preparing the same

By treating plants with a low-temperature immersion in an active preservation solution, the problems of wilting and discoloration during plant preservation in traditional methods are solved, achieving a balance between long-term preservation and fresh appearance, and is applicable to a variety of plant species.

CN122397713APending Publication Date: 2026-07-17

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing methods cannot extend the preservation of plants while maintaining the fresh appearance of delicate plants, especially leaves and flowers, which are prone to wilting, discoloration and rotting due to water loss. Furthermore, traditional methods can cause plants to deform or become dull in color.

Method used

The active preservative is immersed in a low-temperature preservation solution composed of glycerol, deionized water, nonionic surfactant and preservative. The immersion temperature is 15℃-25℃ and the immersion time is 5-10 days. After immersion, the product is dried.

Benefits of technology

It keeps plants fresh, with vibrant colors, full shapes, and flexible textures, and can be enjoyed for several years. It is suitable for a variety of plant species, including both woody and non-woody plants.

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Abstract

This invention discloses a preserved plant and its preparation method. Plant materials are immersed in a low-temperature active preservation solution, which includes glycerol, deionized water, a nonionic surfactant, and a preservative. The amount of glycerol added is 30%-40% of the total volume of glycerol and water; the amount of the nonionic surfactant and preservative added is 0.05%-0.15% each. The advantages of this invention are: the process is gentle, applicable to a variety of plants, and the treated plant materials are vibrant, with upright branches and leaves, and soft, elastic leaves. The color vibrancy, morphological fullness, and texture flexibility are all extremely close to their fresh state, and the viewing period can be up to 5 years or more, balancing long-term preservation with a fresh appearance.
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Description

Technical Field

[0001] This invention relates to the field of plant preservation technology, and in particular to an immortalized plant and its preparation method. Background Technology

[0002] For many delicate leaves and flowers, high-temperature treatment causes them to wilt rapidly, discolor, and die cells, resulting in a very short ornamental period. Existing methods cannot extend their lifespan while maintaining their "fresh" appearance.

[0003] Currently, delicate, brightly colored flowers and plants are highly susceptible to cell death due to water loss after being removed from the plant, resulting in wilting, discoloration, and rotting, thus shortening their natural ornamental period. Existing preservation methods, such as drying, pressing, refrigeration, or chemical preservation, while extending preservation time to varying degrees, generally have significant drawbacks: they may cause severe plant deformation and dulling of color, or fail to maintain their shape at room temperature for extended periods, especially failing to simultaneously preserve the plant's original three-dimensional form, vibrant color, and supple texture. Current technology cannot achieve long-term preservation while maintaining a vibrant, lifelike appearance. Therefore, an innovative method is urgently needed to solve the technical problem of simultaneously achieving long-term preservation of delicate plant materials and maintaining their fresh appearance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a preserved plant that can maintain its fresh appearance to the greatest extent and has a viewing period of several years, as well as a method for preparing the same.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is a preserved plant and its preparation method, comprising the following steps: S1. Preparation of active preservative solution: The active preservative solution includes glycerol, deionized water, nonionic surfactant, and preservative; wherein, the amount of glycerol added is 30%-40% of the total volume of glycerol and water; S2. Plant material preparation: Select fresh, undamaged plant materials and remove impurities attached to the plants; impurities include dust and mud. S3. Low-temperature soaking: The plant material is completely immersed in the active preservation solution prepared in step S1 for 5-10 days, and the soaking temperature is 15℃-25℃. S4. Drying: After soaking, remove the plant material and then dry it.

[0006] Furthermore, the amount of nonionic surfactant added is 0.05%-0.15% of the total volume of glycerol and water; the amount of preservative added is 0.05%-0.15% of the total volume of glycerol and water.

[0007] Furthermore, nonionic surfactants include TW-80 or TW-20.

[0008] Furthermore, the preservative includes at least one of thymol and benzalkonium chloride.

[0009] Furthermore, the method for determining the soaking cutoff time in step S3 is when the leaf becomes soft and elastic as a whole, and the weight change is stable.

[0010] Furthermore, in step S3, the relative humidity of the soaking environment is 60%-70%; the lighting conditions of the soaking environment are to avoid direct sunlight.

[0011] Furthermore, the ventilation conditions of the immersion environment in step S3 are natural ventilation.

[0012] Furthermore, the plant materials include boxwood, small-leaved rosewood, small-leaved elm, moss, ferns, and baby's breath.

[0013] The present invention also provides immortalized plants prepared by the above-described method for preparing immortalized plants.

[0014] The present invention also provides an active preservation solution, comprising glycerol, deionized water, nonionic surfactant, and preservative; wherein the amount of glycerol added is 30%-40% of the total volume of glycerol and water; the amount of the nonionic surfactant added is 0.05%-0.15% of the total volume of glycerol and water; and the amount of the preservative added is 0.05%-0.15% of the total volume of glycerol and water.

[0015] Beneficial effects of this invention: This invention involves immersing plant materials in a specific active preservation solution at a low temperature of 15℃-25℃. This process slows down the plant's metabolic rate, maintaining some cellular activity while the active preservation solution slowly penetrates the plant material, gradually replacing water in the leaves. Furthermore, it completely avoids damage to the cell structure of heat-sensitive plants caused by high temperatures, thus ensuring the integrity of the plant tissue from the source. This invention fundamentally overcomes the technical bottleneck of traditional methods that cause plant shrinkage and discoloration due to high temperatures or severe dehydration. The treated plant materials are vibrant, with upright branches and leaves, and soft, elastic leaves. They approximate their fresh state in terms of color vibrancy, fullness of shape, and flexibility, and can be displayed for more than 5 years, balancing long-term preservation with a fresh appearance.

[0016] Furthermore, the method of this invention is gentle and applicable to a wide variety of plants. It is not only suitable for plants that do not easily absorb active preservation liquid, such as boxwood, small-leaved sandalwood, and small-leaved elm, including woody and semi-woody plants, but also particularly suitable for non-woody soft plants (such as mosses, ferns, and baby's breath) that are thin-structured, have no thick cuticle, no large amount of wood / fiber, stable pigments, are not easily rotten, and are easily penetrated by preservation liquid. This solves the problem that such materials are easily damaged in traditional high-temperature treatments and greatly expands the product categories of preserved plants. Attached Figure Description

[0017] Figure 1 Example 1 ( Figure 1 (a) and Comparative Example 1 ( Figure 1 (b) A diagram showing the state of the prepared moss; Figure 2 Example 2 ( Figure 2 (a) and Comparative Example 2 ( Figure 2 (b) A state diagram of the prepared boxwood; Figure 3 Example 3 ( Figure 3 (a) and Comparative Example 3 ( Figure 3 (b) A state diagram of the prepared Selaginella. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] Example 1 An immortalized plant and its preparation method, comprising the following steps: S1. Preparation of active preservative solution: The active preservative solution includes glycerol, deionized water, nonionic surfactant, and preservative; wherein, the amount of glycerol added is 30% of the total volume of glycerol and water; the amount of nonionic surfactant added is 0.1% of the total volume of glycerol and water; and the amount of preservative added is 0.1% of the total volume of glycerol and water. S2. Plant material preparation: Select fresh, undamaged plant materials and remove impurities attached to the plants; impurities include dust and mud; in this embodiment, the plant material is moss; in another embodiment, the plant material can also be other plants that do not easily absorb the active preservation solution, such as small-leaved sandalwood and small-leaved elm. S3. Low-temperature soaking: The plant material is completely immersed in the active preservation solution prepared in step S1 for 5-10 days. The soaking temperature is 15℃-25℃ and the relative humidity of the soaking environment is 60%-70%. S4. Drying: After soaking, remove the plant material, wipe the surface of the active preservative solution, and then dry it. The drying method can be natural drying or low-temperature drying, with a drying temperature of 28-35℃ and a drying time of 4 hours.

[0020] Specifically, the nonionic surfactant is TW-80, and in another embodiment, the nonionic surfactant can also be TW-20.

[0021] Specifically, the preservative is thymol. In another embodiment, the preservative may also be benzalkonium chloride, or a mixture of thymol and benzalkonium chloride.

[0022] Specifically, the method for determining the soaking cutoff time in step S3 is when the leaf becomes soft and elastic as a whole, and the weight change is stable.

[0023] Specifically, the lighting conditions of the immersion environment in step S3 are to avoid direct sunlight.

[0024] Specifically, the ventilation conditions of the immersion environment in step S3 are natural ventilation.

[0025] Compared to other green plants, moss has a simple structure and thin cell walls, making it prone to severe shrinkage, discoloration, and brittleness when dried using traditional methods. While soaking in room temperature glycerin can maintain some flexibility, it is difficult to preserve its vibrant green color and fluffy texture, and the soaking time is long. The moss treated in Example 2 is vibrant, preserving its original fluffiness, shape, and vibrant green color to the greatest extent possible. The finished moss is soft to the touch, non-sticky, and has a very natural feel. Its ornamental period can last for more than 5 years. The resulting product... Figure 1 As shown in (a).

[0026] Example 2 In Example 1, the plant material was replaced with boxwood instead of moss. The remaining steps were the same as in Example 1. The resulting product was as follows: Figure 2 As shown in (a). In another embodiment, the amount of nonionic surfactant and preservative added can be changed to 0.15%.

[0027] The above process involves no heating, completely eliminating protein denaturation, pigment degradation, and cell wall collapse caused by high temperatures, thus laying a cellular foundation for maintaining the "fresh" texture of the plants. The treated plants can maintain a vibrant color close to their initial harvest color for a long time, with upright branches and leaves that are soft, glossy, elastic, and full in shape. They also have a supple and resilient feel, exuding vitality. Their ornamental quality far surpasses that of traditional drying processes, and their ornamental period can last for more than 5 years.

[0028] Example 3 In Example 1, the plant material was replaced with Selaginella (a fern) instead of moss, and the amount of glycerol added was changed from 30% to 35%; the remaining steps were the same as in Example 1. The resulting product was as follows: Figure 3 As shown in (a). In another embodiment, the amount of nonionic surfactant and preservative added can be changed to 0.05%.

[0029] Comparative Example 1 Compared to Example 1, the amount of glycerin added was changed from 30% to 15%; the remaining steps were the same as in Example 1, and the resulting product was as follows: Figure 1 As shown in (b). By Figure 1 As can be seen, the moss treated by the method in Comparative Example 1 turned dry and yellow, completely losing the texture of fresh moss.

[0030] Comparative Example 2 Compared to Example 2, the amount of glycerin added was changed from 30% to 25%; the remaining steps were the same as in Example 2. The resulting product is as follows: Figure 2 As shown in (b), as can be seen from Figure 2, the boxwood treated by the method in Comparative Example 2 has leaves that are yellow, dry, withered, and lack vitality.

[0031] Comparative Example 3 Compared to Example 3, the amount of glycerin added was changed from 35% to 20%; the remaining steps were the same as in Example 2. The resulting product was as follows: Figure 3 As shown in (b). By Figure 3 It can be seen that the Selaginella tamariscina treated by the method in Comparative Example 3 had yellowing, drying, and deformation of its branches.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A method for preparing immortalized plants, characterized in that: Includes the following steps: S1. Preparation of active preservative solution: The active preservative solution includes glycerol, deionized water, nonionic surfactant, and preservative; wherein, the amount of glycerol added is 30%-40% of the total volume of glycerol and water; S2. Plant material preparation: Select fresh, undamaged plant materials and remove impurities attached to the plants; impurities include dust and mud. S3. Low-temperature soaking: The plant material is completely immersed in the active preservation solution prepared in step S1 for 5-10 days, and the soaking temperature is 15℃-25℃. S4. Drying: After soaking, remove the plant material and then dry it.

2. The method for preparing immortalized plants according to claim 1, characterized in that: In step S1, the amount of nonionic surfactant added is 0.05%-0.15% of the total volume of glycerol and water; the amount of preservative added is 0.05%-0.15% of the total volume of glycerol and water.

3. The method for preparing immortalized plants according to claim 1 or 2, characterized in that: Nonionic surfactants include TW-80 or TW-20.

4. The method for preparing immortalized plants according to claim 1, characterized in that: The preservative includes at least one of thymol and benzalkonium chloride.

5. The method for preparing immortalized plants according to claim 1, characterized in that: The method for determining the soaking cutoff time in step S3 is when the leaf becomes soft and elastic as a whole, and the weight change is stable.

6. The method for preparing immortalized plants according to claim 1, characterized in that: In step S3, the relative humidity of the soaking environment is 60%-70%; the lighting conditions of the soaking environment should avoid direct sunlight.

7. The method for preparing immortalized plants according to claim 1, characterized in that: In step S3, the ventilation conditions of the immersion environment are natural ventilation.

8. The method for preparing immortalized plants according to claim 1, characterized in that: The plant materials include boxwood, small-leaved rosewood, small-leaved elm, moss, ferns, and baby's breath.

9. The immortalized plant prepared by the method of any one of claims 1-8.

10. An active preservation solution, applied to the method for preparing immortalized plants according to any one of claims 1-8, characterized in that: The active preservation solution includes glycerol, deionized water, nonionic surfactant, and preservative; wherein the amount of glycerol added is 30%-40% of the total volume of glycerol and water; the amount of nonionic surfactant added is 0.05%-0.15% of the total volume of glycerol and water; and the amount of preservative added is 0.05%-0.15% of the total volume of glycerol and water.