31results about "Dead plant preservation" patented technology

This invention provides a method for storing mango seeds, belonging to the field of seed preservation technology. The method involves cutting off mango fruits with embryos, along with their pedicels and branches, 77-84 days after fruit set. A mixture of pyraclostrobin, lambda-cyhalothrin, and chlorothalonil is sprayed on the fruit, pedicels, and branches. After drying, styrene-butadiene latex is applied to the pedicels and branches. Once the latex dries, a mixture of guanidine-copper acetate and benzoyl-pyraclostrobin is sprayed on the fruit, pedicels, and branches again. After drying, the mango fruits with petioles and branches are placed in a sealed box and stored at 10-14°C. The mango variety used is the Golden Phoenix mango. This invention increases the storage period of Golden Phoenix mango seeds from 1.5 months to 5 months, which is of great significance for the genomics and cell biology research of Golden Phoenix mangoes.

This invention discloses a method and apparatus for preserving fresh Chinese medicinal herbs using a combined electric and magnetic field, belonging to the field of post-harvest preservation technology. The method includes: placing cleaned and disinfected fresh Chinese medicinal herbs in a storage device, while simultaneously applying a low-frequency polarized electric field and a static magnetic field; wherein the output voltage of the low-frequency polarized electric field is 3000 V, the current is 1-5 mA, the frequency is 50-60 Hz, and the electric field strength is 25-35 kV / m; the strength of the static magnetic field is 350-450 Gs. This invention effectively regulates cell membrane permeability and free radical metabolism through the spatial synergistic effect of the low-frequency polarized electric field and the static magnetic field, significantly delaying post-harvest decay of Chinese medicinal herbs, inhibiting microbial growth, maintaining the stability of active ingredients, and achieving good preservation effects even at relatively high storage temperatures. It has advantages such as energy saving, being green, easy to operate, and highly applicable, and is suitable for the storage and preservation of various fresh Chinese medicinal herbs.

This invention provides a method for producing dried flowers that can maintain their shape, natural color, and texture, which are close to those of fresh flowers, for an extended period of time. [Solution] The present invention relates to a method for producing dried flowers, which includes the steps of immersing the roots of a flowering plant in a container filled with an aqueous polyethylene glycol solution and irradiating it with ultrasound to allow the aqueous polyethylene glycol solution to penetrate the flowering plant.

The application relates to a method for screening rhododendron annum varieties, which utilizes the cutting branch refrigeration technology to catalyze rhododendron to bloom, constructs an analytic hierarchy process according to refrigeration quality indexes such as the refrigeration freeze injury rate, the time required from the refrigeration warehouse to blooming, the branch blooming rate and blooming quality indexes such as the inflorescence opening degree and the inflorescence size, compares the blooming quality of the tested varieties with the pot flower of rhododendron as a contrast, the varieties with significant differences in the comprehensive scores and the pot flower are determined as unsuitable for blooming, and the varieties without significant differences are determined as suitable for blooming, that is, the rhododendron annum varieties. The application provides a method for screening rhododendron annum varieties, which is easy to implement and less harmful to the pot flower, can not only reduce the screening difficulty of the rhododendron annum varieties, but also effectively promote the large-scale production of self-bred rhododendron annum new varieties.

This invention discloses a nano-bandage for preserving cut flowers, belonging to the field of horticultural technology. The nano-bandage consists of a polymer carrier and a bactericide encapsulated therein. The polymer is a mixture of PEG and PDMAEMA. By adjusting the mass fraction and total concentration of PDMAEMA, the particle size of the nanoparticles can be controlled, and their surface can be positively charged. It is prepared using microfluidic co-assembly technology, where the drug-containing organic phase and aqueous phase are instantaneously mixed and purified by dialysis. This nano-bandage actively targets and persistently accumulates on the negatively charged cut surface of fresh cut flowers using electrostatic interactions, forming a physical barrier. It also synergistically inhibits microbial infection through slow-release bactericide and charge adsorption, while its nano-size does not affect vascular function. This invention achieves precise and long-lasting protection for cut flower wounds, significantly extending vase life with extremely low dosage, and has the advantages of high efficiency, safety, and intelligent adjustability.

This application relates to methods of inhibiting the growth of microbes in and / or on plant-based products by treating the plant-based products with a composition including one or more ascarosides.

The application discloses a preservative solution for prolonging the life of cut flowers of Impatiens walleriana and a preparation method thereof, and relates to the field of postharvest preservation technology of Impatiens walleriana. The preservative solution is composed of glucose, gibberellin, 8-hydroxyquinoline sulfate, citric acid and deionized water in a specific proportion, wherein the glucose is 3.0% (w / v), the gibberellin is 25 mg / L, the 8-hydroxyquinoline sulfate is 100 mg / L, the citric acid is 80 mg / L, and the balance is deionized water. When the preservative solution is prepared, the gibberellin is first dissolved in anhydrous ethanol to prepare an alcohol-soluble mother liquor, the 8-hydroxyquinoline sulfate is dissolved in deionized water to prepare an aqueous mother liquor, and then the glucose and the citric acid solution are mixed step by step and constant volume is performed, so that a uniform transparent preservative solution is finally prepared. According to the scheme, the cell membrane integrity of the cut flowers of Impatiens walleriana can be effectively maintained, petal browning and water loss can be delayed, the best viewing period and the vase life of the cut flowers can be significantly prolonged, the commodity value can be improved, raw materials are conventional, the process is simple, and the scheme is suitable for large-scale application.

A clathrate of 1-methylcyclopropene with α-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.

The invention discloses a plant primary color specimen pressing and preserving method, and relates to the field of plant specimen manufacturing. Firstly, a complete specimen is collected; the specimens are preliminarily arranged, and redundant branches and leaves are cut off; the specimen is placed on the newspaper supported by the corrugated paper, then the newspaper is closed, and a piece of corrugated paper is placed on the newspaper and pressed well; the specimens need to be carefully trimmed after being sorted for the second time, then the newspaper and the corrugated paper are closed again, and the specimens are put into a sealing bag; a silica gel drying agent is poured into the sealing bag and laid flat, the sealing bag is sealed, a small opening is reserved in the sealing bag, all the specimens are placed on the specimen holder by repeating the operation, the specimen binding band is tightened until the specimen binding band cannot be pulled, then sealing is conducted, and the silica gel drying agent is dried for 3-5 days. The problems that a traditional dried specimen is prone to mildewing, coking and damage, leaves are uneven, the specimen is affected by the environment, and the drying time is uncertain are solved, the primary color, flatness and attractiveness of the specimen are reserved, and display and research are facilitated.

This invention discloses a spring grafting method for peonies, belonging to the field of peony grafting technology. It includes the following steps: S1. In early spring, one-year-old branches with healthy dormant flower buds are cut from peonies as scions and then sealed; S2. The sealed scions are frozen at -18℃ to -25℃. 12-16 hours before grafting, the frozen scions are taken out, first placed at 2℃-5℃ for 2-4 hours to warm up, and then placed at room temperature for 10-14 hours; S3. The warmed scions are wax-sealed; S4. Ten days before / after the vernal equinox, when the average daily temperature is stable above 15℃, the wax-sealed scions are grafted onto peony rootstock using the ground-digging grafting method; S5. The grafted plants are promptly and completely covered with soil. This invention organically integrates multiple steps, including scion collection timing, low-temperature preservation, gradient warming, scion pretreatment, and specific grafting operations, breaking the time restriction that peonies can only be grafted in autumn and enabling spring grafting.

This invention provides exosomes derived from rice, their preparation method, and applications. The exosomes have a bilayered membrane spherical structure with a particle size ranging from 20 to 1000 nm. These exosomes are obtained from rice callus tissue and possess high biocompatibility, stability, and sustainable mass production characteristics. Furthermore, experiments have demonstrated that these exosomes have anti-aging, cell regeneration and tissue repair promotion, and protective functions, and can also significantly improve cell absorption efficiency and the delivery efficiency of active ingredients such as peptides.

A device for prolonging life of one or more perishable items, the device comprising a planar mesh providing a planar surface, configured to generate an electric field and to disperse the electric field from the planar surface, wherein the electric field dispersed from the planar surface inhibits water molecules of said items from bonding together to form ice crystals, thereby prolonging the life of the items.

An oil-ester composition is shown and described herein. The oil-ester composition is suitable as a rainfastening agent for application to a biological substrate. The oil-ester composition may be employed in conjunction with agrochemicals to apply agrochemicals to a biological substrate. The oil-ester composition exhibits excellent rainfastness to prevent significant run off of an agrochemical upon exposure to water after application to a substrate.

The invention describes a system for drying biomass (FEED) originating from plant cell lines comprising: a horizontal spray dryer comprising a drying chamber (12), extending prevalently in a horizontal direction, and adapted to dry the biomass; a supply conduit adapted to supply a flow (FEED) of the biomass to the drying chamber (12); an air supply unit (11) adapted to inject hot air to the drying chamber (12); an outlet conduit (18) adapted for an outflow of the solid fraction from the drying chamber (12); a cyclone unit (20) connected to the drying chamber (12); wherein the horizontal spray dryer (10) is adapted to operate on the basis of predefined values of operating parameters (POi; i=1..n) defined on the basis of the predefined botanical species and / or cell line; the system further comprising a processing unit (100) configured to: (f0) calculate a first mathematical model (MODI) of operation of the horizontal spray dryer (10); (f01) calculate coefficients (Ci_POi) of every individual selected operating parameter (POi); to carry out steps of: (f1) calculating a second mathematical model (MOD2) of operation of the horizontal spray dryer (10); (f02) calculating coefficients (Ci_PO_opti) of every individual selected operating parameter (PO_opti); (f2) calculating a yield value (Y); if the calculated yield value (Y) is greater than a predefined threshold value (YTH), carrying out a step (f3) of applying the second mathematical model (MOD2) to configure the dryer (10) to obtain solid particles at the predefined particle size, with the calculated yield value (Y). The invention further describes a drying process in accordance with the described system.

The specification relates to a compound of formula (I), its enantiomer, diastereomer, or its physiologically acceptable salt thereof, along with a composition containing the same; wherein Q, J, R1, R2, R3, R4 and Ra are as disclosed herein The compound or composition have potential for use as a cryopreservation agent or an ice crystal recrystallization inhibitor. In addition, disclosed is a method for cryopreserving a biological material. Further, disclosed is a process for preparation of the compound.

This utility model provides a mold for processing preserved aquatic plants, including a mold mechanism. The interior of the mold mechanism is used to place aquatic plants, and a sealing mechanism is provided at the top of the mold mechanism. The sealing mechanism includes a sealing cover, and an auxiliary equipment mounting cylinder is provided on the outer surface of the sealing cover. The auxiliary equipment mounting cylinder is connected to the interior of the sealing cover, and the interior of the auxiliary equipment mounting cylinder is provided with internal threads. In use, by setting a sealing cover above the mold mechanism and setting an auxiliary equipment mounting cylinder on the side of the sealing cover, and by setting internal threads inside the auxiliary equipment mounting cylinder, when drying the aquatic plants, a drying lamp or hot air blower is installed at the auxiliary equipment mounting cylinder, and when dyeing, a color spraying device is installed at the auxiliary equipment mounting cylinder. During dehydration and dyeing, there is no need to move the aquatic plants, thus avoiding damage to the petals.

The present invention provides a foam and a foamable composition comprising water and a salt of a hydroxy fatty acid, such as hydroxystearic acid. Also provided is a method of protecting plants, such as from the cold, as well as methods of supplying nutrients or reducing and / or preventing the growth of weeds, all using the foams of the invention.

A clathrate of 1-methylcyclopropene with α-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.

A clathrate of 1-methylcyclopropene with α-cyclodextrin, obtained as a solid particulate product, is modified by comminuting, classifying, or both to obtain a modified particulate. When subjected to identical atmospheric disgorgement conditions of humidity and temperature, identical masses of the modified and unmodified particulates exhibit different rates of 1-methylcyclopropene disgorgement. Specifically, we have found that a smaller mean particle size is inversely related to a greater rate of 1-methylcyclopropene release.

The present application relates to an aqueous mixture comprising a superabsorbent-based nanocomposite for use as an agricultural foliar coating or foliar fertilizer, its production method and use. The nanocomposite comprises a polymer in which one or more water soluble and ionizable monomers are graft copolymerized onto one or more biopolymers and / or copolymerized with one or more biodegradable polymers; a combined amount of the one or more biopolymers and one or more biodegradable polymers is within the range between 5 % wt. and 50 % wt. on the basis of a dry weight of the nanocomposite; the aqueous mixture comprising the nanocomposite at an amount within the range between 0.5 % wt. and 5.0 % wt. on the basis of the total weight of the mixture.

The application belongs to the field of fresh-cut flower preservation technology, and particularly relates to a fresh-cut Chinese rose flower preservative and application thereof. The preservative solution comprises the following components: 10-30 g / L of sucrose, 100-150 mg / L of potassium nitrate, 100-150 mg / L of citric acid, 50-100 mg / L of calcium chloride, 10-50 mg of chlorogenic acid, 10-50 mg of salicylic acid, 100-150 mg / L of 8-hydroxyquinoline and 10-50 mg / L of melatonin. The effective components in the fresh-cut Chinese rose flower preservative interact with each other, can not only delay the aging and bent stem process of the fresh-cut Chinese rose flower, but also improve the brightness of the fresh-cut Chinese rose flower, and greatly improve the ornamental value of the fresh-cut Chinese rose flower.

An oil-ester composition is shown and described herein. The oil-ester composition is suitable as a rainfastening agent for application to an agricultural substrate. The oil-ester composition may be employed in conjunction with agrochemicals to apply agrochemicals to an agricultural substrate. The oil-ester composition exhibits excellent rainfastness to prevent significant run off of an agrochemical upon exposure to water after application to a substrate.

The application discloses an anti-freezing protective agent for endangered seed ultra-low temperature preservation and a preparation and application method thereof, and relates to the technical field of biological resource preservation. The anti-freezing protective agent is composed of a star-shaped copolymer, a transmembrane coordinator, an intracellular stable nucleus and a buffer solution, and forms a biomimetic multi-layer protection system. The preparation method comprises synthesizing each component and preparing a working solution. In application, two-step penetration loading, programmed cooling and rapid thawing are used to realize intracellular and extracellular synergistic vitrification. The application provides an ultra-low temperature preservation solution method which is specially used for endangered seeds and can systematically maintain the integrity of cell structure, in view of the applicability limitation and lack of systematic cell protection of the prior art.

The application discloses a flower cut flower composite preservative solution and application thereof, and belongs to the technical field of flower preservation. The flower cut flower composite preservative solution is prepared by compounding nano-silver, aluminum sulfate and boric acid, and the specific formula is as follows: 20 g / L Suc+3.7 mg / L NS+166.3 mg / L Al2(SO4)3+117.7 mg / L H3BO3. Traditional cut flower preservative solutions are divided into three types, namely pretreatment solution, flower accelerating solution and bottle insertion solution, and the single pertinence and complicated use method are improved, the preservative solution is convenient to use, the bottle insertion life of cut rose varieties is improved, and the flower opening diameter of cut rose flowers and the bottle insertion life are increased.

The present disclosure provides non-foamed and foamed hydrogels with enhanced mechanical properties, elasticity, biocompatibility and flexibility, and methods of making and using them for agricultural and medical uses. The present disclosure particularly provides compositions and formulations of hydrogels and their foams comprising a polymer, which can be useful as a new modality of crop protection and productivity.

Provided is a method, for producing a dry flower, by which the shape, natural hue, texture, and the like can be maintained for a long period of time at a level close to those of a fresh flower. The present invention pertains to a method for producing a dry flower, the method comprising a step for immersing the roots of a flowering plant body in a container filled with an aqueous polyethylene glycol solution, and radiating ultrasonic waves onto the roots so as to cause the aqueous polyethylene glycol solution to permeate the flowering plant body.

The application relates to the technical field of germplasm resource protection, and particularly relates to a method for recovering Acer truncatum Bunge seeds and application. The recovery method comprises the following steps: using a thawing device to gradient-thaw the ultra-low-temperature-preserved Acer truncatum Bunge seeds, to obtain thawed seeds; the transport time of the gradient-thawing is less than or equal to 5 min; using a composite washing liquid to wash the thawed seeds, to obtain sterile seeds; using a repair culture medium to culture the sterile seeds in a dark environment, to obtain primary recovery seeds; using a basic culture medium to culture the primary recovery seeds, to complete the recovery of the Acer truncatum Bunge seeds; the thawing device comprises a base, a thawing part, a transport part and a fixing frame; the thawing part comprises a thawing partition plate, a first thawing groove, a second thawing groove, a constant-temperature tube, an isolation plate and the fixing frame; the transport part comprises a screw rod, a threaded sliding block, an extension rod, a transport fixing rod and a transport connecting block. The recovery method realizes a relatively high recovery survival rate of the Acer truncatum Bunge seeds by means of the precise temperature control core of the gradient thawing, in combination with the device structure design, the matching processing steps and the repair strategy.

The application discloses a preservative for flower residues and application thereof, and the preservative is composed of natamycin, epsilon-polylysine hydrochloride and potassium sorbate. By performing metagenome sequencing on mildewed flower residues, dominant bacteria causing mildewing and corruption of the flower residues are identified, and the bacteria are separated and purified, thereby obtaining three strains of Penicillium expansum, Penicillium arizonense and Penicillium roqueforti, and two kinds of bacteria of Bacillus subtilis and Raoultella aquatilis. In view of the above-mentioned molds and bacteria, the preservative is selected in a targeted manner, the inhibiting effect of the preservative on the purified bacteria is determined, thereby screening preservative types with good inhibiting effect and small use amount, and then the optimal compound preservative formula is determined through response surface optimization, that is, natamycin 0.001 g / kg, epsilon-polylysine hydrochloride 0.12 g / kg and potassium sorbate 0.166 g / kg. The preservative effect of the compound preservative is verified, and it is found that the compound preservative can obviously inhibit the growth of molds and bacteria in the flower residues.