221 results about "Cyclopropene" patented technology

Coupling reactions, suitable for use in organic or aqueous media, are performed by contacting a 1,2,4,5-tetrazine with a dienophile. The dienophile may be covalently bonded to a protein, and the coupling reaction may be performed in biological media such as those containing cells or cell lysates. The reactions may be performed in the presence of primary amines, thiols, acetylenes, azides, phosphines, and products of Staudinger and/or Sharpless-Huisgen reactions Novel 3-substituted cyclopropene compounds and trans-cyclooctenes are exemplary dienophiles for these reactions.

A composition is provided that contains one or more molecular encapsulation agents within each of which is encapsulated one or more cyclopropenes and that contains one or more adjuvants selected from the group consisting of surfactants, alcohols, hydrocarbon oils, and mixtures thereof. Also provided is a method that includes the step of contacting such compositions to one or more plants or plant parts.

The present invention relates to a composition comprising a cyclopropene, for example 1-MCP, encapsulated in a cyclodextrin matrix, a hygroscopic compound, yeast and/or other enzymes involved in the production of alcohols and aldehydes from organic substrates, and, optionally an organic substrate for the enzymes. The composition of the present invention provides, under controlled conditions, the co-release of the cyclopropene, alcohols, aldehydes and carbon dioxide, which work together to improve the quality of plants during storage. Methods and commercial packages employing these compositions are also disclosed.

A composition is provided that contains one or more molecular encapsulation agents within each of which is encapsulated one or more cyclopropenes and that contains one or more non-hydrocarbon oils. Also provided is a method that includes the step of contacting such compositions to one or more plants or plant parts.

The invention discloses a fresh flower preservative, which comprises the following components in percentage by weight: 0.5 to 4.0 percent of sucrose, 0.01 to 0.05 percent of 8-hydroxyquinoline sulfate, 0.001 to 0.004 percent of 1-methyl cyclopropene, 0.0005 to 0.002 percent of gibberellin, 0.01 to 0.06 percent of calcium nitrate, 0.05 to 0.3 percent of garlic extract, 0.05 to 0.2 percent of oliveleaf extract, 0.03 to 0.15 percent of citric acid, 0.001 to 0.004 percent of 6-benzylaminopurine, and the balance of water. The invention also discloses a preparation method of the fresh flower preservative. The novel biological preservative (carnosine) is blended with the traditional additive, so that the defects of the conventional fresh flower preservative are overcome; the degradability advantage of the biological preservative is used; the fresh flower preservative is a product which is convenient to use and has good fresh keeping effect and no toxic hazard effect; and the fresh flower preservative meets the requirements of customers on spiritual civilization, and a technical scheme and a product are provided for solving the problem of difficulty in keeping flowers fresh.

A device and method for generating cyclopropene gas comprising bubbling a gas through a vessel that contains water. A cyclopropene/cyclodextrin complex is added to the water to form an aqueous suspension. Cyclopropenes are used to inhibit the ethylene response in plants and plant products, such as fruits a nd vegetables. The device of the invention may treat small volume facilities as well as very large volume storage facilities, such as warehouses and the like. The bubbled gas rapidly and completely liberates the cyclopropene gas from its cyclodextrin carrier to provide a cost effective and efficient treatment against the ethylene response in plants.

The invention discloses 1-methylcyclopropene preparation and a preparation method thereof. A porous carrier suspending in preserving liquid is included. 1-methylcyclopropene is adsorbed in the porous carrier. The preserving liquid further contains polymerization inhibitor, the mass of which is 0.0001-0.1% of the mass of the porous carrier. According to the 1-methylcyclopropene preparation provided by the invention, the 1-methylcyclopropene is adsorbed by utilizing the activated porous carrier in a liquid environment; the mass of the adsorbed 1-methylcyclopropene is above 8% of the mass of the pours carrier; furthermore, the 1-methylcyclopropene after being adsorbed is released only by being heated; and the 1-methylcyclopropene preparation is a reagent product, which is simple for preparation and low in cost, thus, the 1-methylcyclopropene is effective to preserve and release.

The invention provides a cyclopropene preservative, which is characterized by containing 0.1 to 99 mass percent of cyclopropene coating material powder, 0.1 to 98 mass percent of compound, composition or material releasing water molecules, and 0 to 98 mass percent of one or more assistants. The invention also provides the preparation method and using method of the cyclopropene preservative. The preservative is convenient for use and has a remarkable preservation effect.

The invention discloses a fresh keeping method for plum fruit, comprising the following steps: (1) immersing plum fruit in chitosan solution with a concentration ranging from 0.1g/100ml to 3.0 g/100ml at room temperature; (2) refrigerating the plum fruit immersed in step (1); (3) when entering into shelf life, keeping refrigerated plum fruit in an enclosed device, which contains 1-methyl cyclopropene gas with a concentration ranging from 0.5 mul/L to 5.0 mul/L, for 12-24 hours at room temperature; wherein, the concentration of 1-methyl cyclopropene gas is preferably in the range of from 1.0 mul/L to 2.0 mul/L. The fresh keeping method for plum fruit of the present invention has the advantages of high food health safety, simple application, easy spread, little investment but quick result, low price, broad market, notable economic and social profit etc, which is suitable for China and has great development and application value.

The cyclopropene consists of: 1-methyl cyclopropene 0.3-4 weight portions, preservative 5-40 weight portions, stabilizer 60-90 weight portions, slow releasing agent 0-20 weight portions and excipient 0-5 weight portions. The preservative is one or several of 2-aminobutane, phosphate of 2-aminobutane, hydrochloride of 2-aminobutane, sulfate of 2-aminobutane, lactate of 2-aminobutane, sodium pyrosulfite, potassium pyrosulfite, sodium bisulfite, potassium bisulfite and propyl isothiocyanate; the release controlling agent is one or several of lime, sodium bicarbonate, soda lime, reductive microcrystal alditol acid lignin polyacrylamide; and the stabilizer is one or several of cyclodextrin, rosin, silica gel and lac. The slow releaseing preservative has obvious functions of resisting rot and keeping freshness.

The invention discloses a ginkgo fruit composite preservative and a preservation method. The ginkgo fruit composite preservative comprises a film coating agent, an antibacterial agent and a fumigation agent, wherein each liter of the film coating agent comprises the following components in parts by weight: 10-15g of chitosan, 0.2-0.5g of nano-SiO2, 15-18g of glycerine and solvent, namely acetic acid in the volume concentration of 10%; each liter of the antibacterial agent comprises the following components in parts by weight: 0.1-0.5g of ginkgo exocarp ethanol extract and the solvent, namely water; each liter of the fumigation agent comprises the following gas components: 0.5-1.0mu L of 1-methyl cyclopropene and the balance of air. By using the composite preservative for treating ginkgo fruits, the mildew phenomenon of the ginkgo fruits during the storage period can be effectively inhibited, the problem of water loss of the ginkgo fruits can be simultaneously greatly reduced, the storage and preservation period of the ginkgo fruits can be prolonged to the greatest extent, the fruit hardening of the ginkgo fruits can be prevented and the occurrence of calcification phenomenon can be also prevented.

A composition is provided that contains one or more molecular encapsulation agents within each of which is encapsulated one or more cyclopropenes and that contains one or more adjuvants selected from the group consisting of surfactants, alcohols, hydrocarbon oils, non-hydrocarbon oils, and mixtures thereof. Also provided is a method that includes the step of contacting such compositions to one or more plants or plant parts.

The invention discloses a 1-methyl-3-(2-methylcyclopropane)-1-cyclopropene stable inclusion complex for keeping fruits, vegetables and flowers fresh, which is characterized in that: the inclusion complex is formed by reaction of 1-methyl-3-(2-methylcyclopropane)-1-cyclopropene and cyclodextrin. The inclusion complex is a solid fruit, vegetable and flower fresh-keeping agent material. The 1-methyl-3-(2-methylcyclopropane)-1-cyclopropene gas serving as an effective ingredient in the inclusion complex accounts for 0.001 to 4.5 weight percent of the fresh-keeping agent. The inclusion complex is mainly used for keeping the fruits, vegetables and flowers with climacteric after-ripening aging fresh, and particularly has predominant fresh-keeping effect on leaf vegetables and fruits. The inclusion complex has the advantages of high effective ingredient, difficult oxidation, convenience for use and low cost, and is easy for storage and transportation; and the preparation method is performed at normal pressure, has the advantages of simple process, safety, reliability, high product yield and low cost, and is easy for implementation.

The invention discloses a 1-methyl cyclopropenyl stable solution and preparing method in the fine chemical domain, which is characterized by the following: adopting monobasic, bibasic and polyatomic alcohol as absorbent; adding specific stabilizer to produce stable solution with 0.5-3% 1-methyl cyclopropenyl at low temperature and indoor temperature; fitting for reserving fruit and vegetable as well as flowers.

There is provided a powder composition comprising a collection of particles (I) having median particle diameter of 10 micrometers to 200 micrometers, wherein each of said particles (I) comprises

• • (a) a covering of a fatty compound having melting point of 50° C. to 110° C. and
  • (b) one or more inner particles (II) comprising one or more complex that contains a cyclopropene compound molecule or a portion of a cyclopropene compound molecule encapsulated in a molecule of a molecular encapsulating agent.

Also provided is a slurry comprising water and such a powder. Also provided is a method of contacting plants or plant parts with such a slurry.

The invention relates to a biological fermentation process for improving the protein content of cottonseed meal and detoxicating the cottonseed meal, which is characterized in that: the byproduct of cottonseed subjected to oil extraction, namely the cottonseed meal is taken as a raw material; the cottonseed meal is processed by adopting microbial fermentation technology; a cottonseed meal mixed fermentation process is adopted; strains are combined, cell walls of a plant are broken and free gossypol and anti-nutritional factors contained in the cottonseed meal, such as cyclopropene fatty acid, phytic acid, tannin, non-starch polysaccharide and non-glycan are modified, transferred, recombinated, purified and detoxicated; and proteins in the cottonseed meal which have large molecular weight and are difficult to absorb by animals are degraded into small active peptides by a biological enzymolysis method, and probiotics, digestive enzymes, lactic acid and various bioactive factors in the product are kept. The biological fermentation process can greatly improve the protein content of the cottonseed meal and effectively achieve the detoxicating effect.

This invention is based on unexpected synergistic effect of a cyclopropene compound and a modified atmosphere package to extend shelf life and/or storage for avocados. Provided is a method of storing avocados comprising the step of exposing avocados to an atmosphere that contains a cyclopropene compound, wherein either (a) the avocados are in a modified-atmosphere package during exposure to the cyclopropene compound, or (b) the avocados are placed into a modified-atmosphere package after exposure to the cyclopropene compound, and the avocados remain in the modified atmosphere package for at least two hours. In some embodiments, the modified-atmosphere package is constructed so that the transmission rate of oxygen for the entire package is from 200 to 40,000 cubic centimeters per day per kilogram of avocados.

A composition comprising (a) a meltable solid matrix comprising (i) one or more solid hydrophobic substance, and (ii) one or more solid hydrophilic substance, and (b) distributed in said matrix, one or more encapsulation complex of a volatile cyclopropene compound encapsulated in a molecular encapsulation agent. Also provided is a method of treating plants or plant parts comprising placing said plants or plant parts and the composition of claim 1 into a container and allowing said plants or plant parts and said composition of claim 1 to remain together in said container for 1 day or longer.