196 results about "1-Methylcyclopropene" patented technology

The invention discloses a storage and prevention two-stage compound pretreatment method for apples and pears, which comprises the following steps: firstly, performing fumigation treatment on the picked apples and pears at normal temperature by using 1-methylcycloproene, wherein the content of 1-methylcycloproene is between 500 and 1,000nL L-1 and the fumigation time is between 18 and 24 hours; then, soaking the apples and the pears in 3 to 6 percent aqueous solution of CaCl2 for 3 to 5 minutes; and taking the apples and the pears out, drying the apples and the pears, and refrigerating the apples and the pears by the conventional method. The method can effectively prevent surfaces of the apples and the pears from browning, preserve the senescence of fruit, prevent the flesh of fruit from softening and preserve the nutritional quality, particularly can make contents of hardness, titratable acid, ascorbic acid and Vc of the fruit in a high level index in the later period of storing, is obviously superior to the effect of single treatment, and makes the surface brown index of bagged Huangguan pears declined by 71.6 percent.

The invention discloses a combined refreshing method for prolonging the shelf life of a fresh vegetable lotus seed, belonging to the technical field of fruit and vegetable refreshing and storing. The fresh lotus seed has the characteristics of difficulty in refreshing and storing and acceleration for the deterioration of quality and taste. The high-quality raw materials can be obtained by controlling the harvesting maturity and harvesting in due time according to the unified standard. By adopting vacuum pre-cooling, the field respiration heat of the fresh lotus seed can be quickly eliminated and the quality loss can be prevented. According to the invention, by using 1-methylcyclopropene (1-MCP) to fumigate on the fresh lotus see at lower temperature or room temperature, the ageing and the late maturity of the lotus seed can retarded; by pressurizing the mixed gas of argon gas and xenon gas or the mixed gas of argon gas and krypton gas at the pressure of 20MPa for one hour to carry out the water structured treatment for the fresh lotus seed, the activity of water molecules and the activities of various enzymes in the fresh lotus seed can be reduced and the metabolic activities of the lotus seed can be inhibited. Meanwhile, by combining with modified atmosphere packaging (MAP), the fresh lotus seed is cold stored at the temperature of 2-4DEG C so as to well maintain the quality and the taste of the lotus seed. The lotus seed can be refreshed for 15-16 days; and the shelf life of the lotus seed is 11-13 days longer than that of the untreated lotus seed stored at normal temperature and is 8-10 days longer than that of untreated lotus which is cold stored .

The invention discloses a fresh-keeping method for muskmelons; the method comprises the following specific steps: 1), selecting medium well-done muskmelons, picking, performing an overshadow treatment on the picked muskmelons by using a reflecting film; 2), performing 1-MCP (1-methylcyclopropene) fumigation on the muskmelons; 3), soaking the muskmelons in water; 4), blowing to dry the surfaces of the muskmelons; 5), spraying a fruit wax containing a fresh-keeping agent on the muskmelons; 6), drying the surfaces of the muskmelons; 7), putting the muskmelons in a refrigerator in which the temperature is 0 DEG C to 1 DEC C and the relative humidity is 75% to 85%, and pre-refrigerating for 1-2 days; 6), packaging each muskmelon by a micro-pore modified atmosphere fresh-keeping film; and 9), suspending the packaged muskmelons in the refrigerator in which the temperature is 0 DEG C to 1 DEC C and the relative humidity is 75% to 85%. The fresh-keeping method for the muskmelons is reliable and effective, and is low in pollution and side effect.

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 discloses a crisp-keeping and freshness-keeping method for persimmons. The crisp-keeping and freshness-keeping method includes following steps: 1) building a closed plastic large tent; 2) fumigating: placing the sorted persimmons into the plastic large tent, stacking the persimmons generally, successively rapidly placing 1- methylcyclopropene, secondary butyl amine and tecto into the plastic large tent, immediately sealing the plastic large tent, and fumigating for 10-48 hours; 3) keeping freshness and packaging: sleeving foaming PE (polyethylene) net sleeves on single fumigated persimmons one by one, and filling the persimmons into a packaging box lined with a polyethylene freshness-keeping bag with the thickness ranging from 0.02mm to 0.04mm; 4) pre-cooling: pre-cooling the packaging box for 20-36 hours in an environment with the temperature ranging from minus 1 DEG C to 0 DEG C, and leading an opening of the polyethylene freshness-keeping bag to be opened completely in a pre-cooling process; 5) storing; and 6) delivering from a warehouse and removing puckery. By the aid of the crisp-keeping and freshness-keeping method, the storage period of the persimmons is prolonged to 4 months to 8 months, a crisp-keeping and freshness-keeping effect is good, and the method can meet the requirement that the persimmons produced at a production season can be sold and supplied all the year round.

The invention provides a combined fruit and vegetable fresh-keeping pad and a preparation method and application thereof. The combined fruit and vegetable fresh-keeping pad comprises a non-woven cloth layer, a 1-methylcyclopropene release layer, a first thin film layer, a bi-component gas release layer and a second thin film layer in sequence. The 1-methylcyclopropene release layer is formed by fixing 1-methylcyclopropene powder on the first thin film layer. The bi-component gas release layer is formed by fixing a sulfite, chlorate and slow-release agent mixture to the second thin film layer. The air permeation volume of the first thin film layer is 1500-2000 cm<3>/m<2>.d.pa, and the air permeation volume of the second thin film layer is 200-500 cm<3>/m<2>.d.pa. The combined fruit and vegetable fresh-keeping pad can prevent quality deterioration caused by senescence or rottenness of stems or fruits, prolong the shelf life of picked grapes and reduce the phytotoxicity of SO2 gas. The preparation method of the combined fruit and vegetable fresh-keeping pad is simple, easy to implement and low in cost.

Ethylene response manipulation formulations are disclosed. The formulations comprise at least one ethylene response manipulation agent which is at least partially encapsulated, a polyol liquid medium, or a hydrogel medium, or a combination of polyol and hydrogel medium. A preferred ethylene response manipulation agent is 1-methylcyclopropene.

The invention discloses a peach preserving method and provides a fruit preservative for treating picked peaches. The fruit preservative comprises 17.4 grams of areca-nut, 8.5 grams of clove, 25.7 grams of cinnamon, 42.9 grams of green tea, 22.9 grams of officinal magnolia bark, 21.5 grams of red paeony root, 20.6 grams of raw sessile stemona root, 15 grams of calcium propionate, 15 grams of calcium chloride and 1.5 grams of salicylic acid. Picked medium-mature peaches are treated by the preservative first, then steamed with 1-methylcyclopentene at a using concentration of 5ppm and 0.3 percent of chlorine dioxide at 8 to 10 DEG C for 24 hours and finally refrigerated at 0 to 1 DEG C; and after moved out from a storehouse, the refrigerated peaches are stored on goods shelves at the temperature of 8 to 10 DEG C. The preservation method of the invention is safe, efficient, convenient and quick, can maintain the quality of the peaches and effectively reduce the rotting rate of peaches.

The invention discloses 1-methylcyclopropene preservative paper which comprises a base paper layer and a preservative layer, wherein the surface of the base paper layer is coated with the preservative layer. The base paper layer is mainly prepared from bamboo pulp and hardwood pulp in a mixed manner, and main components of the preservative layer comprise 1-methylcyclopropene inclusion compounds, polyethylene glycol hot melt glue, water absorbing agents, dispersing agents and slow release agents. The invention further discloses a preparation method of the 1-methylcyclopropene preservative paper. The preparation method includes the steps: preparing the 1-methylcyclopropene inclusion compounds; formulating paint; preparing the base paper layer; coating; drying. The 1-methylcyclopropene preservative paper is good in preservation effect and environmental compatibility, convenient to use and stable in effect and has excellent applicability in the storage and transportation process.

The invention discloses a fresh keeping method of peaches. The fresh keeping method of peaches has the advantages of simple process, no medicine residual, safety, no toxicity, harmlessness to human bodies, convenient management, no need of large devices, good fresh keeping effect and very good application prospect. The method comprises the following steps: picking peaches, directly carrying out ultraviolet irradiation, fumigating by using 1-methylcyclopropylene (1-MCP), carrying out hot shock by using a magnesium chloride solution, immersing the peaches in a 1-3DEG C flowing ozone solution, carrying out ultrasonic and refluxing extraction on bioactive components of Horseweed Herb, and adding the obtained extract to a chitosan solution to realize high sterilization ability with small amount. An independent packaging bag has the characteristics of antibiosis, bacteriostasis, fineness, softness, waterproof property, airtight property, and facilitation of transportation and nutrient reservation. The method allows the rotting rate to only be 5.3%, the weight loss rate to only be 4.7% and the hardness reduction rate to only be 5.6% after peaches treated through the method are stored for 30d, and has a good fresh keeping effect.

The invention discloses a preservation method for Chinese mahogany sprouts. The preservation method comprises the following steps: fumigation treatment: 1-methylcyclopropene is adopted to perform fumigation treatment on the Chinese mahogany sprouts, and the Chinese mahogany sprouts are subject to enclosing treatment at room temperature for 12-16 h; modified atmosphere packaging: the Chinese mahogany sprouts after fumigation treatment are packaged into preservation bags, wherein the carbon dioxide concentration is 5%-10% and the oxygen concentration is 10%-15% during the preservation period; refrigeration: the packaged Chinese mahogany sprouts are subject to storage at a specific temperature, wherein the storage temperature is 2-5 DEG C, and the relative humidity is higher than 90%. The preservation method combines three preservation functions of fumigation treatment, modified atmosphere packaging, and refrigeration, so as to obviously improve the preservation effect on the Chinese mahogany sprouts; the preservation period can be prolonged by 1 month in terms of the Chinese mahogany sprouts which are susceptible to decomposition; the unique scents of the Chinese mahogany sprouts are maintained, the color and the structure are not obviously changed, the decomposition rate is controlled within 5%, the weight loss rate is less than 3%, the preservation effect is obvious, so that the method has an obvious market popularization prospect.

The invention relates to the technical field of pharmaceutical preparations, and particularly discloses a plant growth regulator-1-methyl propylene effervescent granule/or effervescent tablet and a preparation method thereof. The 1-methyl propylene effervescent granule/or effervescent tablet is prepared from the following raw materials in percentage by mass: 0.01%-20% of 1-methylcyclopropene, 0.5%-15% of a dispersing agent, 0.5%-8% of a wetting agent, 4%-60% of a disintegrating agent, 0-10% of a binder and a filler; and the preparation method comprises the following steps: mixing various raw materials for forming the 1-methyl propylene effervescent granule/or effervescent tablet; and carrying out superfine/airflow smashing, pelletizing, drying, arranging/tabletting, selecting and detecting, so as to obtain the plant growth regulator-1-methyl propylene effervescent granule/or effervescent tablet. The 1-methyl propylene effervescent granule/or effervescent tablet provided by the invention is safe to environment, people, livestock and other beneficial organisms and accurate to meter; a pesticide hazard is not easy to generate; compared with an ordinary encapsulated granule, the 1-methyl propylene effervescent granule/or effervescent tablet is free of dust, high in granular disintegration speed, convenient to use, good in storage stability, and simple in preparation technology and is suitable for industrialized production and large-area popularization and application in the field of preservation of fruits, vegetables and flowers; and effective components can be fully released within the stipulated time during use.

The invention discloses a method for keeping peaches fresh, which comprises the following steps of: (1) picking peaches, soaking the peaches in aqueous solution of CaCl2, draining water on the peaches and putting the peaches in a plastic basket; (2) fumigating the peaches by 1-methylcyclopropene gas for 16 to 20 hours; (3) putting the peaches in polyvinyl chloride preservative film bags, placing the polyvinyl chloride preservative films in an external packing box, cooling the open external packing box to 7 to 9 DEG C, gradually lowering the temperature to -0.5 to -1.0 DEG C within 60 to 72 hours and keeping the temperature for 12 to 24 hours; (4) adding fruit and vegetable antiseptic and fresh-keeping agent to the external packing box, sealing the polyvinyl chloride preservative film bags, enclosing the external packing box and storing the peaches in a storehouse at a temperature of -0.5 to -1.0 DEG C for 40 to 90 days; and (5) rising the temperature to 5 to 10 DEG C before removing the external packing box from the storehouse, keeping the temperature for 12 to 24 hours and delivering the external packing box from the storehouse after rising the temperature to a normal temperature. The method of the invention prolongs the freshness date of the peaches and achieves high storage quality. Moreover, the method is easy, convenient for popularization and suitable for large scale production and use.

The invention discloses a method for storing fruits and keeping fruits fresh through pyroligneous acid and 1-methylcyclopropene combination. According to the method, a pyroligneous acid solution with certain concentration is uniformly sprayed to the surface of each fruit, and then, the fruits can be picked in the next day after the surfaces are dried; when in picking, the fruits are sorted strictly and then stored into a transfer box; gloves need to be worn to reduce the contact with the fruits, and the fruits are handled with care; after picking, the fruits are transported to a pre-cooling storage (0-2 DEG C) through a refrigerator car to be pre-cooled for 12 hours and then transferred into boxes in which PE preservative films are lined; the fruits per 3kg are stored into one box; one 1-MCP preservative bag is placed into each box and then the box is immediately sealed; then the boxes are stacked and stored at the temperature of 0+/-1 DEG C. With the adoption of the method for keeping fresh, grapes can be kept fresh for 60 days, the rotting rate is 5.72%, and moreover, the fruit stems are green, and the fruits are sour, sweet and tasty and are fresh like being picked just now; therefore, the supply period of the fruits can be prolonged on the premise that the fruit quality is ensured.

The invention discloses a refrigerating method of Fuji apples based on 1-methylcyclopropene. Fuji apples with suitable ripening degree are fumigated by the 1-methylcyclopropene after harvested, the treatment time is scientifically determined according to the treatment temperature and suitable temperature and humidity and gas components are controlled after the treatment. The main technology is as follows: the gas components in storage duration environment is controlled, wherein the concentration of CO2 is controlled to be less than 1 percent by adopting a ventilating mode during storage in a cold air store; and the concentration of CO2 is 0.9-1.0 percent when the concentration of O2 is 3-4 percent and the concentration of CO2 is 1.0-1.1 percent when the concentration of O2 is 4-5 percent during storage in an air conditioned cold store. After stored by the technology for 10 mouths, the Fuji apples have high rigidity, good flavor and mouthfeel without carbon dioxide damage; and the superficial scald occurrence rate is very low, even the superficial scald can not occur, thereby prolonging the shelf life of the Fuji applies out of the storage.

The invention discloses a storage and preservation method of apples. The storage and preservation method of apples comprises the steps: packaging each picked fresh fruit with single-layer white preservative paper, externally wrapping the fruits with foam net covers, and filling the fruits into plastic circulation boxes with internally lined preservative bags; transporting the plastic circulation boxes with fruits at ordinary temperature by using cold-accumulation insulation boxes to a storage yard for carrying out subsequent treatment, and controlling the temperature in the insulation boxes at10-15 DEG C; putting the plastic circulation boxes with the apple fruits into a closed plastic pavilion or sealed warehouse, and carrying out fumigating treatment on the fruits with 1-methylcyclopropene; putting the apple fruits after fumigating treatment into a 5-10 DEG C precooling room for carrying out cold acclimation for 48-72 hours; and after precooling, putting a potassium permanganate high-efficiency ethylene remover into the preservative bags internally lined in the circulation boxes, sealing the preservative bags, and putting the circulation boxes into a 0-1.0 DEG C constant temperature refrigerated warehouse for carrying out modified atmosphere storage, wherein the relative humidity is 90%-95%, the oxygen concentration in the preservative bags is controlled at 14%-16%, the carbon dioxide concentration is controlled at 2%-3%, and the ethylene concentration is controlled below 30mu L/L.

This invention is related to use of a volatile antimicrobial compound against pathogens affecting meats, plants, or plant parts. The volatile antimicrobial compounds provided include certain oxaborole compounds, for example benzoxaboroles. Delivery systems are provided to take advantage of the volatile nature of these antimicrobial compounds. Also combinations with a volatile plant growth regulator, for example 1-methylcyclopropene, are disclosed.

The invention relates to the application of lithium diisopropylamide which is an organic alkali in preparing 1-methylcyclopropene; the application of the lithium diisopropylamide as a catalyst to prepare the 1-methylcyclopropene well solves the technical problem that the production course of the 1-methylcyclopropene has high energy consumption, low content and high cost, simplifies the production processes, reduces the production costs and realizes high yield of 1-methylcyclopropene.

The invention relates to the technical field of preparation of plant fresh-keeping agents, and provides a preparation method and application of inclusions of 1-methylcyclopropene and derivatives thereof. The inclusion agent for preparing the inclusion compound of the present invention is a cucurbituril mixture or any single component thereof. The 1-methylcyclopropene and its derivatives can exist stably after forming an inclusion complex with cucurbituril, thereby providing a convenient method for storing and transporting these compounds that can inhibit ethylene reaction of plants. At the same time, the preparation process of the inclusion complex is simple, the cost is low, and it is convenient to use. When in use, only need to put the inclusion complex directly into water or an aqueous solution containing acid or alkali to re-release 1-methylcyclopropene and its derivatives. thing.