21 results about "Allyl thiocyanate" patented technology

The invention discloses a polymer composite separator for a lead-acid storage battery and a preparation method thereof, and belongs to the technical field of separator preparation, the polymer composite separator comprises the following raw materials by weight: 40-55 parts of ultra-high molecular weight polyethylene, 0.5-1 part of an initiator, 0.5-1.5 parts of sodium allyl thioglutamate, 105-115 parts of silicon dioxide, 10-20 parts of alkyl succinic anhydride modified cyclodextrin, and 180-260 parts of filling oil; the preparation raw materials of the sodium allyl thioglutamate comprise glutamic acid and allyl isothiocyanate, the sodium allyl thioglutamate and the alkyl succinic anhydride modified cyclodextrin are introduced into the preparation raw materials of a traditional PE partition plate, and finally the prepared polymer composite partition plate for the lead-acid storage battery has high porosity and low resistivity; and the anti-oxidation performance is excellent, the puncture-resistant strength is high, and the development of the lead-acid storage battery industry towards the direction of high energy density and long cycle life is facilitated.

This invention relates to the field of grain storage technology, and in particular to a natural plant essential oil insecticide composition, its preparation method, and its application. The natural plant essential oil insecticide composition comprises a main active ingredient and co-active ingredients. The main active ingredient includes cinnamaldehyde, allyl isothiocyanate, and cuminaldehyde. The co-active ingredients include 1,8-cineole, β-phellandrene, γ-terpinene, p-cymene, eugenol, α-pinene, linalool, and limonene. By volume percentage, the insecticide composition contains: cinnamaldehyde 15-40%, allyl isothiocyanate 20-40%, and cuminaldehyde 0.5-16.5%. The insecticide composition provided by this invention is made from natural plant essential oils, is stable, safe, environmentally friendly, does not pollute grains, and has an aromatic odor. It has a strong insecticidal effect on pests such as rice weevils in grains and has good application prospects in the field of grain storage.

The present disclosure relates to compositions and related apparatuses that provide effective microbial inhibiting headspace concentrations of allyl isothiocyanate, citral, thymol, linalool, terpineol, eugenol, or a combination of any two or more thereof.

The present invention addresses the problem of providing technology that can reduce off-flavors derived from free medium-chain fatty acids in aqueous-phase-containing foods containing triglycerides that contain medium-chain fatty acids as constituent fatty acids.　The present invention provides a food composition, said food composition comprising an oil phase and aqueous phase and comprising a prescribed amount of one or more components selected from the group consisting of allyl isothiocyanate, 1-hexanol, 2-heptanone, and butyric acid, wherein the oil phase contains a medium-chain fatty acid, and the medium-chain fatty acid is in the form of a triglyceride constituent fatty acid and / or in the form of a free medium-chain fatty acid.

The application discloses a kind of concrete anticorrosive coating with antibacterial and self-repairing and preparation method thereof, the anticorrosive coating includes the following weight parts of raw materials: 20-50 parts alicyclic epoxy resin, 100-150 parts vinyl resin, 30-50 parts multifunctional curing agent, 5-15 parts polyvinylamine resin, 10-25 parts silicone resin, 1-3 parts silane coupling agent, 0.5-2 parts initiator, 3-8 parts epoxy resin curing agent and 30-50 parts filler;The multifunctional curing agent includes the following weight parts of raw materials: 10-15 parts vinyl epoxy, 15-20 parts allyl thiocyanate and 5-15 parts allyl methyl disulfide.The concrete anticorrosive coating of the application contains multifunctional curing agent, which has thiocyanate group and disulfide group, the thiocyanate group can effectively inhibit the activity of escherichia coli and staphylococcus aureus, prevent escherichia coli and staphylococcus aureus from corroding the coating, and improve the service life of the anticorrosive coating;Disulfide group can undergo reversible rupture and recombination, with self-repairing ability.

The invention discloses application of allyl isothiocyanate in preparation of drugs or health-care foods for improving mental disorder, and belongs to the technical field of medicines. Allyl isothiocyanate shows rapid, convenient and efficient intervention potential for depression, emotional disorder, social difficulty, biphasic emotional fluctuation, anxiety and autism spectrum symptoms when used as a functional component of a medicine or health food. Specific experiments verify that in a depression model constructed by adopting social contusion stress, the component can obviously reverse typical depression-like behaviors such as social avoidance tendency and behavioral despair states shown by mice. In a chronic unpredictable stress induced model, allyl isothiocyanate effectively relieves anxiety and depression symptoms of mice and recovers pleasant sensation experience ability of the mice. In a drug-induced bipolar affective disorder model, the component obviously stabilizes the manic attack and depression alternating behavior of mice. In an autism model mouse, the allyl isothiocyanate effectively relieves the repetitive engraving behavior of the autism model mouse.

The application discloses a method for improving conversion rate of allyl isothiocyanate through enzymatic reaction, and the method comprises the following steps: firstly, extracting black mustard enzyme from broccoli seeds through ultrasonic extraction; secondly, flocculating the black mustard enzyme, alkyl glycoside and casein phosphopeptide under the action of sodium polyacrylate to form flocculation liquid, mixing the flocculation liquid with magnetic starch milk, and post-treating to obtain immobilized black mustard enzyme; and then, adding the immobilized black mustard enzyme into black mustard glycoside aqueous solution, and performing enzymolysis reaction under the condition of high-pressure pulse electric field to obtain allyl isothiocyanate. The application improves the conversion rate of allyl isothiocyanate through enzymatic reaction, and the product has high quality and wide application prospect.

The invention relates to the field of pest control, in particular to application and a method of allyl isothiocyanate in killing pine wood nematode disease on epidemic wood, and further, the epidemic wood is pine wood which is withered due to infection of the pine wood nematode disease. The allyl isothiocyanate recorded by the invention has a very strong fumigation effect on pine wood nematodes, can kill nematodes in infected withered and dead wood, and enables infected wood to be non-infected wood. Allyl isothiocyanate is a plant source component and is environmentally friendly, the medicament cost is very low, the medicament cost is 3 yuan or below per plant at the current market price, however, the retrieved pine value is 50-100 yuan or above per plant, and the popularization value is very high. Besides, the allyl isothiocyanate has extremely high volatility and can be quickly conducted in a withered pine trunk, generally, the allyl isothiocyanate can be conducted to all parts of the whole withered tree within about one month, and the problem that a common agent cannot be conducted in the withered tree is solved.

The invention belongs to the field of flotation reagent preparation, and particularly relates to a preparation method of allyl thiocarbamate, which comprises the following steps: carrying out substitution reaction on an aqueous solution containing water-soluble thiocyanate, allyl chloride and a phase transfer catalyst, then adding a water-insoluble organic matter, and separating to obtain an organic phase containing an allyl isothiocyanate intermediate; rOH and titanate are added into the organic phase, an addition reaction is carried out, and allyl thiocarbamate with the structure shown in the formula 1 () is prepared. Compared with the existing synthesis process of the allyl thiocarbamate, the process has the advantages that the step of removing water by reduced pressure distillation is omitted, the loss of the intermediate product allyl isothiocyanate in the distillation process is reduced, the separation time is saved, the whole preparation process is short in time and mild in condition, the yield of the allyl thiocarbamate is high, the production cost is low, and the process is more environment-friendly; the industrial production is facilitated.

The invention provides a screening method for allyl isothiocyanate tobacco suckercide matching compounds, and belongs to the technical field of tobacco suckercide, the screening method comprises the following steps: firstly, establishing a tobacco tissue culture model to obtain a standardized lateral bud material, then preparing a gradient mixed solution of allyl isothiocyanate and a to-be-screened compound, and then preparing a tobacco suckercide compound; the method comprises the following steps: accurately applying a solution to the base parts of lateral buds by adopting a trace application technology, constructing a multi-dimensional evaluation system containing the length of the lateral buds, biomass and endogenous hormone content, calculating a comprehensive bud inhibition index, and introducing a component bud inhibition contribution function to quantitatively evaluate a formula effect. A weight optimization network is constructed by combining a maximum flow minimum cut algorithm to realize automatic optimization of a weight coefficient, proportion adjustment and compound replacement are performed according to a contribution function value, and finally, a compound combination with the best bud inhibition effect and the minimum influence on stem growth is screened out by evaluating plant physiological influence and field verification tests.

The application discloses application of allyl isothiocyanate in preparation of a medicine for improving mental disorders and belongs to the technical field of medicines. The application of allyl isothiocyanate in preparation of a medicine for improving mental disorders has a rapid, convenient and efficient intervention potential for depression, emotional disorder, social difficulty, bipolar emotional fluctuation, anxiety and autism spectrum symptoms. Specific experimental verification: in a depression model constructed by using social frustration stress, the component can obviously reverse typical depression-like behaviors of the mouse, such as social avoidance tendency and behavior despair state. In a model induced by chronic unpredictable stress, allyl isothiocyanate effectively relieves anxiety and depression symptoms of the mouse and restores the hedonic experience ability of the mouse. In a medicine-induced bipolar affective disorder model, the component significantly suppresses the mania onset and depression alternating behavior of the mouse. In a mouse model of autism, allyl isothiocyanate effectively relieves the repetitive stereotyped behavior of the mouse.

The invention belongs to the field of agricultural chemistry, and discloses a chitosan-allyl isothiocyanate nano slow-release pesticide and a preparation method and application thereof.The preparation method comprises the steps that S1, a hydrophobic phase is prepared, specifically, allyl isothiocyanate is dissolved in ethyl acetate and fully stirred, and the mixture serves as the hydrophobic phase; s2, preparing a hydrophilic phase: dissolving chitosan of which the deacetylation degree is greater than or equal to 85% into an acetic acid solution of which the concentration is 1%-3% to serve as the hydrophilic phase; s3, mixing: slowly dropwise adding the hydrophobic phase into the hydrophilic phase, dropwise adding a glutaraldehyde solution with the mass concentration of 2-5% into the mixed solution, and stirring after dropwise adding; and S4, after the reaction is finished, putting the mixed solution into a dialysis bag, dialyzing for 2-3 days by using deionized water, replacing the deionized water for 3-4 times every day during the dialysis, and performing freeze drying treatment on the dialyzed solution to finally obtain the chitosan-nano allyl isothiocyanate sustained-release agent. The composition has the effects of preventing and treating wheat scab, reducing toxin accumulation, controlling toxin and reducing toxin.

To provide a filter which can keep function of a functional agent at a downstream of a filter medium for a long time.SOLUTION: A filter 11 comprises a filter medium 22 and an end plate 23. The filter medium 22 is formed to be a quadrangle sheet-like shape. The filter medium 22 is folded so that peaks and troughs are alternately and contiguously given in an extending direction of one side of the filter medium 22. The end plate 23 is fixed to an outer edge of the filter medium 22. The filter 11 includes two end plates 23. The two end plates 23 are fixed by adhesive material to the one side of the filter medium 22 and another side of the filter medium 22 in parallel with the one side thereof. Air flows in a thickness direction of the filter medium 22 of the filter 11. An antifungus agent is held in the end plate 23 in which the antifungus agent is flown to a downstream side by air passing through the filter medium 22. A plant-derived material having antibacterial function such as Fitontsidy or allyl isothiocyanate (AITC) is mixed with a sustained-release agent to be adopted as the antifungus agent.SELECTED DRAWING: Figure 3

The invention belongs to the technical field of chemical synthesis, and particularly relates to a synthesis method of a self-foaming type sulfide ore flotation collecting agent. The synthesis method comprises the following steps: by taking allyl isothiocyanate and isooctyl alcohol polyoxyethylene ether as raw materials, under the action of an esterification catalyst, carrying out a heating reflux reaction, and removing unreacted isooctyl alcohol polyoxyethylene ether under reduced pressure, so as to prepare N-allyl-O-isooctyl polyoxyethylene ether-thionocarbamate; by adopting the high-boiling-point raw material, the problems of low conversion rate and high toxic raw material residue caused by limited reaction temperature in the traditional process are solved, and the obtained product is high in purity, has excellent collecting and foaming functions, is relatively long in hydrophobic chain, and can remarkably reduce the consumption of a foaming agent and the COD value of wastewater in the flotation process; the synthesis method provided by the invention has the advantages of simple process, controllable reaction, high safety and easiness in industrial production.

This invention discloses a polymer composite separator for lead-acid batteries and its preparation method, belonging to the field of separator preparation technology. It comprises the following raw materials in parts by weight: 40-55 parts ultra-high molecular weight polyethylene, 0.5-1 parts initiator, 0.5-1.5 parts sodium allyl thioglutamate, 105-115 parts silica, 10-20 parts alkyl succinic anhydride-modified cyclodextrin, and 180-260 parts filler oil. The sodium allyl thioglutamate is prepared from glutamic acid and allyl isothiocyanate. This invention introduces sodium allyl thioglutamate and alkyl succinic anhydride-modified cyclodextrin into the traditional PE separator preparation raw materials, ultimately resulting in a polymer composite separator for lead-acid batteries with high porosity and low resistivity, excellent oxidation resistance, and high puncture resistance. This contributes to the development of the lead-acid battery industry towards high energy density and long cycle life.

The purpose of the present invention is to provide a composition that has a favorable flavor that is unique to mustard seeds, such as sweetness, and that has suppressed pungency. Firstly, the present invention relates to a method for producing an oil-based paste-like composition containing pulverized mustard seeds, the method comprising a step of pulverizing the mustard seeds in a mixture of mustard seeds and an oil or fat. Secondly, the present invention relates to an oil-based paste-like composition containing pulverized mustard seeds in which the content of allyl isothiocyanate is significantly lower than that of untreated mustard seeds, and the content of one or more of 2-methyltetrahydrofuran-3-one, 2-furfurylthiol, α-angelica lactone, 2-methyltetrahydrothiophen-3-one, tetrahydrothiophen-3-one, β-angelica lactone, γ-crotonolactone, dimethyl sulfone, furfuryl methyl sulfide, 1-furfuryl pyrrole, and guaiacol is remarkably higher than that of untreated mustard seeds.

The invention belongs to the field of agricultural chemistry, and discloses a ZIF-67-allyl isothiocyanate nano slow-release pesticide and a preparation method and application thereof.The preparation method comprises the steps that cobalt chloride is dissolved in deionized water to obtain a cobalt chloride solution, and 2-methylimidazole and magnolol are dissolved in ethyl alcohol to obtain a 2-methylimidazole solution and a magnolol solution; the preparation method comprises the following steps: adding a cobalt chloride solution into a magnolol solution, carrying out ultrasonic dispersion, adding a 2-methylimidazole solution, carrying out magnetic stirring, after the reaction is finished, continuously stirring the reaction solution to form a ZIF-67 nanocrystal material, filtering and separating to prepare a pure ZIF-67 nanocrystal, washing the ZIF-67 nanocrystal with deionized water for three times, and drying to obtain ZIF-67 powder; aITC is dissolved in ethyl acetate to obtain an AITC solution, ZIF-67 powder and the AITC solution are mixed, and the ZIF-67-allyl isothiocyanate nano slow-release pesticide is prepared through ultrasonic oscillation, stirring, vacuum filtration, cleaning and centrifugal drying. The pesticide composition has the beneficial effects that the wheat scab is accurately and efficiently prevented and controlled in a long-acting manner, and the pesticide resistance of a slow-release pesticide is reduced.

The present invention provides a composition having an action to enhance adrenomedullin gene expression. One or more embodiments of the present invention relate to a composition for enhancing adrenomedullin gene expression containing a TRPV1 agonist and a TRPA1 agonist as active ingredients. The TRPV1 agonist can be, for example, at least one selected from capsaicin, 6-shogaol, 6-gingerol and piperine. The TRPA1 agonist can be, for example, at least one selected from allyl isothiocyanate, cinnamaldehyde, diallyl disulfide, ASP7663 and oxylipin.

The application discloses a rubber processing aid composition and a preparation method thereof, and belongs to the technical field of rubber processing, and comprises the following raw materials in parts by weight: 100 parts of a rubber matrix, 20-30 parts of ionic liquid grafted hyperbranched polyester, 6-7 parts of multifunctional antioxidant, 2-4 parts of polyethylene wax, and 6-7 parts of microcrystalline wax; the multifunctional antioxidant is prepared by the reaction of selenocystamine hydrochloride and allyl isothiocyanate; and the ionic liquid grafted hyperbranched polyester is 1-carboxymethyl-3-vinylimidazole chloride salt grafted hydroxyl-terminated hyperbranched polyester. When the rubber processing aid composition is applied to a rubber material processing process, the rubber is softened, migration and precipitation resistance is good, the dispersion effect of reinforcing fillers such as carbon black or white carbon black in the rubber matrix can be effectively improved, the vulcanization process is promoted, high-performance rubber materials can be obtained, and the rubber material has good heat and oxygen aging protection effect.

The application discloses a phyllotreta striolata attractant formed by diluting verbenone and / or verbenol in n-hexane to 10 mg / L-1000 mg / L. The application also discloses a phyllotreta striolata attractant comprising active components in the following weight parts: verbenone and / or verbenol 30-100 parts, butyl isothiocyanate 0-25 parts, allyl isothiocyanate 0-25 parts. The application further discloses a phyllotreta striolata lure core. The application provides the use of verbenone and verbenol as components of the phyllotreta striolata attractant, which has the characteristics of simple operation, convenient use, high attraction efficiency, etc.; the attraction rate of the phyllotreta striolata attractant to adult phyllotreta striolata is higher than 80%, the number of adult phyllotreta striolata in the field is significantly reduced, and the insect population density is reduced; the popularization of the application will significantly reduce the use of chemical pesticides, improve the problem of serious phyllotreta striolata damage, and improve the quality of cruciferous vegetables.

The invention discloses a method for improving the conversion rate of allyl isothiocyanate through enzymatic reaction. The method comprises the following steps: firstly, ultrasonically extracting myrosinase from broccoli seeds; the myrosinase, alkyl glycoside and casein phosphopeptides are flocculated under the action of sodium polyacrylate to form a flocculating solution, the flocculating solution and the magnetic starch milk are mixed, post-treatment is performed, and the immobilized myrosinase is obtained; and then adding the immobilized myrosinase into an aqueous solution of sinigrin, and carrying out enzymolysis reaction under the condition of a high-voltage pulsed electric field to obtain allyl isothiocyanate. The conversion rate of the allyl isothiocyanate is improved through the enzymatic reaction, the product quality is high, and the application prospect is wide.