78 results about "Allyl thiocyanate" patented technology

The invention relates to an antibacterial deoxidizing double-effect food preservative, which is formed by combining a deoxidizer component with a bacteriostat component, wherein the deoxidizer component accounts for 60-90 percent, and the bacteriostat component accounts for 10-40 percent. The bacteriostat component comprises an adsorption carrier and an antibacterial solution. The adsorption carrier comprises salep, silicon dioxide, vermiculite, diatomaceous earth, zeolite, bentonite, fiber, etc. The antibacterial solution comprises one of or the composite mixture of edible alcohol and propylene glycol. Antibacterial synergist comprises allyl isothiocyanate, allicin, cinnamic aldehyde, cinnamic acid, carvacrol, eugenol, thymol, citral, etc. The antistaling agent integrates double protection functions of absorbing oxygen, sterilizing and inhibiting bacteria, which is remarkable in preservation effect and wide in application range.

Chemical compositions having superior nematicidal properties are formulated. The compositions contain one or more selected aldehydes as the major component and one or more aliphatic or cyclic isothiocyanates as a minor component. Preferred mixtures contain furfural and one or both of methyl isothiocyanate and allyl isothiocyanate. Plant-parasitic nematodes are controlled by contacting the nematodes with the nematicidal compositions, by, for example, applying the compositions to soil or other plant growth media containing the nematodes.

The invention discloses a gentle type yellow mustard sauce easy to smear and a preparation method thereof, and belongs to the fruit and vegetable food processing technical field. The product is prepared through activation, preliminary crushing, superfine grinding, heating dissolving, stirring, fermentation, compounding, ultrasonic emulsification and sterilization. Yellow mustard seeds are subjected to low-temperature crushing, so that myrosase activity is protected, enzyme inactivation is avoided from being caused by high temperature, allyl isothiocyanate is fully generated from glucosinolate in the mustard seeds, and thus the production of other bitter substances is reduced. With addition of a right amount of soybean protein, the stability of allyl isothiocyanate hydrolyzed from the mustard powder is improved, and main flavor substance isothiocyanates are not easy to volatilize. With addition of sorbitol, the water activity of the yellow mustard sauce is reduced, hydrolysis of allyl isothiocyanate is inhibited, and the flavor of the yellow mustard sauce is extended. Beta-cyclodextrin is added for embedding allyl isothiocyanate, so that the product is mellower in taste, tastes gentle and does not produce stimulation of nose choking, and the acceptable degree of the product is increased. Intermittent ultrasonic emulsification homogenization makes the yellow mustard sauce be more homogenous and have better smearing property, and flexible sterilization is adopted at a later period so as to better retain the flavor of the product.

The invention discloses a preparation method of 2-chloroallyl isothiocyanate. The method includes: taking 2, 3-dichloropropene and sodium thiocyanate as reaction raw materials, in the presence of a solvent, replacing chloride ions with thiocyanate radicals to generate allyl thiocyanate, and then carrying out rearrangement reaction on allyl thiocyanate to generate 2-chloroallyl isothiocyanate; at the end of the reaction, conducting cooling, standing and layering on the material to obtain a 2-chloroallyl isothiocyanate crude product; and subjecting the 2-chloroallyl isothiocyanate crude product to dewatering treatment and refining, thus obtaining the2-chloroallyl isothiocyanate product. The method provided by the invention enables smooth and thorough nucleophilic substitution and rearrangement, and can achieve high yield.

The invention provides a composition of aromatic isothiocyanate and allyl isothiocyanate, and the weight ratio of the two is 1:9-9:1. The invention further provides an application of the composition in preparation of pesticide fumigants for controlling soil-borne pathogens and soil nematodes. The composition has the advantages that the composition of the aromatic isothiocyanate and the allyl isothiocyanate takes the allyl isothiocyanate as a main active ingredient and takes the aromatic isothiocyanate as a synergistic ingredient, and can prolong the action time of a medicament, improve the control effect, realize the significant synergy, simultaneously reduce the dosage of the medicament, reduce the environmental pollution, be more environmentally friendly and be safe to people and animals.

The invention relates to the technical field of biopesticides, and particularly discloses a biological fumigation synergistic composition, a safe long-acting biological fumigation agent and application, the biological fumigation synergistic composition is prepared from raw materials including allyl isothiocyanate and a synergist, the weight ratio of allyl isothiocyanate to synergist is (1.5-99): 1, the synergist is one or more of eucalyptol, ethylicin and sec-butyl acetate, and the synergist is added into the allyl isothiocyanate so that the pesticide effect of the allyl isothiocyanate is improved, and the biological fumigant has good use effect and safety. Meanwhile, the biological fumigant is prepared into a complexing agent, a soluble concentrate, an oiling agent, an emulsifiable concentrate preparation, a microcapsule suspending agent and the like so that the biological fumigant can be selected according to different occasions and has good stability and persistence.

The invention relates to a use of 3h-1,2-dithiole-3-thione, anethole dithiolethione, sulforaphane, phenethyl isothiocyanate, 6-methyl-sulphinyl)hexyl isothiocyanate and allyl isothiocyanate and derivatives thereof for treating whitening of the hair and combination thereof. At least one compound selected from among 3H-1,2-dithiole-3-thione, anethole dithiolethione, sulforaphane, phenethyl isothiocyanate, 6-(methylsulfinyl)hexyl isothiocyanate and allyl isothiocyanate and derivatives and mixtures thereof, and admixtures thereof with other active agents selected from among active agents for combating desquamative conditions of the scalp, plant extracts having propigmenting activity and active agents that slow hair loss and / or promote hair regrowth, are useful for preventing and / or limiting and / or stopping the development of canities.

The present invention discloses a diamondback moth attractant, which aims at providing an attractant with good attractive effect on male moth and female moth. The present invention contains diamondback moth sex pheromone, host-plant volatile substance and plant oil with the mass ratio of 1:800 to 8000:180; the host-plant volatile substance contains cis-3-vinyl alcohol acetate, cis-3- vinyl alcohol, trans-2-hexene aldehyde and allyl isothiocyanate with the volume ratio of 1:1:1:1; the diamondback moth sex pheromone is formed by mixing cis-11-hexadecane aldehyde, cis-11-hexadecane acetate and cis-11-hexadecane enol according to the mass ratio of 7:3:1. The optimal component of the diamondback moth attractant contains diamondback moth sex pheromone, host-plant volatile substance and plant oil with the mass ratio of 1:4000 to 8000:180. The attractant of the present invention can be used for insect condition prediction as well as mass trap and kill of diamondback moth.

The invention provides a chili planting method capable of reducing the influence of continuous cropping obstacles. The method comprises the following steps: dripping diluted 20% allyl isothiocyanate emulsion in water on the soil to be planted with chilies according to the application amount of 7.0-11.0 L / 667m<2> 3-5 days before chili planting. Test shows, comparing with a control group, the methoddrips diluted the 20% allyl isothiocyanate emulsion in water on the soil to be planted with chilies according to the application amount of 7.0-11.0 L / 667m<2>, and the method is beneficial to growth of chili plants, improvement of photosynthesis in the chili growth process, improvement of soil enzyme activity and improvement of chili planting soil microbial diversity, thereby being beneficial to reduction of chili continuous cropping obstacle influence, prevention and control of chili diseases and insect pests, and improvement of chili yield and quality.