138 results about "Allyl isothiocyanate" patented technology

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.

An absorbent composition of matter acts as a carrier for an active ingredient. The active ingredient is gradually released by the carrier in a controlled manner, which is compatible with the environment and current tendencies towards the use of organic and biodegradable products. The carrier is characterized as being particles obtained from the milling, separation, air wash and classification of the different fractions obtained from corncobs. The active ingredient is, for example, an essential oil, such as garlic oil or extract that may be combined with other essential oils for a synergistic effect that results in an improved insecticide / fungicide that is natural and contains no chemical additives. Alternatively, an artificially obtained substitute, for example, allyl isothiocyanate (AITC), can be used as a substitute for mustard seed oil.

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 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 discloses a bactericide containing a mustard seed extract. The bactericide is prepared from the following active ingredients in parts by weight: 10-50 parts of mustard seed extract, 5-20 parts of eucalyptus oil, 10-50 parts of anhydrous alcohol, 3-10 parts of carboxymethyl cellulose, 10-25 parts of emulsifier, and 2-15 parts of suspending agents, wherein the mustard seed extract is prepared by the following steps: soaking black mustard seeds and yellow mustard seed into an ethanol water solution according to certain proportion, placing the soaked mustard seed extract into the ethanol water solution and ether mixed solution, performing ultrasonic treatment and heating and distilling to obtain the mustard seed extract. The bactericide contains multiple effective constituents contained in the mustard seeds, such as allyl isosulfocyanate, and other small-molecular phenols and esters such as methyl ester and butyl ester, and the bactericide has more broad-spectrum bactericidal effect and can be effectively applied to sterilization of crops or soil.