67 results about "Hexaldehyde" patented technology

The invention relates to a pulping method. The method comprises a coarse crushing stage, a heating and beany flavor generating stage, fine crushing stage and cooking stage, wherein in the coarse crushing stage, the liquid temperature T1 is less than or equal to 70 DEG C; preferably, a dipping stage is set before the coarse crushing stage, and the weight ratio X of the water amount to dry beans in the dipping stage is more than or equal to 2.5; preferably, the heating and beany flavor generating stage comprises a first heating stage and a second heating stage, and the liquid temperature in the first heating stage slowly rises to 75 DEG C; by setting the coarse crushing stage and controlling the liquid temperature in the coarse crushing stage to be lower than 70 DEG C, proper reaction temperature is provided for lipoxidase and unsaturated fatty acid which are released to the pulp, so that hexaldehyde is generated as much as possible and the soybean milk contains rich beany flavor; and by setting the dipping stage before the coarse crushing stage, the pulping materials can be easily crushed.

A fragrant compound or fragrant composition stable for a long period of time in an acidic hard article surface cleaning liquid adjusted so as to be acidic, particularly to pH 2.0 to 3.0 with an organic acid. One or more of fragrant compounds selected from the group consisting of 2,6-dimethyl-2-heptanol, 3,3-dimethylcyclohexyl methyl ketone, o-tert-butylcyclohexanol, α-amylcinnamic aldehyde, α-damascone, γ-octalactone, γ-nonalactone, γ-decalactone, anethole, ethyl benzoate, ethyl 2,2,6-trimethylcyclohexanecarboxylate, 2,2,6-trimethyl-1-crotonylcyclohexane, 6-acetyl-1,1,2,4,4,7-hexamethyltetrahydronaphthalene, isoamyl phenylethyl ether, methyl octin carbonate, 6,7-dihydro-1,1,2,3,3-pentamethyl-4(5H)-indanone, tricyclodecenyl acetate, undecyl aldehyde, fenchyl acetate, dihydrojasmone, cedryl methyl ether, p-cresol, hexyl aldehyde, and rosephenone are stable.

The invention discloses specific molecular markers for aspergillus flavus infection mildew of corns, peanuts and walnuts. The specific molecular markers for aspergillus flavus infection mildew of corns comprise ethyl acetate-D, and 3-hydroxybutane-2-ketone-D; the specific molecular markers for aspergillus flavus infection mildew of peanuts comprise caproic acid, 2.3-butanedione, 2-hexyl-1-alcohol-M, pentane-1-alcohol-M and hexaldehyde; and specific molecular markers for aspergillus flavus infection mildew of the walnuts comprise ethyl acetate-D, and 3-methyl-2-butyl alcohol. The method for carrying out early-stage mildew detection by utilizing the specific molecular markers for aspergillus flavus infection mildew of the corns, the peanuts and the walnuts comprises the following steps: establishing a complete GC-IMS database of the corn, the peanut and the walnut, and analyzing to obtain the specific molecular markers for aspergillus flavus infection mildew of the corn, the peanut and the walnut; and extracting corn, peanut and walnut stock samples, carrying out GC-IMS technical detection to obtain GC-IMS data of the stock samples, analyzing whether the specific molecular markers for aspergillus flavus infection mildew exist in the GC-IMS data, and judging whether the stock samples have early mildew or not.

The invention relates to a pulping method. The method comprises a coarse crushing stage, a heating and beany flavor generating stage, fine crushing stage and cooking stage, wherein in the coarse crushing stage, the liquid temperature T1 is less than or equal to 70 DEG C; preferably, a dipping stage is set before the coarse crushing stage, and the weight ratio X of the water amount to dry beans in the dipping stage is more than or equal to 2.5; preferably, the heating and beany flavor generating stage comprises a first heating stage and a second heating stage, and the liquid temperature in the first heating stage slowly rises to 75 DEG C; by setting the coarse crushing stage and controlling the liquid temperature in the coarse crushing stage to be lower than 70 DEG C, proper reaction temperature is provided for lipoxidase and unsaturated fatty acid which are released to the pulp, so that hexaldehyde is generated as much as possible and the soybean milk contains rich beany flavor; and by setting the dipping stage before the coarse crushing stage, the pulping materials can be easily crushed.

The invention discloses a gastric cancer VOC marker in saliva and its application in the preparation of gastric cancer diagnostic reagents. The marker refers to a combination of multiple or all of the following volatile organic compounds: acetaldehyde, 2-methylbutanal, Isopropanol, hexanal, n-butanol, cineole, nonanal, menthone, 2-ethylhexanol, menthol, anethole, dodecyl alcohol; The content of the gastric cancer VOC markers is used to diagnose gastric cancer. The invention provides a variety of volatile organic compounds in saliva as markers for the diagnosis of gastric cancer, and has broad application prospects in the early screening and diagnosis of gastric cancer.

Provided is an agent for suppressing the odors of polysulfide compounds. This agent for suppressing the odors of polysulfide compounds represented by formula (I) contains, as an active ingredient, atleast one selected from the group consisting of butyl 2-methylbutanoate, [alpha]-terpinene, dipentene, cis-4-heptenal, 1,4-cineol, trimethylhexyl aldehyde and (+)-limonene oxide. Formula (I): R1-[S]n-R2 (in the formula, R1 and R2 may be the same or different and each denotes a linear-chain or branched-chain alkyl or alkenyl group having 1-6 carbon atoms, and n denotes an integer between 2 and 5 inclusive).

The invention belongs to the field of food and healthcare products, and particularly relates to a rice flavour oily taste quantitative detection method and application thereof. The invention provides the rice flavour oily taste quantitative detection method. The quantitative detection method comprises a step of establishing a hexaldehyde-oily taste relationship curve by detecting the content of the hexaldehyde in rice flavour, wherein a hexaldehyde content determination method is HS-GC-MS in a process of establishing the hexaldehyde-oily taste relationship curve. The invention also provides the application of the above quantitative detection method in the field of infant or baby food and / or healthcare product quality detection. According to the technical scheme provided by the invention, the oily taste can be determined directly by determining a secondary oxidation product, namely, the hexaldehyde, of rice flavour, without extracting fat first and then determining; a sample consumption amount of small; the oily taste is convenient to detect. The technical defects that accurate quantitative detection cannot be realized by a rice flavour oily taste detection method in the prior art become the problems which need to be solved by those skilled in the field are overcome.

The invention relates to a clean production method of 2,3-octanedione, which comprises the steps of preparing a composite catalyst, preparing a Fe3+-Fe2+ redox system, preparing a product from raw materials acetaldehyde and n-hexanal, and the like. The 2,3-octanedione produced by the method has a purity of more than 98 percent, pure aroma, mild production conditions, environmental friendliness, suitability for industrialized production, and good economic benefits.

The invention relates to a children educational toy multifunctional antibacterial coating, which is composed of the following components: graphite powder, isobutyl triethoxysilane, SEBS thermoplastic elastomer, chlorothalonil, methylated amino resin, polyethylene resin, urea-formaldehyde resin, N-(cyclohexylthio)phtalimide, amino propyl triethoxysilane, glycidyl acrylate, aluminium hydroxide powder, jojoba oil, dipropylene glycol butyl ether, nucleoside triphosphate, talcum powder, dioctyl adipate, polypropylene carbonate, polyamide, furfuryl alcohol, wax powder, carbendazim, sodium hydrosulfide, sodium lauroyl sarcosinate, cylindrin, azodicarbonamide, titanium dioxide, lecithin, dodecyl dimethyl benzyl ammonium chloride, sodium stannate, calcium oxide powder, and hexaldehyde. The coating has excellent performances on resisting flame, acid, alkali, mold, and bacteria, and the properties are improved.

The invention discloses a novel integrated solid acid catalyst with a carbon-based structure. The novel integrated solid acid catalyst is a sulfonating carbon nano tube (CNT-SO3H@) stainless steel material and is prepared by using the stainless steel material as a support material, growing a carbon nano tube on the surface of the support material, vulcanizing through polysulfide and oxidizing. The invention simultaneously discloses a preparation method of the novel catalyst and an application in preparation of biodiesel by means of catalytic distillation. The loss of an acid position of the solid acid catalyst with the carbon-based structure is reduced; because of high heat stability and structure stability, the catalyst is easily made into various shapes and is filled into a catalytic distillation tower to be used. An original element having functions of catalyzing and separating is used for coupling a reaction process with a separation process, and because of the process, the complicated processes of pre-esterification, purification and subsequent separation are avoided; meanwhile, a glycerinum product which is used for catalyzing waste oil and methyl alcohol ester to perform exchange reaction is converted into products of glyceraldehydes, glyceric acid, hexanal dimethyl acetal, acraldehyde dimethyl acetal and the like, so that the reaction is greatly intensified; finally, a biodiesel product with high purity can be directly obtained on the top of the tower and at the bottom of the tower.

The invention discloses application of a C6 aldehyde volatile substance to inhibition of mycosphaerella fragariae. The C6 aldehyde volatile substance is hexaldehyde, trans-2-hexenal or cis-3-hexenal.The invention firstly discloses three types of C6 aldehyde volatile substances including the hexaldehyde, the trans-2-hexenal or the cis-3-hexenal in strawberry leaves, which can inhibit the mycosphaerella fragariae, especially can inhibit spore germination and mycelial growth of the mycosphaerella fragariae. In addition, the invention proves the action of the hexaldehyde, trans-2-hexenal or cis-3-hexenal in effectively inhibiting the spore germination and the mycelial growth of the mycosphaerella fragariae and the function thereof in preventing and controlling white leaf spots of strawberriesby a test utilizing the C6 aldehyde volatile substance to fumigate the mycosphaerella fragariae or strawberry leaves. The application disclosed by the invention has the beneficial effects that the apreparation for preventing and controlling the white leaf spots of strawberries caused by the mycosphaerella fragariae is prepared by adopting the hexaldehyde, trans-2-hexenal or cis-3-hexenal, the prevention and control for the white leaf spots of strawberries are carried out, the preventing and controlling effects are obvious, the use amount of pesticide can be effectively reduced and basis is provided for developing novel high-efficiency green and safe biological preventing and controlling method for preventing and controlling the white leaf spots of strawberries.