57 results about "2-Heptanone" patented technology

The present invention is directed to methods and compositions for use to control parasitic mites of honey bees, particularly Varroa mites. In one aspect, the invention is directed to control of parasitic mites of honey bees wherein the active ingredient is a miticidally effective amount of a selected ketone or 1-heptanol, ethyl butyrate, benzaldehyde, heptaldehyde, or d-limonene. In a second aspect, the invention is directed to control of parasitic mites of honey bees wherein the active ingredient is an effective attractant amount of 2-heptanone. The attracted mites are then trapped or otherwise removed from the locus of the bees. The present invention is also directed to methods and compositions which include 2-heptanone to control hive invading pests of honey bees.

The invention discloses a brown sugar flavor for betel nut, which is characterized in that the brown sugar essence mainly comprises, based on weight percentage, the following raw materials: 3%-4% of ethyl maltol, 1%-2% of 4-hydroxy-2, 5-dimethyl-3 (2H) furanone, 0.2%-0.5% of vanillin, 0.5%-1% of damascenone, 0.02%-0.04% of beta-irisone, 0.001%-0.003% of 2-heptanone, 0.008%-0.02% of 2, 3-pentanedione, 0.01%-0.03% of menthol and 0.1%-0.2% of 5- methyl furfural. According to the invention, the main fragrance is formed by matching ethyl maltol, 4-hydroxy-2, 5-dimethyl-3 (2H) furanone and damascenone; at the same time, auxiliary raw materials like 5- methyl furfural, beta-irisone and strawberry acid are added, therefore, the fragrance of the prepared brown sugar is more lifelike and is close to natural brown sugar fragrance.

The resist according to the present invention includes any one of tetrachloromethyl tetramethoxycalix [4] arene and trichloromethyl tetramethoxycalix [4] arene. The resist including such kind of components is soluble in the solvent having less effect to worsen a working environment, namely, ethyl lactate (EL), propylene glycol monomethyl ether (PGME), propylene glycol monomethyl ether acetate (PGMEA), ethyl propionate, n-butyl acetate and 2-heptanone. It can be developed by tetra-methyl ammonium hydroxide in addition to the above mentioned solvent. By exposing this resist by electronic ray, high resolution of 8 nm is attained, and by using this resist as a mask, various materials can be formed into a hyperfine shape. According to such kind of resist, a photosensitive resist material which has high resolution and solvable to solvents having less effect to worsen the working environment and can be developed by the solvents, a exposure method using it, and a hyperfine processing method using it are provided.

The present invention provides: a composition for forming a liquid crystal alignment film capable of forming a liquid crystal alignment film excellent in evenness; and a liquid crystal display device. The present invention provides a composition for forming a liquid crystal alignment film, wherein the composition comprises: a material for forming a liquid crystal alignment film; 4,6-dimethyl-2-heptanone; diisobutyl ketone; and at least one of γ-butyrolactone and N-methyl-2-pyrrolidone as solvents.

The invention relates to the field of pollination of crops, in particular to an effective method for increasing the flower visiting rate of bees. The flower visiting frequency and the number of flowers visited by the bees are increased by combining bee colony control and spraying of an attractant on plants. The method comprises steps as follows: a hybrid soybean field adopting bee pollination is selected; the structure of a bee colony is adjusted; the bee colony for pollination is transported to the soybean field, and the selected bee colony for pollination is transported to the hybrid soybean seed production field in the early stage of flowering of the soybeans; the attractant to be sprayed to the plants is prepared from linalool, benzyl alcohol, ocimene, geraniol, nerol, mushroom alcohol and 2-heptanone. The bee colony is released in the pollination field after being prepared, and the attractant is sprayed on flowers of crops in the flowering period of the crops to attract the bees to visit the flowers. The biological characteristic that pollen and smell are taken as one of approaches to food-source orientation of bee larva is utilized, a large quantity of bees are attracted, the number of the flowers visited by the bees and the natural pollination rate are increased, the yield of the crops is increased, and the method has the characteristics that the method is scientific, simple, convenient and easy to operate, low in cost and remarkable in effect and materials are low in price and easy to obtain.

The invention relates to a volatile substance which has antibacterial activity and is produced by a biocontrol endophytic bacillius subtilis strain Jaas ed1 and an identification method thereof. The strain at least can produce 15 volatile substances, and 10 of the 15 volatile substances are bacteriostat effective substances and comprise 2-heptanone, 2-nonanone, 2-nonanol, 2-decanone, 2-decanol, 2-phenethyl alcohol, 2-undecanone, 2-cyclododecanoe, 2-undecanol and 2-tridecanone. The collecting and purifying method includes the steps that endophytic bacillius subtilis Jaas ed1 fermentation liquor is heated and stirred on a magnetic stirrer, solid phase microextraction is conducted on volatile gas through a DVB/CAR/PDMS extraction head, and finally extracted volatile substance ingredients are determined through the GC-MS. The volatile gas can inhibit mycelial growth of pathogens of watermelon fusarium wilt and germination of cotton verticillium dahliae microsclerotia, extremely-high study and application value is achieved on development of broad-spectrum antibacterial chemicals, and wide application prospects are achieved for protecting the natural quality of crops and fruits of the crops and reducing pesticide residues.

The invention provides an oil-soluble thick oil yield increasing and viscosity reducing agent and preparation. The oil-soluble thick oil yield increasing and viscosity reducing agent is prepared from the following ingredients in parts by weight: 10 to 20 parts of acrylic acid higher-alcohol ester styrol copolymer, 5 to 8 parts of ketone, 10 to 20 parts of random polyether, 5 to 10 parts of glycoland 42 to 70 parts of organic solvents. The preparation method comprises the following steps of: sequentially adding the organic solvent, the ketone, the glycol and the random polyether to a reactionkettle, then, adding the acrylic acid higher-alcohol ester styrol copolymer under the stirring condition at 35 to 45 DEG C, controlling the temperature for 25 to 35 minutes, and uniformly stirring toobtain the product. The acrylic acid higher-alcohol ester styrol copolymer is adopted as an acrylic acid 12-18 alcohol ester styrol copolymer, the adopted ketone is acetone, cyclohexanone, 2-heptanone, ethyl methyl ketone, isophorone or N-methyl-2-ketopyrrolidine, and the adopted random polyether is formed through using fatty alcohol as an initiator to be mixed and polymerized with epoxy ethane and propylene oxide, wherein the fatty alcohol is C10-C14 alcohol, C12-C14 alcohol and C12-C16 alcohol or C12-C18 alcohol and C10-C14 alcohol or C12-C18 alcohol, wherein the ratio of the epoxy ethane to the propylene oxide is 1/1, 2/1 or 5/3. The product is used for thick oil extraction, the average oil yield is 35 to 45t per day, the average thin oil saving quantity is 10 to 22t per day, and the design effect can be reached.

The invention discloses a black soybean milk flavor and a preparation method and an application thereof. The flavor comprises isovaleric aldehyde, methyl alcohol, isopentyl alcohol, hexanal, 2-methylpyrazine, furfural, trans-2-hexenal, furfuryl alcohol, hexyl alcohol, 2-heptanone, heptanal, 2-acetylfuran, 2, 5-methylpyrazine, 2, 3-dimethyl pyrazine, trans-2-heptenal, 5-methyl-furfural, benzaldehyde, heptanol, 1-octen-3-alcohol, 2-pentyl-furan, caprylaldehyde, 2-acetyl thiazole, trans-2-octenyl aldehyde, octanol, nonanal, capraldehyde, trans,trans-2,4-nonadienal, trans-2-decenal, 2-undecanone,trans,trans-2,4-heptadienal, trans-2-undecenal and propylene glycol. The method comprises the following steps: evenly mixing the above constituents, stewing and curing for 15 days, subpackaging to obtain the black soybean milk flavor. The flavor has convenient raw materials sources, mild fragrance and high naturalness, and is applied to preparing the beans products, is especially used for preparing black soybean milk beverage, not only can enhance mouthfeel, but also can better cover soil mildewed flavor brought by beans in basic materials.

The present invention discloses a cheese flavor containing food additive as well as a preparation method and application thereof. The cheese flavor containing food additives comprise the following components in mass percentage: 0.1-0.5% of 3-methylthiopropanal, 0.1-1% of 3-methylthio-propanol, 0.1-0.5% of 2-undecanone, 0.5-1% of 2-heptanone, 0.1-0.5% of 2-nonanone, 10-15% of anhydrous butter hydrolysates, 0.1-1% of ethyl vanillin, 1-2% of vanillin, 0.1-0.5% of delta-decalactone, 1-5% of butyl butyryl lactate, 0.8% of delta-dodecalactone, 0.3-0.6% of ethyl laurate, 0.01-0.1% of ethyl acetate, 0.1-0.5% of ethyl caprate, 0.1-0.5% of oleic acid, and 70-85% of soybean oil. The addition of the anhydrous butter hydrolysates enables the cheese flavor containing food additives to be richer and more delicate in aroma. When the anhydrous butter hydrolysates are added during the food production process, the resulting product is lifelike and natural in cheese fragrance, and is excellent in mouthfeel. The food additives are zero trans-fatty acids which can meet the dual demands of people for delicacy and fitness.

The present invention belongs to the technical field of organic chemistry purification, and relates to a method for improving adsorption performance through modification on a molecular sieve. The method is characterized in that a molecular sieve is subjected to loading or exchange modification with a soluble metal salt or heteropoly acid and the like, and the modified molecular sieve is used to adsorb 2-heptanone in a cyclohexanone finished product, wherein the 2-heptanone content in the cyclohexanone after the adsorbing is less than 5 ppm, such that the product quality is substantially improved, and the product competitiveness is strong. According to the present invention, the modified molecular sieve can be applied multiple times, and provides high adsorption quantity compared with the unmodified molecular sieve, and the molecular sieve achieving the saturated adsorption state can be recycled after the molecular sieve is subjected to the desorption treatment.

The invention discloses a Fragaria ananassa Duchesne fermented extract and a preparation method and application thereof. The Fragaria ananassa Duchesne fermented extract is prepared from Fragaria ananassa Duchesne, which serves as a raw material, through fermenting with Lodderomyces elongisporus and extracting aroma components from a fermented solution. The Lodderomyces elongisporus is collected in the China General Microbiological Culture Collection Center (CGMCC); the collection number is CGMCC No. 6645; the collection date is October 08, 2012. The Fragaria ananassa Duchesne fermented extract contains a variety of aroma substances, such as phenylethyl alcohol, acetone, 4-ethyl guaiacol, methyl butyrate, 2-heptanone, ethyl caproate and the like. Shown by results of flavored smoking assessment tests, the product can be harmonized with cigarette flavors, can obviously promote the cigarette flavors, make smoke gas delicate and mellow, lower irritation, conceal impurity gases and improve the smoking flavor of cigarettes, and can generate a fresh and special aroma.

Methods, systems and catalysts for converting an alcohol containing feedstock to an upgraded material in a single catalyst bed wherein a feedstock is fed to a catalyst under preselected conditions to obtain an intermediate; and condensing the intermediate through an aldol condensation reaction to yield a product containing an upgraded material. In one instance the feedstock includes ethanol, the catalyst is a mixed metal oxide catalyst and the upgraded material is typically a C₅+ ketone(s) or alcohol(s), such as 2-pentanone, 2-heptanone, 4-heptanone and 2-nonanone.

The invention relates to a flame-retardant and heatproof artificial stone with high hardness and luster. The artificial stone comprises the following components: talcum powder, bentonite, quartz, pearlite powder, fine sand, polyimide fiber, p-diazodiphenylamine paraformaldehyde condensate, polyisocyanate block polymer, organic silicon modified polyurethane resin, 6-ethoxyl-2,2,4-trimethyl-1,2-dihydroquinoline, styryl pyridine dimethyl sulfate, isobutyraldehyde, a curing agent, dipropylene glycol dimethyl ether, polyvinyl butyral, sulfoselenide cadmium, N-methyl pyrrolidone, zinc ferrite, quinacridone pigment, cyclooctanone, 2-heptanone, methyl methacrylate, barium sulfate, 1,2,3,4-cyclopentane tetracarboxylic acid, zirconium sulfate, and deionized water. The provided artificial stone has the advantages of high hardness, metal luster on the surface, high anti-wear performance, flame retardant property, and heatproof performance.

The invention relates to wheat protein coating food wrap paper and a preparation method of the wheat protein coating food wrap paper, and belongs to the technical field of food packaging. The preparation method comprises the following steps of: preparing base paper, preparing coating liquid, and coating based on coating weight of 5 to 60g/m<2>; coating components are prepared by the following components in weight concentration: 20 to 50% of wheat protein, 0.05 to 0.1% of sodium sulfite, and 1 to 4% of acetic acid. The wheat protein coating food wrap paper produced by the invention can be applied to packaging common food, and also can be applied to packaging food which have special requirements on oxygen permeation rate, carbon dioxide permeation rate and resistance to penetration and loss of 2-heptanone and 2-nonanone and the like.

A method of detecting hypoxia. Detecting hypoxia includes detecting, in exhaled breath, at least one indicator for hypoxia. The at least one indicator is selected from the group consisting of pentanal, 2-pentanone, 2-hexanone, 2-heptanone, 2-cyclopenten-1-one, and 4-butyrolactone.

The invention relates to a method for purifying cyclohexanone through distillation adsorption. The method is characterized in that impurities (hexanal and 2-heptanone) are removed out of cyclohexanone through distillation adsorption. By adsorption columns in a specific order, hexanal and 2-heptanone in the cyclohexanone can be removed by using the distillation adsorption. A secondary saponification method with high cost is not used, the contents of hexanal and 2-heptanone can be fast reduced, a large quantity of solvent type cyclohexanone is converted into chemical fiber cyclohexanone so as to greatly improve the additional value of the cyclohexanone product, and therefore the method has strategic importance to the cyclohexanone production.

The invention discloses a method for continuous removal of impurities in cyclohexanone. According to the invention, two adsorbing devices are connected in series; an adsorbent is added into the adsorbing devices for continuous adsorption of impurities in cyclohexanone; and when the total content of impurities discharged by one of the adsorbing devices is greater than 30 ppm, the adsorbing device is subjected to desorption and the other adsorbing device is used for continuous adsorption of impurities in cyclohexanone at the same time. The method provided by the invention effectively removes impurities consisting of 2-heptanone, caproic aldehyde and 2-hexanone in cyclohexanone and allows the total content of the impurities to be less than 300 ppm, which meets requirements of chemical fiber-grade cyclohexanone; and the method can carry out continuous adsorption and desorption, so continuous controllable operation is realized.

The present invention discloses a blending-type purple potato essence. The blending-type purple potato essence comprises the following raw materials in parts by weight: 0.01-2 parts of isobutyraldehyde, 0.01-2 parts of isovaleraldehyde, 0.01-2 parts of acetic acid, 0.1-5 parts of isoamylol, 0.05-2 parts of hexanal, 0.01-5 parts of 2-heptanone, 0.01-5 parts of heptaldehyde, 0.01-0.5 part of 4-ethylphenol, 0.01-5 parts of methyl hexanoate, 0.01-5 parts of benzaldehyde, 0.01-5 parts of hexanoic acid, 0.01-5 parts of 2-octanone, 0.01-5 parts of ethyl hexanoate, 0.01-5 parts of ethyl octanoate, 0.005-2 parts of 2-undecanone, and accessory materials. The provided essence has a characteristic flavor of baked purple potatoes, is added to the hot processed product of the purple potatoes, and can continuously provide the unique sensory flavor for the purple potatoes.

The invention relates to new isolated Lactobacillus strains chosen from Lactobacillus mellifer Bin4N^T (LMG P-28344) and Lactobacillus apinorum Fhon13N^T (LMG P-28345), which have been isolated from honeybees or their processed food. The bacterial strains have unique properties such as production of benzene, free fatty acids and 2-heptanone, rendering them useful in many areas such as in food and beverage products, feed products and medical products.