67 results about "Trans-2-hexenal" patented technology

Methods, combinations and compositions for relieving or preventing the effects of stress are provided. In particular, combinations and compositions comprising cis-3-hexen-1-ol, trans-2-hexenal and α-pinene, articles of manufacture impregnated with the combination or composition and methods of relieving stress by exposure to the combination or composition are described.

The invention provides a Hyphantria cunea Drury attractant composition, its application and attracting core. The Hyphantria cunea Drury attractant composition includes Hyphantria cunea Drury sex pheromone and its synergistic agent. The synergistic agent contains one or more of the following plant source smell components: beta-ocimene, hexanal, cis-3-hexenal, diacetone alcohol, diisopropylcarbinol, 6-methyl-5-heptene-2-one, trans-3-hexenol, o-xylene, hemimellitene, trans-2-hexenal, and limonene. The attractant composition provided in the invention can be prepared into an attracting core so as to be used cooperatively with the existing Hyphantria cunea Drury sex pheromone. The invention provides the attracting core containing the Hyphantria cunea Drury attractant composition to prevent, control and detect Hyphantria cunea Drury, so that the defects of high cost and difficult popularization of imported and domestic Hyphantria cunea Drury sex pheromone attracting cores in the prior art are solved. The attracting core provided in the invention has the advantages of low cost, flexible use, and higher trapping efficiency.

Absorbent articles comprising one or more complexed or encapsulated compounds compounds selected from: melonal, adoxal, trans-2-hexenal, ligustral, Floral Super, Florhydral, 5-methyl-2-thiophene-carboxaldehyde, hydratropic aldehyde, undecenal, 9-undecenal, 10-undecenal, trans-4-decenal, cis-6-nonenal, isocyclocitral, precyclemone b, (E)-2,(z)-6-nonadienal, undecyl aldehyde, methyl-octyl-acetaldehyde, Lauric aldehyde, silvial, vanillin, floralozone; are particularly effective in reducing malodors coming from degradation of proteinaceous materials such as food, menses or feces.

The foliage and stems of plant species from the family Rosaceae, genus Prunus, yield natural pesticides when macerated. Hydrodistillation of macerated plant biomass yields a concentrated solution of organic volatile compounds that act synergistically as a natural pesticide. Volatile compounds liberated from Prunus biomass include 2-propanol, hexanal, trans-2-hexenal, 1-hexanol, cis-3-hexenol, mandelonitrile, benzoic acid, benzaldehyde, benzyl alcohol, hydrocyanic acid and others. These compounds may be removed from the distillate and reformulated to form a standard concentrated solution, with benzaldehyde, mandelonitrile and hydrogen cyanide being the major components. The extracts may be used as a soil treatment or soil fumigant for soil-borne pests. They also may be formulated for application as solutions with or without a surfactant or formulated as powders for foliar treatment. In a particular application, such extracts may be applied to postharvest commodities such as fruits, vegetables, roots, grains and nuts to protect against certain fungi and insects.

The invention relates to a chicken oily essence, which consists of the following components: 2-methyl-3-furanthiol, bis(2-methyl-3-furanthiol), 1,6-hexanedithiol , furanone, dimethyl trisulfide, 2-methylpyrazine, 2,3,5-trimethylpyrazine, 2,5-dimethyl-3-furanthiol, 3-methylthiopropanal , 4-methyl-5-hydroxyethylthiazole, 2,6-dimethylpyrazine, 2,4-decadienal, 2,4-nonadienal, furfuryl mercaptan, 1-octene- 3-Keto, distilled ginger oil, clove oil, 2-acetylfuran, nonanal, 4-ethylguaiacol, soy sauce ketone, 3-methylthiopropanol, trans-2-hexenal, 3- Methyl-2-butanone and soybean oil. The final formulated essence has a strong chicken flavor, can provide good chicken aroma and fragrance to soybean products, and has good aroma and fragrance stability.

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 invention discloses a sex attractant for alfalfa plant bugs and application of the sex attractant. The sex attractant for the alfalfa plant bugs comprises the following components in percentage by weight: 50-80 percent of butyric acid-trans-2-hexene ester and 20-50 percent of 4-carbonyl-trans-2-hexenal, and the sum of weight percentage of the two components is 100 percent. The sex attractant for the alfalfa plant bugs is uniformly mixed with an organic solvent difficult to volatilize; then the mixed solution is put into a sealed plastic bottle; the plastic bottle is fixed on a sticky coloured card trap for trapping male alfalfa plant bug adults. The sex attractant for the alfalfa plant bugs, which is provided by the invention, can be accurately used for observing and predicting insect pest situations of the alfalfa plant bugs, trapping a large number of the alfalfa plant bugs, and disturbing the mating of the alfalfa plant bugs and has significance in comprehensive treatment of the alfalfa plant bugs.

The invention discloses an apple essence formula for a dairy product. The apple essence is mainly prepared from the following components: cream esterified esters, isoamyl acetate, trans-2-hexenal, hexyl acetate, acetaldehyde, a 40 percent ethanol solution, n-hexanol, hexanal, isoamyl isovalerate, 2-ethyl 2-methyl-butanoate, butanol, ethyl caproate, acetaldehyde diethyl acetal, heptyl acetate, propanediol and glycerol. The apple essence prepared by the formula has the obvious advantages that by utilizing the cream esterified esters which are natural and have strong binding capability with the dairy product as a raw material, on one hand, the natural feeling of the apple essence can be strengthened, and on the other hand, the apple essence can be well bonded with the dairy product, so that the problem that fragrance is wafted to be separated from the theme of a beverage is solved.

The invention belongs to the technical field of genetic engineering of insects and particularly relates to a separated adelphocoris suturalis delta 9-desaturase gene and an encoded protein thereof. The nucleotide sequence of the separated adelphocoris suturalis delta 9-desaturase gene is represented by SEQ ID NO:1, and the encoded protein sequence of the gene is represented by SEQ ID NO:2. The invention further relates to application of the adelphocoris suturalis delta 9-desaturase gene as an RNA interference sequence. The adelphocoris suturalis delta 9-desaturase gene has a good silencing effect in the sequence pair. By injecting the interference sequence, the content of a pheromone component 4-oxo-trans-2-hexenal is obviously increased, the mixing ratio of the pheromone is changed, and the attraction force of females to males is remarkably inhibited. Furthermore, the protein can be applied to the development of biological pheromones or transgenic anti-insect plants or the biologicalprevention and control of adelphocoris suturalis.

The invention discloses an adelphocoris suturalis sex attractant which comprises the following ingredients in weight percentage: 80-90% of hexyl butyrate, 9-19% of 4-carbonyl-trans-2-hexenal and 0.1-1% of cis-3-Hexenyl caproate. The invention also discloses an application of the adelphocoris suturalis sex attractant in trapping adelphocoris suturalis. The adelphocoris suturalis sex attractant and the application thereof have a good attractive effect on the adelphocoris suturalis, particularly the male adults, has strong selectivity so as not to cause damage to beneficial insects and natural enemies of the adelphocoris suturalis, can not produce resistance, can be used for killing the male adults of the adelphocoris suturalis by attraction and disturbing mating, and has great significance in comprehensive treatment of the adelphocoris suturalis and cotton planting.

The invention discloses a cucumber fermented extract and a preparation method and application of the cucumber fermented extract. The cucumber fermented extract is prepared by the following steps: fermenting cucumber serving as a raw material with lodderomyces elongisporus and extracting aroma components from a fermentation liquor, wherein the lodderomyces elongisporus is preserved at the China microbial culture Collections Management Committee for General Microbiology Centre with a preservation number of CGMCC No.6645 on October 8, 2012; the prepared cucumber fermented extract contains a plurality of aroma components, such as phenethyl alcohol, cis-2,6-nonadienaldehyde, trans-2-nonenal, trans-2-hexenal and megastigmatrienone. The flavored smoking test result shows that the cucumber fermented extract can be compatible with cigarette flavor, the cigarette flavor can be obviously improved and regulated, the smoke can be exquisite and velvety, the thrill is reduced, an offensive odor is covered, the cigarette taste is improved, and a fresh special note is generated.

The invention discloses a method for synthesizing trans-2-hexenal. The method includes steps of (1), adding acidic ionic liquid into reaction flasks, completely dropwise adding vinyl ethyl ether and butyraldehyde mixed liquid into the reaction flasks at the temperatures of 0-25 DEG C, then heating systems until the temperatures of the systems reach 20-45 DEG C, carrying out stirring reaction for 1-6 hours, and carrying out reduced pressure distillation after the reaction is completely carried out so as to obtain cyclization intermediates A; adding dilute sulfuric acid aqueous solution and theintermediates A into reaction flasks, erecting reflux oil and water layering devices, carrying out heating normal-pressure distillation for 4-48 hours, and extracting upper oil layers into oil layer receiving flasks; (3), rectifying and purifying hexenal crude products, carrying out normal-pressure rectification to obtain substances with low boiling points and then carrying out reduced pressure rectification to obtain the trans-2-hexenal. A molar ratio of butyraldehyde to vinyl ethyl ether is 2:1-5:1, and the usage of the acidic ionic liquid accounts for 0.1-5% of the total weight of the vinylethyl ether; the acidic ionic liquid is [(CH2)3SO3HMIM][HSO4] or [(CH2)3SO3HMIM][CF3SO3]. The oil layers are the hexenal crude products; the mass concentration of the dilute sulfuric acid aqueous solution is 0.5-25%, and a weight ratio of the dilute sulfuric acid aqueous solution to the intermediates A is 0.2:1-2:1. The method has the advantages of environmental protection, low cost and high yield.

The invention provides a method for trapping encarsia formosa to restrain tea aphids. Trans-2-hexenal, methyl salicylate, trans-2-pentenal, cis-jasmone and beta-ionone are prepared into solutions withthe concentratin of 10<-2> g/mL-10<-6> g/mL respectively, then the five solutions are mixed in the proportion of 1:(1-2):(1-2):(1-2):(1-2) to prepare an encarsia formosa trapping agent, and the encarsia formosa trapping agent is dripped onto wool felt to prepare trapping cores. The volume of each trapping core is 25*10*10 mm<3>, and the total mass of the five contained compounds is 10-15 mg. Important tea tree pests, namely the tea aphids, cause severe damage from mid April to mid May and from the first ten days of September to the first ten days of November every year, and two population peaks are formed in the two periods respectively. The trapping cores are hung in tea bushes suffering from the tea aphids 10-20 days before each peak comes, and the trapping cores are hung when the number of tea shoots suffering from aphid damage is larger than 5-10 every one square meter. Encarsia formosa parasitic tea aphid nymph is trapped to reduce or eliminate consumption of chemical pesticidesto prevent the aphids.

The invention provides a tomato base, belongs to the technical field of edible essence, and further provides micro-encapsulated embedded tomato essence. The tomato base comprises ethyl maltol, furanone, 3-methylthiopropanal, 2-isobutylthiazole, leaf alcohol, eugenol, damascenone, caprylic acid, acetic acid, decanoic acid, isovaleric acid, phenethyl alcohol, dimethyl sulfide, ethyl butyrate, ethyl caprate, cinnamaldehyde, 4-methylthio-2-butanone, linalool, trans-2-hexenal, cis-3-hexenyl acetate, geranylacetone, cis-3-hexenyl butyrate, geranyl butyrate and the like. The tomato base and the micro-encapsulated embedded tomato essence have the advantages that the tomato base is good in integral coordination, and harmonious and mellow tomato aroma can be formed by the tomato base and is similar to natural tomato aroma; the micro-encapsulated embedded tomato essence is good in stability and heat resistance and is uniformly embedded, and the like.

The invention discloses a poultry feed additive, and belongs to the field of feed. The poultry feed additive comprises microcapsules; the microcapsules are prepared via embedding of probiotics; the outer surfaces of the microcapsules are coated with polylactic acid thin films; and oligosaccharide-trans-2-hexenal is added in the polylactic acid thin films. The poultry feed additive is capable of reducing influences of pediococcus pentosaceus drug resistance, reducing diffusion influence of pediococcus pentosaceus drug resistance greatly, reducing adverse influence on animal health, human health, or the environment, increasing feed utilization rate of dorking (Caokeji), improving dorking growth performance, and improving Caokeji chicken production performance.

The invention relates to a watermelon essence for oil-based ink. The watermelon essence is prepared from watermelon essence, maltodextrin and starch sodium octenylsuccinate, wherein the watermelon essence is prepared from leaf alcohol, hexenyl acetate, ligustral, phenyl acetaldehyde dimethyl acetal, methyl heptenone, trans-2-hexenal, nonadienaldehyde, melonal, ethyl caprylate, ethyl isovalerate, hexyl acetate, allyl cyclohexanepropionate, benzyl alcohol, linalool, citronellol, geraniol, Alpha terpneol, phenethyl alcohol, hydroxycitronellal, lilial, heliotropin, citral, dimethylbenzylcarbinyl acetate, vanillin, alpha-damascenone, isomethyl ionone, verdyl acetate, linalyl acetate, linalyl acetate, styralyl acetate, phenethyl acetate, phenethyl isobutyrate, phenoxyethyl isobutyrate, terpinyl acetate, n-pentyl salicylate, benzyl benzoate, benzyl salicylate and Brazil orange oil. The invention also provides a preparation method for the watermelon essence for the oil-based ink. According to the watermelon essence and the preparation method, the fragrance retention effect and the oil solubility of the essence are improved.

The invention discloses a sex attractant for adelphocoris fasciaticollis reuters and application of the sex attractant. The sex attractant for the adelphocoris fasciaticollis reuters is composed of 4-carbonyl-trans-2-hexenal, hexyl butyrate and butyric acid-trans-2-hexene ester, and the mass ratio of the 4-carbonyl-trans-2-hexenal to the hexyl butyrate to the butyric acid-trans-2-hexene ester is 1:11:(0.005-0.03). The sex attractant for the adelphocoris fasciaticollis reuters is uniformly mixed with an organic solvent difficult to volatilize; then the mixed solution is put into a sealed plastic bottle; the plastic bottle is fixed on a sticky coloured card trap for trapping male adelphocoris fasciaticollis reuter adults. The sex attractant for the adelphocoris fasciaticollis reuters can be accurately used for observing and predicting insect pest situations of the adelphocoris fasciaticollis reuters, trapping a large number of the adelphocoris fasciaticollis reuters, and disturbing the mating of the adelphocoris fasciaticollis reuters and has significance in comprehensive treatment of the adelphocoris fasciaticollis reuters.

The present invention relates to a method of removing off-flavour from a soy protein containing substrate, said method comprising a neutralisation procedure which includes the following steps: - providing a pasteurised or sterilised aqueous liquid containing 0.5-8 wt.% of dissolved soy protein; - inoculating the pasteurised or sterilised liquid with a culture containing an off-flavour removing lactic acid bacteria (LAB) strain capable of metabolising a C 5-C 9n- alkanal and/or trans-2-hexenal, said inoculation optionally occurring after said pasteurised or sterilised liquid has first been fermented with another micro-organism; - fermenting the inoculated aqueous liquid by incubation at a temperature in the range of 20-45 C for 0.4-6 hours; wherein less than 600 ppm of lactate is formed during said neutralisation procedure. The present method enables removal of typical soy-related off- notes in a very effective way by employing a LAB strain capable of metabolising a C 5-C 9n-alkanal and/or trans-2-hexenal and by conducting a relatively short fermentation that yields not more than limited quantities of lactate.