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58 results about "Alpha acid" patented technology

Alpha acids (α acids) are a class of chemical compounds primarily of importance to the production of beer. They are found in the resin glands of the flowers of the hop plant and are the source of hop bitterness. Alpha acids may be isomerized to form iso-alpha acids by the application of heat in solution. Iso-alpha acids (iso-α-acids) are typically produced in beer from the addition of hops to the boiling wort. The degree of isomerization and the amount of bitter flavor produced by the addition of hops is highly dependent on the length of time the hops are boiled. Longer boil times will result in isomerization of more alpha acids and thus increased bitterness.

Hydrogenation of hop soft resins using CO2

InactiveUS6020019AEncourage the formation of desoxytetrahydro-alpha-acidsOrganic compound preparationCarbonyl compound preparationAlcoholCO2 - Carbon dioxide
Carbon dioxide is used as a reaction solvent in the hydrogenation of organic compounds. The carbon dioxide is preferably a liquid or a supercritical fluid. The hydrogenation method can be used advantageously in methods for making tetrahydroiso-alpha-acids from alpha-acids, iso-alpha-acids, or beta-acids. If beta-acids are used to make tetrahydroiso-alpha-acids, an acidic lower alcohol is preferably added to the carbon dioxide reaction medium to act as a promoter.
Owner:MILLER BREWING COMPANY

Bioactive compositions derived from humulus lupulus

ActiveUS7144590B2Good selective COX- inhibitionBroad spectrum of therapeutic benefitBiocideAntipyreticSide effectCyclooxygenase
Disclosed is a novel anti-inflammatory pharmaceutical composition that exhibits potent and selective inhibition of the cycloooxygenase-2 (COX-2) enzyme. The formulation consists of a hops extract that exhibits COX-2 selectivity as defined by dividing the IC50 COX-2 / IC50COX-1 concentrations that are determined by testing with the William Harvey Whole Blood Assay (WHMA), and falls in the range of 0.011 to 0.2. Such compositions may also optionally contain high levels of alpha acids and low levels of beta acids, some flavonoid compounds, and virtually no essential oils. Such compositions are useful for treating conditions that manifest as inflammatory pain, or are impacted by the COX-2 enzyme. The recited compositions are particularly beneficial for treating osteoarthritis and rheumatoid arthritis, and can be used for chronic pain with reduced gastric side-effects.
Owner:LIPOPROTEIN TECH

Use of hop acids in fuel ethanol production

Six hop acids are common to hops and beer: alpha acid, beta acids, isoalpha acids, rho-isoalpha acids, tetrahydro-isoalpha acids, and hexahydro-isoalpha acids. The six hop acids were tested to determine which were the most effective in inhibiting the growth of bacteria common to fuel ethanol production. The bacteria used in the tests were Lactobacillus brevis and Lactobacillus fermentum. The minimum inhibitory concentrations (MIC) of the hop acids were determined using MRS-broth. Molasses mash and wheat mashes were used as the growth media for the fermentations. In all cases the hop acids controlled the growth of these two lactobacillus bacteria with tetrahydroisoalpha acid, hexahydroisoalpha acid, and isoalpha acid killing the most bacteria at the lowest MIC. Treating yeast propagators, steep tanks, and fermenters with a minimum inhibitory concentration of hop acids will stop bacteria growth, increase ethanol yields and avoid the need for antibiotics.
Owner:JOHN I HAAS

Antimicrobial compositions

The present invention provides an antimicrobial composition comprising an antimicrobial effective amount (such as a preservative, bactericidal, and / or fungicidal effective amount) of a mixture comprising at least two of: (a) lemon grass oil; (b) cinnamaldehyde, cinnamon oil, cinnamomum cassia, cinnamon extract, cassia leaf oil, 3,4-dihydroxycinnamic acid or salt thereof, or a mixture thereof; (c) sorbic acid, or a salt thereof; (d) erythorbic acid, or a salt thereof; (e) benzoic acid, or a salt thereof; (f) arabinogalactan, galactoarabinan, or a mixture thereof; (g) a hexahydro-iso-alpha-acid, tetrahydro-iso-alpha-acid, or a mixture thereof; (h) Achillea fragrantissima oils, Santolina fragrantissima oils, Forssk oils, Lavender cotton oils; and (i) Glucono Delta Lactone. The present invention also provides a product (preferably a product other than a foodstuff, pharmaceutical, or cosmetic) comprising a preservative effective amount of cinnamaldehyde or a mixture of cinnamaldehyde and one or more alkanol-dialkyl hydantoins.
Owner:LONZA LTD

Antimicrobial casing

InactiveUS20050031743A1Reducing and eliminating alterationPrevent appearanceOther dairy technologySausage casingsBiotechnologyCellulose
The invention is directed to an application of a hop extract, hydrogenated hop extract, hop alpha acids, hop beta acids, hydrogenated hop acids, derivatives of hop acids or their resins, each separately or in combinations of two or more, on the inside surface of a cellulosic casing used in sausage manufacture to prevent the appearance and growth of gram-positive bacteria especially of the genus Listeria in these meat products. Similarly, the invention also provides a cellulosic casing for meat products coated internally with a solution of the hop derivates mentioned; and a meat product produced using this cellulosic casing. Finally, the invention provides a method to apply this solution to a meat product.
Owner:VISCOFAN

Hop extract of defined composition

InactiveUS20010031305A1High level of uniformityHigh level of product controlHops treatmentHops extractBiochemistry
A hop extract product of specific and predefined composition is provided that is specifically an enriched alpha-acid hop extract product having a total alpha-acids concentration greater than 60% by weight, a total beta-acids concentration of less than 20% by weight, and a total hop essential oil concentration in excess of 1% by weight, and a process for manufacturing such an enriched extract. The process includes extracting a raw hop to produce a whole hop extract with a portion of the whole hop extract refined to form a purified alpha acids product, which is utilized to supplement the whole hop extract or the beta-acids and oils to form an enriched alpha-acid hop extract product. This enriched extract is uniform and precisely standardized, containing invariable and exact quantities of specifically desired flavoring components. The alpha enriched extract product also has better stability than the high purity alpha-acids fraction.
Owner:YAKIMA CHIEF

Methods for Reducing Soluble Metal Ions in Diatomaceous Earth Filter Aids

A method for reducing the amount of beverage soluble metal ions in a diatomaceous earth filter aid is disclosed. The beverage soluble metal ions can be copper and / or iron. In the method, the diatomaceous earth filter aid is contacted with a hop compound selected from iso-alpha-acids, dihydroiso-alpha-acids, tetrahydroiso-alpha-acids, hexahydroiso-alpha-acids, alpha-acids, and beta-acids. The diatomaceous earth filter aid can also be contacted with and an acid other than the hop compound such as phosphoric acid. The iso-alpha-acids, dihydroiso-alpha-acids, tetrahydroiso-alpha-acids, hexahydroiso-alpha-acids, alpha-acids, or beta-acids bind the copper and iron metal ions and / or change the form of copper and iron in diatomaceous earth so the copper and iron are rendered substantially insoluble in a beverage such as beer. A method for filtering a beverage using the treated diatomaceous earth filter aid is also disclosed. A method for increasing the flavor stability of a malt beverage filtered with a diatomaceous earth filter aid is also disclosed.
Owner:MILLERCOORS

Method for producing tetrahydro isomerized alpha acid

This invention relates to a preparation method for tetrahydro-iso-alpha acid. First, clean hop extractive with weak lye. Then, dissolve the alpha acid therein with higher concentration lye and isomerize it into isomerized alpha acid by routine isomerization method. Next, with skeleton metal catalyser and bivalent and trivalent metal ion as protectant, hydrogenize the isomerized alpha acid to obtain the tetrahydro-iso-alpha acid which is treated by kali-salt strong acidic cationic-exchanged resin to obtain the end product. Advantages: low cost and good solubleness.
Owner:YUMEN TUOPU SCI & TECH DEV CO LTD

Natural and stable solutions of alpha-acids and their use for the improvement of foam quality of beer

This invention describes natural hop products that are stable solutions of alpha-acids, as well as their preparation and their use for post-fermentation addition to beer for the purpose of improving the foam quality, as measured by foam stability and foam cling. Improvements in the stability (both physical and chemical) of the alpha-acids are described by incorporation of iso-alpha-acids and tetrahydroiso-alpha-acids as well as various brewery-acceptable co-solvents. The alpha-acids also improve the physical stability of the reduced iso-alpha-acids, including tetrahydroiso-alpha-acids.
Owner:SS STEINER INC

Cryogenic hop lupulin or cannabis trichome pellets

An enriched trichome pellet product including either a hop derived lupulin component or a cannabis derived trichome component, and the associated cryogenic and mechanical method for the efficient production of the pellet product. The pellet is produced at low temperatures, which aids in pellet production eliminating degradation of the hop lupulin having a high alpha acid and essential oils content that is especially suited for use in the brewing of beer and hop flavored beverages, and aids in eliminating degradation of the cannabis trichome having aromatic oils, and terpenoids and terpenes as well as therapeutic and psychoactive cannabinoids including THC, CBG, and CBD that is especially suited for use in cannabis component or “cannabinoid” enriched products.
Owner:YAKIMA CHIEF HOPS LLC

Cotton function promoter for preventing and controlling bollworm and its prepn process

The cotton function promoter is compounded with selenic acid, tannic acid, aluminum trichloride, ferric trichloride, defoaming agent, alpha-acid, citric acid, lactic acid, and aglycone butter fat, and through stepped mixing while stirring, and packing. The present invention features the high bollworm preventing and controlling effect, protection of natural enemy to bollworm and no environmental pollution.
Owner:新疆生产建设兵团农业建设第一师农业科学研究所

Method for synthesizing azelaic acid through single ionic liquid catalyzing oleic acid

The invention relates to a method for synthesizing azelaic acid through single ionic liquid catalyzing oleic acid. The method comprises the following steps: oleic acid and a 1-(alpha-acid) methyl-3-methylimidazole phosphotungstic acid ionic liquid catalyst are mixed, then a hydrogen peroxide solution is added, the mixture is fully stirred, after the reaction, an oil layer is on the upper layer, a water lay is on the lower layer, and separation is easy; a separated aqueous phase is refrigerated and crystallized, white powder is precipitated, and azelaic acid solid is obtained through suction filtration and drying. According to the method, other chemical apparatuses are not required to be added in the whole reaction process, energy is saved, the reaction speed is accelerated, the time is saved, and no large number of organic solvent is required in the reaction, so that the method is green and environment-friendly. The method for synthesizing azelaic acid through single ionic liquid catalyzing oleic acid has the advantages that the reaction yield is high, one step reaction process is simple, the reaction system is easy to separated, the production cost is effectively reduced, and environment is protected.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Method for simultaneously measuring alpha-acids, beta-acids and iso-alpha-acids in hops

The invention discloses a method for simultaneously measuring alpha-acids, beta-acids and iso-alpha-acids in hops by reverse-phase high-performance chromatography. By the aid of the method, nine substances including three types of the alpha-acids, three types of the beta-acids and three types of the iso-alpha-acids can be simultaneously separated quickly and effectively. The method is characterized in that chromatographic conditions include that a chromatographic column is an EC 250/4Nucleosoil 100-5C18 chromatographic column, a flowing phase A is aqueous solution [containing 0.1% of phosphoric acids and 0.2mM of EDTANa2 (ethylene diamine tetraacetic acid disodium)], and a flowing phase B is acetonitrile. The flowing speed is 1.0mL/min, dual-wavelength detection UV (ultraviolet) waves have wavelengths of 270nm and 315nm, the temperature of the column is 30 DEG C, and the volume of an injected sample is 10 microliters. The method is used for monitoring change relation among the alpha-acids, the beta-acids and the iso-alpha-acids in the hops in a production process for heterogenous particles and heterogenous extract of the hops, and provides a theoretical reference for production technology. In addition, the method also can be used for researching dynamic variation of the alpha-acids and the iso-alpha-acids of the hops in a wort boiling process. Besides, the method has the advantages of good stability and repeatability, simplicity in operation, accuracy and reliability.
Owner:JIANGNAN UNIV

Method for extraction and dissolution of hop acids in aqueous media

The present invention relates to a method for extraction and dissolution of hop acids, including alpha-acids, iso-alpha-acids, beta-acids and derivatives thereof, in aqueous media, comprising the formation of quaternary ammonium salts of hop acids with quaternary ammonium compounds or mixtures thereof; The invention further relates to, the use of quaternary ammonium salts of hop acids in the beer brewing process. The present invention further relates to a method for preparing a brewed beverage, particularly for brewing a beer, and in particular to a method to improve the utilization of hop acids, including alpha-acids and (reduced) iso-alpha-acids in the brewing process.
Owner:IFAST

Method for improving beer bitterness and storage stability by adding CO2 hop extract

The invention relates to a method for improving the beer bitterness and storage stability by adding a CO2 hop extract. The hop extract is added at 5-10 minutes before the fermentation stage of the beer brewing process, and the additive amount of the hop extract is 0.1-1 g / L. Accordingly, by adding the CO2 hop extract before the fermentation stage of the beer brewing process, harmful bacteria likely to appear in beer can be obviously inhibited; the phenomenon that the harmful bacteria grow and reproduce in the beer is avoided, the flavor and quality of the beer are guaranteed, iso-alpha-acid in the CO2 hop extract is stable in property and insensitive to light, and cannot generate the chemical substances of 3-methyl-2-butene-1-thiol-sunlight flavor after exposure to light, the phenomenon that iso-alpha-acid in the packaged beer generates the sunlight flavor after being subjected to a photogenic reaction is avoided, the stability of the beer can be effectively guaranteed, the possibility of beer deterioration is greatly lowered, and meanwhile the CO2 hop extract can improve the fermentation degree of the beer.
Owner:QILU UNIV OF TECH

Method for isomerisation of hop alpha-acids to iso-alpha-acids

The invention relates to a process for the production of iso-alpha-acids starting from alpha-acids in which an alpha-acid containing hop extract is mixed with a carbon-containing chemical compound with one or more functional groups containing a (basic) nitrogen atom with a lone pair (or mixtures thereof), either in solvent-free conditions or in the presence of solvents and preferably under an oxygen-free atmosphere. The resulting mixture is subjected to a temperature of at least 278 K for a time sufficient to effect the intended conversion of the alpha-acid reactant into the iso-alpha-acid product. The present invention further relates to iso-alpha-acid compositions obtained by said improved isomerisation process and to the use of said iso-alpha-acid compositions as bittering formulation and / or as source to obtain reduced or hydrogenated iso-alpha-acid compositions.
Owner:IFAST

Antifoam from hop extract

A mixture of the hard resins, lipids and waxes obtained by solvent extraction of hops can be effectively utilized in brewing processes to suppress foaming. The mixture is typically the residue obtained by extraction of hops with liquid carbon dioxide, or other solvents, followed by extraction of alpha acids, beta acids and essential oils from the whole hop extract. The mixture of natural products is at least as effective as silicone antifoams, and has been shown to improve fermentation rates because the presence of hop lipids has a positive effect on yeast metabolism.
Owner:BOTANIX

Agricultural pesticide for preventing bacteriovirus infection for crops and its use method

The present invention relates to a pesticide for preventing and controlling bacterial virus infection of crops and its application method. It is mainly characterized by that in (by weight percentage content) 1-40% of salicylic acid or acetyl salicylic acid successively are added 0.5-30% of antimicrobial ammine or ampicillin, 0.5-80% of mercuric chloride or potassium hypemanganate, 0.5-60% of glutaraldehyde or ethyl thiosulfonate, 0.5-60% of acetic acid or alpha acid and 1-15% of 885 synergist or HP-1 synergist. Said pesticide is high in curative effect and its treatment is complete.
Owner:郑山永 +1

Agent for improving alpha acid content or hop oil content in hop

To provide a hop alpha acid or hop oil content enhancer, which increases the content of a hop alpha acid or a hop oil. A hop alpha acid or hop oil content enhancer, which comprises 5-aminolevulinic acid, or a derivative thereof represented by the following formula (1), or a salt thereof as an active ingredient: R2R1NCH2COCH2CH2COR3 (1), wherein R1 and R2 each independently represents a hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group, an aryl group, or an aralkyl group; R3 represents a hydroxyl group, an alkoxy group, an acyloxy group, an alkoxycarbonyloxy group, an aryloxy group, an aralkyloxy group, or an amino group.
Owner:COSMO TRADE & SERVICE CO LTD

Preparation of light stable hops

Disclosed are methods for the production of light stable hops, useful for the brewing of beer or ale to be stored in clear or green glass containers, which beer or ale will not develop objectionable flavor as a result of exposure to light. Light stable hops are prepared by double extraction of liquid / supercritical CO2 extracted hop solids with ethanol to remove alpha / iso-alpha-acids. Such alpha / iso-alpha-acids may be further removed from the ethanol extraction liquor obtained in the double extraction process by subjecting such liquor to an ion exchange medium, or precipitation by a metal ion, heavy metal ion, or alkali metal ion, to provide an alpha / iso-alpha-acids free extraction liquor which may be added to the light stable hops residue obtained in the initial double extraction process.
Owner:MILLERCOORS

Method for measuring alpha acid and beta acid in hop by ion pair chromatography

The invention relates to a method for measuring alpha acid and beta acid in hops by an ion pair chromatography, which is characterized by comprising the following steps: a, preparing samples: preparing a hops tinctures sample by weighing a given weight of hops tinctures, diluting the hops tinctures with four to six times of chromatographic pure methanol in proportion by weight and filtering the diluted hops tinctures with 0.25 mu m of an organic phase filter membrane; preparing hops extractum by weighing a given weight of extraxtum, dissolving the hops extractum with 380-420 times of chromatographic pure methanol in proportion by weight and filtering the dissolved hops extrantum with 0.25 mu m of the filter membrane; and b, analyzing the prepared samples in step a by a diode-array detector of a liquid chromatogram. Compared with an original method for analyzing alpha acid and beta acid in hops, the method uses ion pair agent to avoid using strongly acid mobile phase, realizes better separation effect for alpha acid and beta acid than that of the current method, has good repeatability and recovery rate of experiments and is suitable for analysis of large quantities of samples.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Compositions exhibiting inhibition of cyclooxygenase-2

The invention provides a method of treating diabetes by administering to an individual having diabetes a composition containing a hops extract. In a particular embodiment, an individual having diabetes can be administered a composition comprising a first component selected from the group consisting of alpha acids and beta acids, essential oils, fats and waxed, with the proviso that the first component and second component are not the same compound. The invention additional provides a method of treating diabetes by administering to an individual having diabetes a composition comprising a first component selected from a curcuminoid and a second component selected from an alpha acid and a beta acid.
Owner:METAPROTEOMICS
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