PDF Publication Title:
Text from PDF Page: 003
US 7,413,758B2 34 chemical and biological transformations, an essence and ?a vorant can be prepared for addition to an unhopped beer. These kettle hop ?avor essences and ?avorants provide economy,consistency,?exibility,qualityandconvenienceto the brewing process because only one unhopped Wort is required to breW a stock of unhopped beer, Which can then be dosed With the desired amount of kettle hop ?avor essence and ?avorant. acids, the treated hop solids are mixed With a second alcohol solvent to form a mixture of the treated hop solids and the second alcohol solvent, and the mixture of the treated hop solids and the second alcohol solvent is separated into hop solidsresiduesandasecond?ltrateincludingalpha/iso-alpha acids,Whereinalightstablehopproductcomprisingthehop solids residues is formed. The exhaustive extraction (double extraction,orDX)ofhopsolidsyieldshopsolidsresiduesand ?ltratescontainingmostofanytracealpha/iso-alpha-acids. InUS. Pat.Nos.5,013,571and5,013,572,Hayteaches methodsforconvertingalphaacidstohopbittering?avorsby Inasecondaspectofthepresentinvention,the?rst?ltrate exposing the alpha acids to an environment capable of isomeriZing and reducing the alpha acids to form either tet rahydroiso-alpha-acids or hexahydroiso-alpha acids, and then steam stripping odor forming impurities from such to producepuri?edlightstablehopbiteringcompounds. and/or the second ?ltrate may then be subjected to further processing. In one version of the second aspect of the inven tion,the?rst?ltrateand/orthesecond?ltrateareappliedtoan ionexchangeremovalofthealpha/iso-alpha-acidsinthe?rst ?ltrate and/or the second ?ltrate from the double extraction, folloWedbyreturnofthee?luentfromtheionexchangetothe hop solidsresiduesofthedoubleextraction,andfolloWedby concentration of this mixture to obtain a more ?avorful light Inadditiontotheabove,US. Pat.No.4,002,683,ofTodd, Jr.,teachesaprocessforisomeriZingalphaacidstoiso-alpha acids by contact With an aqueous solution of a metal ion to formmaterialssuitableforuseasbitteringadditives,Wherein stablehopproduct.Inanotherversionofthesecondaspectof aWater-immiscibleorganicsolventinWhichthealphaacidis20 solubleisemployed.Todd,Jr.,alsoteaches,inUS. Pat.Nos. 4,666,731and4,844,939,theseparationoftheconstituentsof CO2 Hop Extracts employing aqueous alkali, folloWed by conversion of the separated alpha acid fraction into an iso alphaacidorisohumulonefractionusefulinthebitteringof25 beer.Moreover,Todd,Jr.etal.teach,inUS. Pat.Nos.4,778, 691 and 4,956,195, the removal of odor-forming impurities fromhop?avorsbyextractingintoWateratapH above5,and separatingtheaqueousphasecontainingtheimpuritiesfrom thealpha/iso-alpha-acidsinthe?rst?ltrateand/orthesecond thepuri?edhop?avors,torecovera?avoringagentselected30 ?ltratefromthedoubleextraction,folloWedbyreturnofthe fromunreducedandreducedalphaacidsandiso-alpha-acids ?ltrateofthehydrogenationtothehop solidsresiduesofthe Whichisessentiallyodor-causing-impurityfree.And,inUS. doubleextraction,andfollowedbyconcentrationofthismix Pat. No. 5,073,396, Todd, Jr. teaches the use ofa non-acidic hop ?avor fraction for production of beer, Wherein the hop ?avorfractionismadefromCO2hopextracttoprovidean 35 extractessentiallydevoidofalphaandbetaacids,byfraction breWsWerecon?rmedtobelightstable,andthehopproducts ation of the hop extract With an alkaline solution Within con trolledpHranges.InUS Pat.No.5,296,637,Steginketal. teach production of odor-free tetrahydroisohumulates from alphaacidsviathetetrahydrohumulatesandsubsequent40 isomeriZation. Thus, there are a number of processes for the preparation, separation, puri?cation, and use ofhop bittering ?avors for beer.HoWever,amethodfortheproductionoflightstablehop productscontaininglitleornoalpha/iso-alpha-acids,Which 45 also impart hop aroma and ?avor to the breWing of beer equivalent to or comparable to the aroma and ?avor attained from the use of conventional Whole hops or hop pellets, has notpreviouslybeenprovided. 50 SUMMARY OF THE INVENTION attributes. In a ?rst aspect, the present invention is a method for the preparation of a light stable hop product. In the method, hop solidsaremixedWitha?rstalcoholsolventtoformamixture ofthehopsolidsandthe?rstalcoholsolvent,themixtureof65 the hop solids and the ?rst alcohol solvent is separated into treated hop solids and a ?rst ?ltrate including alpha/iso-alpha employed made a contribution to kettle hop ?avor attributes ofthebeer.Stillfurther,itWas foundthatthelightstablehop products could be reconstituted With: (i) a hop oil fraction (HOF),thatis,asolvent(e.g.,CO2)hopextractinWhichthe alpha acids are removed and a portion of the beta acids are removed leaving, among other things, hop oils and beta acids, (i) a beta-acid rich fraction, that is, a solvent (e.g., CO2) hop extractinWhichthealphaacidsareremovedleav ing,amongotherthings,hopoilsandbeta-acids,and/or(i) light stable bittering agents (e.g., hydrogenated iso-alpha acids)toyieldafurther?avorimprovementWithoutcausing lightinstabilityinbreWedproduct. Itisthusanadvantageofthepresentinventiontoprovidean inexpensivemethodforthepreparationoflightstablehop products,Whichareusefulinprovidinghop?avorandmouth feelforbreWedproducttobepackagedinclear,?intorgreen bottles. Such breWed product is found to be less subject to skunk ?avor resulting from exposure to light over time. The present invention provides means for providing light stable hop products Which impart hop aroma and ?avor to beerWhenusedinpreparingbeer,Withoutthepotentialfor 55 lightsensitivityinthebeerresultinginskunkiness.Several techniques have been employed to prepare light stable hop products that can be used to prepare light stable beers. Beers preparedusingtheselightstablehopproductsWereevaluated tionoflightstablehopproductsWhichareusefulinproviding bysensorytestingforlightstabilityandacceptablehop?avor60 theinvention,the?rst?ltrateand/orthesecond?ltrateare subjectedtoametalionprecipitationtreatmentremovalofthe alpha/iso-alpha-acids in the ?rst ?ltrate and/or the second ?ltrate from the double extraction, folloWed by return of the ?ltrateoftheprecipitationtreatmenttothehopsolidsresidues ofthedoubleextraction,andfolloWedbyconcentrationof thismixturetoobtainalightstablehopproduct.Inyetanother version of the second aspect of the invention, the ?rst ?ltrate and/or the second ?ltrate are subjected to hydrogenation of ture to obtain a light stable hop product. When the light stable hop products of these techniques WereusedinthepreparationofbreWedbeer,theresulting DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for the prepara hop?avorandmouthfeelforbreWedproducttobepackaged in clear, ?int or green bottles. The method includes the steps of mixing hop solids With a ?rst alcohol solvent to form a mixture of the hop solids and the ?rst alcohol solvent, sepa ratingthemixtureofthehop solidsandthe?rstalcohol solventintotreatedhopsolidsanda?rst?ltrateincluding alpha/iso-alpha acids, mixing the treated hop solids With a second alcohol solvent to form a mixture of the treated hopPDF Image | PREPARATION OF LIGHT STABLE HOP PRODUCTS
PDF Search Title:
PREPARATION OF LIGHT STABLE HOP PRODUCTSOriginal File Name Searched:
US7413758.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |