PREPARATION OF LIGHT STABLE HOP PRODUCTS

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PREPARATION OF LIGHT STABLE HOP PRODUCTS ( preparation-light-stable-hop-products )

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11 a24-pointlinearscale,Where 1isWeak,and24isstrong.The resultsaresetforthinTable4. 12 LightStable # Hop Product # 0 Unhopped 8661 1 Galena Jop Solids 8662 2 Cascade Hop Solids 8663 #15-CuCl #16-CuCl #18'ZHSO4 #19—Zn(OAc)2 #2343); Prediction Exposed/None Skunkiness 31A-1X4pH8 41B-1X4pH8 5 3A-1X4 neutral 6 3B-1X4 neutral 7 4A-CuSO4 8 4B-CuSO4 9 5A—Cu(OAc)2 10 5B-Cu(OAc)2 11 6A-3X4 neutral 12 6B-3X4 neutral 13 7A-ca(on)2 14 7B-ca(on)2 15 8A-CuCl 16 8B-CuCl 17 9A-ZnSO4 18 9B-ZnSO4 19 10A—Zn(OAc)2 20 10B-Zn(oAe)2 21 llA-SWS 22 llB-SWS 23 12A-DX 24 12B-DX 2513A-DX+HCF 26 13B-DX+HCF LS-Hops #4_1X4pH8 #6-1X4neutral #10—Cu(OA)2 8664 0.010 (0.02) 8666 0.014 (0.20) 8665 0.046 (0.65) 8667 0.003 (0.03) Marginal Yes Marginal 15.8/2.9 4.8/3/1 i 2.9/2.6 4.4/2.5 3.8/2.6 4.0/3.7 4.1/3.2 2.7/3.0 4.3/3.2 2.9/2.7 6.7/2.7 8.9/2.6 10.3/2.8 6.1/2.6 2.7/2.3 3.6/2.8 3.0/2.7 BreW Iso-ot-acids Stability SensoryScore % (ppm) None 0.11 (2.20) 0.080 (1.60) Yes 3.4/2.9 No 17.0/2.9 No 14.5/2.9 Yes 10/3/30 Yes 4.9/3.0 none very strong very strong strong trace very strong trace Discarded none trace none none nOne nOne trace none slight moderate strong slight nOne trace nOne 0.037(0.60) 8671 0.014 (0.18) Yes 0.019(0.16) Marginal 8672 0.010 (0.07) Yes 8673 0.015 (0.18) Yes 0.036 (0.48) NO 8674 0.012 (0.10) Yes 8683 0.017 (0.25) Yes 8675 0.042 (0.66) NO 8676 0.010 (0.12) Yes 0.013 (0.11) Yes 8681 0.021 (0.31) Yes 8682 0.023 (0.30) Marginal 8677 0.029 (0.51) Marginal 8678 0.110 (1.69) NO 8684 0.085 (1.57) NO 8679 0.017 (0.32) NO 8680 0.016 (0.28) Yes 8685 0.048 (0.09) Yes 8686 0.016 (0.03) Yes US 7,413,758B2 PilotbreWsWerepreparedandcharacterizedinroundtable sensory evaluation, based upon promising results in light stability testing. The purpose of such testing Was to obtain a descriptivepro?leofeachunexposedlightstablehopproduct candidate.TheCascadebasedlightstablehopproductcan- #113)“neutral 8673Slight?lmy;slightlhopyaroma;hoppy - - d1dates seemed to have stronger, fruity/estery notes than the _ _ _ Galena based light stable hop product candidates. Panelists ?avor; slight lingering aftertaste; malty . _ 8674 LoW aromaandfruity,lowtomoderatehop aroma; slighthoppytastg; Slightlymalty 8683Fruity/estery;hoppytaste;hoppyaroma; Shght“nus‘aroma;Shghthng?nng a?emst?;Slightmouthcoat 8675 Slightfruity;hoppy aroma; slightmalty; hnggringa?maste 8676 LoWtomoderatefruity;hoppyaroma;hoppy taste;Slightmetalic;Slightastringent 8681 LOW“) modmw fmlty/lest?ry;hIOPPYaroma; 010W; Solventaroma; Slightastringent 8682 LoWtomoderatefruity;clovesolvent aroma;malty;hoppytaste;Sulfur 3679 Slightfruity;10Wmalt;harsh;lingring aftertaste alsoindicatedpreferencesforpilotbreWs8680,8686,8676, 10 #14—Ca(OAc)2 8683,8667,8672,and8673.Ofthese,onlythelastWasbased uponaGalenabasedlightstablehopproduct Theseevalua- _ _ ' tions are shoWn1n Table 4. A general good correlation betWeen sensory scores (skunkiness)andanalyticaliso-alpha-acidcontentdemon- 15 strated that the limited iso-alpha-acids present in the Pilot BreWs prepared from loW iso-alpha-acid content light stable . . hop product Were less subJect to skunkiness, and Were more acceptable.Analysis indicatedthatlightstablehop products preferablyhaveiso-alpha-acidcontentsoflessthan0.2-0.3 20 TABLE 3 Sumrn ofLi tStabili and Skunkiness TABLE 4 SensoryRoundTableEvaluation MW RB. RoundTableEvaluation 8666 Slightfruity/awry;10WaromaStmngth;lowto moderate‘ Sul?ir' slight hop aroma‘ slightly ’ I ’ ’ malty;Wat?r/thm I 8667 LoWtomoderatefruity;hoppyaroma;hoppy tast? 8672 Fruity/estery/banana;slighthoparoma;thin slightlingeringaftertaste;slightmetallic; slightsulfur 55 60 65 LS'HOPS #24-DX #25-DX+HOF #26-DX+HOF P'B' RoundTableEvaluation 8680 LoWtomoderatefruity/estery;lowtomoderate hop aroma; mod?rat? hop ?avor; Sul?lr; 10W afteitaste 8685 Hoppyaroma;hoppytaste;lingeringbitter a??rtast? 8686 Fruity/estery;10Waromastrength;fruity, ?oral,sinustastg;Slightlingering a?ertaste LS-Hops #13 C — a(OH)2 RB. RoundTableEvaluation TABLE 4-continued Sensog Round Table Evaluation TABLE 4-continued

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