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Download Abstracts science sixtythird63 national conference a platform for progress 63rd ASEV National Conference June 18–22, 2012 Portland Marriott Downtown Waterfront Hotel Portland, Oregon USA TECHNICAL ABSTRACTS american society for enology and viticulture 2012 National Conference Technical Abstracts Oral Presentation Abstracts Wednesday, June 20 Enology — Microbiology ....................................................................51–56 Viticulture — Grape Anatomy ............................................................57–60 Enology — Molecular Biology ............................................................61–64 Enology — Sensory .............................................................................65–68 Viticulture — Pests & Diseases ...........................................................69–72 Enology — Wine Flavor .....................................................................73–76 Viticulture — General .........................................................................77–79 Thursday, June 21 Viticulture — Water Relations ............................................................80–83 Enology — Wine Stability & Oxidation .............................................84–86 Enology — Phenolics ..........................................................................87–90 Viticulture — General .........................................................................91–94 Enology — General .............................................................................95–98 Viticulture — Berry Ripening ...........................................................99–101 Poster Presentation Abstracts Wednesday, June 20 and Thursday, June 21 Enology ................................................................................................. 102–124 Viticulture ............................................................................................ 125–156 Industry ............................................................................................... 157–163 NOTE: pp. 1-48 constituted the program section of the original printed Program and Technical Abstracts booklet. Abstracts are listed in the approximate presentation order as scheduled in the conference program. Abstracts are those submitted and accepted through the 2012 Call for Abstracts. june 18th – 22nd, 2012 — portland, oregon 49 2012 National Conference Technical Abstracts CONTINUED sixtythird63 national conference Alphabetical Listing of All Authors with Submitted Abstracts Agüero, C.B. ..............69 Golitko, D.T. ...........111 Rodriguez, D. .......... 162 progress Aguilar Solis, M.L.A. .. 102 Gu, S. ......................135 Roig, D. ...................146 Alabi, O.J. ..................69 Hall, H.L. ..................54 Rutan, T. ....................66 Anderson, M. ...........125 Harbertson, J.F. ..........87 Sacks, G.L. .........99, 147 Aoki, Y. ....................126 Harris, J.L. ...............136 Sánchez, L.A. .............59 Battany, M.C. ...127, 128 Heinitz, C. .................83 Schopp, L.M. ...........115 Bell, M. Hellman, E.W. .........137 Schwartzburg, L.A. ....51 .....................88 a platform for science Bettiga, L.J. ................82 Holland, T.C. ...........138 Scotti, B. ..................163 Bohanan, L.P. .............68 Hopfer, H. .........67, 112 Secor, A.C. ...............116 Bokulich, N.A. ...........64 Joseph, C.M.L. ..........62 Shaposhnikova, O. ...147 Bondada, B. ...............60 Keller, T. ..................158 Shay, N.F. ..................95 Bonnefoy, C. ............129 Kennedy, U.J. ...124, 125 Shellie, K. ................148 Botezatu, A. ...............73 Kilmartin, P.A. ...........91 Shrestha, A. ..............149 Boulton, R.B. ......84, 86 King, E.S. ..........65, 112 Sieber, E. ....................55 Bowen, P. ...................78 Krasnow, M.N. ...72, 139 Skinkis, P.A. ...............71 Buscema, F. ................96 Krieger-Weber, S.A. ...159 Sommer, S. ..............117 Calderon-Orellana, A. ..81 Lakso, A.N. ................92 Stafne, E.T. ..............150 Carew, A.L. ..............102 Lambert, J.J. ..............93 Stewart, A.C. ..............91 Carrau, F. ...........56, 105 Lange, J. .....................52 Stockert, C.M. .........151 Casassa, L.F. ...80, 103, 104 Langone, D. .............139 Stoumen, M. ............118 Childs, B.C. .............106 Laurie, V.F. .................85 Strickland, M. ..........119 Collins, T.S. ...............74 Liang, X. ..................113 Sudano, A.M. .............97 Cousins, P. ...............130 Link, M. ..................159 Tarara, J.M. ..............152 Cragin, J. .................131 Lund, K. ....................70 Thomas, D.H. .........157 Curtis, M. ................131 Mac Cawley, A.F. ........96 Threlfall, R.T. ..........120 Dami, I.E. ................132 Maccario, J. ..............160 Tozzini, L. ................153 Davis, P.M. ..............106 McCarthy, B.............140 Vance, A.J. .................77 Deluc, L. ....................99 McElorne, A.J. ...........58 Villamor, R.R. ....75, 121 Dokoozlian, N. ..........77 Michel, J. .................114 von Wallbrunn, C. ...122 Duval, C.J. .................76 Mira de Orduña, R. ...53 Walker, G.A. ..............61 Dycus, D.A. .............107 Naidu, R.A. ..............141 Waterhouse, A.L. .......85 Fay, M.S. ..................108 Nail, W.R. ................142 Waters L. ...................84 Feng, H. ..........133, 134 Nunez-Barrios, A. ....143 Weaver, R. ...............153 Fidelibus, M.W...........79 Osorio, C.G. ............143 Williams, L.E. ..........154 Fort, K. ......................94 Oungoulian, S. ........100 Yu, Y. .........................89 Frohman, C.A. .........108 Pagay, V. .....................82 Zhang, Y. .................155 Gawel, R. ...................65 Petrova, B. ...............115 Zhou, Q. .................123 Gerbaux, V. ..............109 Pinnell, S. ................144 Zhuang, S. ...............156 Goffinet M.C. ...........57 Poojari, S. ................145 Zuehlke, J. ...............120 Gohil, H.L. ..............135 Reichwage, M. ...........90 Goldfarb, D.M. .......110 Remy, A. ..................161 Richter, C. .................63 50 american society for enology and viticulture Wednesday National Conference Oral Presentation Abstracts (Research Reports) 2012 NATIONAL CONFERENCE TECHNICAL ABSTRACTS CONTINUED Enology — Microbiology Session Impact of Oxygen Alterations in Chardonnay Juice on Fermentation Behavior with Different Yeast Strains Lauren A. Schwartzburg and Linda Bisson* *Department of Viticulture and Enology, University of California, Davis, CA 95616 ([email protected]) In order to assess the impact of prefermentation alterations of oxidative con- ditions in Chardonnay juice, 25 small-scale fermentations were carried out. Treatments varied in oxidative aerations or deficits and five different yeast strains were used. The oxidative conditions of the juice were altered at vari- ous points in the fermentation to determine optimal processing conditions. The treatments ranged from aeration or sparging with nitrogen prefermenta- tion to aerations at a specific time point in the fermentation or postfermen- tation or receiving no intentional oxygen introduction. These treatments were intended to mimic realistic production practices in winemaking. Dis- solved oxygen readings of the various conditions indicated negligible impact of oxygen introduction or mixing to the juice. Dissolved oxygen readings ranged from 0.05 to 0.12 mg/L and did not stabilize efficiently. Several factors could have influenced this observation, including enzymatic activity of the juice or sensitivity of the instrumentation. The yeast strains used in- cluded three MET10-932 Phyterra strains (P1Y0, P2Y3, and P7Y9) and two strains that contained the wild type MET10 gene (CY3079 and EC1118). Preliminary results indicated a significant difference in the fermentation rate of P7Y9 from all other strains used, with P7Y9 taking an average 10 days longer than all other strains to complete primary fermentation. An addi- tional benefit of this research was the examination of theMET10 -932 yeast strains that have proven in a laboratory setting to be low in producing H2S. As Chardonnay juice has historically produced H2S in primary fermenta- tion, application of the yeast strains proved to be effective in determining fermentation capabilities of these newly identified strains. Significant differ- ences among treatments within the same strain were not observed in any of the strains in the context of fermentation rates. This practical application is useful in aiding industry decisions in prefermentation processing treatments. Funding support: University of California, Phyterra, and Jordan Vineyard and Winery Table of Contents List of Authors *indicates corresponding author june 18th – 22nd, 2012 — portland, oregon 51 Wednesday National Conference Oral Presentation Abstracts (Research Reports) sixtythird63 national conference 2012 NATIONAL CONFERENCE TECHNICAL ABSTRACTS CONTINUED Enology — Microbiology Session – CONTINUED Saccharomyces cerevisiae Population Dynamics during Inoculated progress and Spontaneous Fermentations at Three British Columbia Wineries Jessica Lange, Daniel M. Durall,* Liz Halverson, and Amy Kluftinger *Irving K Barber School of Arts and Sciences, University of British Columbia Okanaga, 3333 University Way, Kelowna BC V1V 1V7, Canada ([email protected]) The population dynamics of Saccharomyces cerevisiae wine yeast strains during a platform for science inoculated and spontaneous
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