Index Catalog // ScholarsArchive@OSU

Effects of cover crop and vineyard floor management on young vine growth, soil moisture, and weeds in an establishing vineyard in the Willamette Valley of Oregon

Creator:: Fredrikson, Levi
Abstract:: Five vineyard floor management treatments were evaluated in a young vineyard in western Oregon to better understand the effects on vine growth and nutrition, soil moisture dynamics, and weed control during 2009 and 2010. Treatments included two mulched treatments where mowed alleyway residue was transferred in-row at rates of 1x...
Resource Type:: Masters Thesis
Full Text:: . Barbara Bond and James Osborne, for their communication and encouragement as I developed this thesis

Development of a method to measure protein in red wines : a survey of protein, mannan and tannin in Pinot noir wines

Creator:: Smith, Mark R.
Abstract:: A number of methods to isolate and quantify protein in Pinot noir wines were evaluated. The combination of precipitation by acetone containing 10% w/v trichloroacetic acid followed by quantification with the Bradford assay, reported in yeast invertase equivalents yielded the most accurate results when compared to micro-Kjeldahl analysis. The technique...
Resource Type:: Masters Thesis

Yeast protein release during fermentation and aging in a model wine

Creator:: Rowe, Jeffrey D.
Abstract:: Yeast mannoproteins released during the process of aging wine on the yeast lees have been reported to make important contributions to wine quality. However, few mannoproteins have been identified in wine and their lifespan during aging is unknown. As a first step towards better understanding the contributions of yeast mannoproteins...
Resource Type:: Masters Thesis
Full Text:: Kennedy, Dr. James Osborne, Dan Smith, Jeff Clawson, and Bob Durst. I acknowledge Dr. James Osborne

Effect of berry integrity on proanthocyanidin extraction during wine production

Creator:: Cerpa-Calderon, Fiorella Karen
Abstract:: Proanthocyanidins are a grape-derived phenolic class of compound that provide wine with bitterness and astringency. Because of this, proanthocyanidins are considered to be essential components of wine quality. Proanthocyanidins are localized in the seed, skin and stem tissue of the grape berry and the composition of proanthocyanidins will vary depending...
Resource Type:: Masters Thesis

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Creator:: Aron, Patricia M.
Abstract:: Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
Resource Type:: Masters Thesis

Effects of Vineyard Managements on Grape and Wine Quality in Response to Grapevine Red Blotch Disease

Creator:: Huang, Ling
Abstract:: Grapevine red blotch virus (GRBV) is a single-stranded DNA virus that causes grapevine red blotch disease (GRBD). Symptoms of GRBD include red discoloring of leaf margins and red veins on the underside of the leaves. GRBD affects the plant's metabolism and photosynthetic pathways, and disrupts carbon translocation and chlorophyll concentrations....
Resource Type:: Dissertation
Full Text:: , James Osborne, Patricia A. Skinkis, and Yanping L. Qian for their advice and help during the research

Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

Creator:: Pigao, Kevin E.
Abstract:: The budding yeast Brettanomyces bruxellensis has the potential to spoil fermented beverages and cause financial losses, but also contribute positively to certain products such as Lambic beer. It is most notorious for causing “Brett” spoilage of wine, which is characterized by undesirable aromas such as “bandaid” and “barnyard”, therefore most...
Resource Type:: Masters Thesis
Full Text:: . CONTRIBUTION OF AUTHORS Funding for work in Chapter 3 was obtained by Dr. Chris Curtin and Dr. James Osborne

Influence of Fermentation Temperature and Nutrient Addition Schedules on Sensory and Chemical Characteristics of Traditional Honey Wine

Creator:: Twilley, John M.
Abstract:: Honey wine, also known as mead, is one of the oldest alcoholic beverages known to man. Made primarily from honey, water, and yeast, this beverage has recently been experiencing a resurgence in popularity. It is imperative that commercial producers focus on consistently creating quality products to differentiate themselves from competitors...
Resource Type:: Masters Thesis
Full Text:: will continue to aid me through my professional career. I would also like to thank Dr. James Osborne

Free Monoterpene Isomer Profiles in White Wine : Effect of Grape Variety, Region and Style and Impact on Odor Perception

Creator:: Song, Mei
Abstract:: Monoterpenes are important volatile compounds to the aroma of many white wines. Many monoterpenes are chiral and found in wine as different isomers. These isomers (also known as enantiomers) are non-superimposable mirror images of each other, maintain the same molecular structure and in many instances possess different sensory characteristics. Much...
Resource Type:: Dissertation
Full Text:: research design. I greatly appreciate the support from Dr. James Osborne on Pinot gris winemaking for my

Development of new analytical methods for aroma analysis and investigation of impact of native yeasts on wine aroma

Creator:: Zhou, Qin
Abstract:: Three analytical methods for determination of aroma compounds in alcoholic beverages were developed and validated. These methods are sensitive and reliable that can be applied to analyze volatile phenols, stale aldehydes as well as some highly volatile aromas in alcoholic beverages. In the first study, an ethylene glycol (EG) polydimethylsiloxane...
Resource Type:: Dissertation
Full Text:: Osborne, Dr. Tom Shellhammer, Dr. Vince Remcho and Dr. Donald Jump for serving as my committee members

ScholarsArchive@OSU

Effects of cover crop and vineyard floor management on young vine growth, soil moisture, and weeds in an establishing vineyard in the Willamette Valley of Oregon

Development of a method to measure protein in red wines : a survey of protein, mannan and tannin in Pinot noir wines

Yeast protein release during fermentation and aging in a model wine

Effect of berry integrity on proanthocyanidin extraction during wine production

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Effects of Vineyard Managements on Grape and Wine Quality in Response to Grapevine Red Blotch Disease

Enrichment Isolation of Brettanomyces Yeasts to Probe the Relationship Between Vineyard and Winery Populations

Influence of Fermentation Temperature and Nutrient Addition Schedules on Sensory and Chemical Characteristics of Traditional Honey Wine

Free Monoterpene Isomer Profiles in White Wine : Effect of Grape Variety, Region and Style and Impact on Odor Perception

Development of new analytical methods for aroma analysis and investigation of impact of native yeasts on wine aroma

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