The objective of the study was to determine mannoprotein and tannin concentrations in Oregon Pinot noir wines but a beneficial tool was also discovered through this research. Winemakers often age red wines in barrel on the yeast lees to enhance texture and improve overall wine quality.
This study was initiated to better understand the evolution of polyphenolics (focus being proanthocyanidins, also known as tannins). Wine phenolics (tannins, anthocyanins, etc)
The success of both integrated pest management and organic production is critically dependent on naturally occurring insect biological control agents. Numerous studies (including some in vineyard systems) have indicated that populations of beneficial insects can be increased by increasing plant diversity (e.g., through cover cropping). Research targeted specifically at the situation in eastern Washington irrigated vineyards is therefore urgently needed.
Application of particle film will affect cluster weight and must soluble solids at harvest differently, depending on vine crop load and the level of water deficit. This research shows there is limited considerations for using particle film in wine grape production for water conservation, enhanced productivity, and improved product quality in vines. However, the product does protect berry size and soluble solids in berry if vines have sufficient water and are not in water deficit when product is applied. However, as heat waves continue to rise across vine growing regions, this particle film may be of use on well- irrigated vines if sprayed prior to the extreme heat event. This study shows that on intact fruit clusters the clay particle spray will protect the soluble solids in the berry.
Faulted wines pose a serious economic problem to the wine industry, these off flavors can cause consumers, new to a region or variety, to reject that region entirely. Wine faults can include off-aromas or flavors associated with chemical compounds produced by spoilage organisms Brettanomyces, Acetobacter, Pediococcus or Lactobacillus. From the producers and winemakers’ perspective, early detection of wine faults would allow for remediation before the fault becomes more serious, intractable, and costly. Research in wine fault detection continues to develop as more sensitive and rapid analytical methods are identified that can reflect the complexity of the faulted wine.
