IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Perception of Rose Oxide Enantiomers, Linalool and α-Terpineol to Gewürztraminer Wine Aroma

Perception of Rose Oxide Enantiomers, Linalool and α-Terpineol to Gewürztraminer Wine Aroma

Abstract

Monoterpenes are important aroma compounds in white wines. Many monoterpenes are chiral and the chiral forms have different aroma qualities. Rose oxide is an important chiral compound found in Gewuztraminer wines. The enantiomers of the chiral rose oxide are found to vary in wines. The difference sin the enantiomeric ratios have the potential to alter wine aroma, as well as change aroma qualitities when in combination with other monoterpenes. The aim of this study was to evaluate rose oxide enantiomers at different ratios and the interaction of rose oxide with linalool and alpha-terpineol. Twelve compound combinations were tested in a dearomatized wine with diffferent ratios of rose oxide and combinations with linalool and alpha-terpineol. Triangle tests, check-all-that-apply (CATA) and descriptive analysis were used to evaluate the aroma of the wine treatments. Results show that the ratio of rose oxide enantiomers did alter aroma. Additionally, descriptive analysis showed that the rose oxide enantiomer ratios altered aroma when linalool and alpha-terpineol were at low and medium concentrations, influenceing grapefruit, lychee and stone fruit aromas. At high concentrations, linalool and alpha-terpineol mask rose oxide, resulting in wines described as tropical fruit, ginger, rose and honeysuckle. Understanding how monoterpenes alter aroma perception of white wines when at different combinations and concentrations is important to achieve desired wine qualities and helps provide information on interpreting flavor chemistry information

DOI:

Publication date: June 23, 2022

Issue: IVAS 2022

Type: Article

Authors

Tomasino Elizabeth¹, Chigo-Hernandez Mildred Melina¹ and DuBois Aubrey¹

1Oregon State University

Contact the author

Keywords

check-all-that-apply, triangle test, monoterpenes, chiral, descriptive analysis

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Significance of factors making Riesling an iconic grape variety

Riesling is the iconic grape variety of Germany and accounts for 23% of the German viticulture acreage, which comprises 45% of the worldwide Riesling plantings. Riesling wines offer a wide array of styles from crisp sparkling wines to highly concentrated and sweet Trockenbeerenauslese or Icewines. However, its thin berry skin makes Riesling more vulnerable to detrimental environmental threats than other white wine varieties.  

Malolactic fermentation in wine production

What influence do these bacteria have on wines? What new bacteria are being studied to carry out this fermentation? Find below articles about malolactic fermentation published in our 3 media (OENO One, IVES Technical Reviews and IVES Conference Series). OENO One...

Metabolomics screening of Vitis sp. interspecific hybrids to select natural ingredients with cosmetic purposes

Introducing natural ingredients using green chemistry practices is a major challenge in cosmetics industry to follow the market trend. Among the plants of cosmetic interest, vine products show a remarkable diversity of natural substances with high potential for the cosmetic and dermatological sectors. To date, research focuses on well-known compounds like E-resveratrol and E-ε-viniferin,

WAC 2022: Abstracts are available on IVES Conference Series

In order to disseminate the scientific results presented during the WAC 2022 , the organizers have decided to share the abstracts of the oral communications and posters with Open Access on IVES Conference Series. The fifth edition of the International Conference...

Winemaking techniques and wine tasting methods at the end of the Middle Ages

Les pratiques de vinification et de dégustation du vin sont souvent perçues, à travers un discours marketing très puissant, sous l’angle d’une tradition millénaire qui perdure depuis le Moyen Âge. En Bourgogne, il est courant de rattacher les racines de ces pratiques à l’activité des institutions ecclésiastiques qui possédaient d