terclim by ICS banner
IVES 9 IVES Conference Series 9 OIV 9 OIV 2024 9 Short communications - Oenology, methods of analysis 9 Consumer acceptance of sweet wines produced by stopping fermentation with octanoic and decanoic acids

Consumer acceptance of sweet wines produced by stopping fermentation with octanoic and decanoic acids

Abstract

The use of medium chain fatty acids for arresting the fermentation and producing sweet wines was investigated at industrial level. Doses of 10 mg/l of octanoic or decanoic acid and a combination of 5+5 mg/l octanoic and decanoic acid were used to produce sweet wines of tamaioasa romanească variety in volumes of 3000 l. As using these acids also leads to some concentrations of their corresponding ethyl-esters, with potential impact on the aromatic profile, it is important to have the wines evaluated by consumers. The resulted wines were evaluated by novice consumers, as well as by professional tasters. Consumers appreciated equally the wines treated with 10 mg/l decanoic acid and the control wines, while professionals assigned significantly higher scores for wines treated with 10 mg/l of either octanoic or decanoic acid, compared to controls. The samples treated with the combined dose of 5+5 mg/l octanoic and decanoic acid were not preferred by either consumers or professional tasters. Thus, the variant with decanoic acid appears to be the one most preferred by both consumers and professionals. Sensory profiles of experimental wines are also presented and discussed.    

Acceptation par des consommateurs des vins doux produits par arrêt de la fermentation avec acides octanoïque et décanoïque

L’utilisation d’acides gras à chaîne moyenne pour arrêter la fermentation et produire des vins doux a été étudiée au niveau industriel. Des doses de 10 mg/l d’acide octanoïque ou décanoïque et une combinaison de 5+5 mg/l d’acide octanoïque et décanoïque ont été utilisées pour produire des vins doux de la variété tamaioasa romanească dans des volumes de 3000 l. Comme l’utilisation de ces acides conduit également à certaines concentrations de leurs esters éthyliques correspondants, ayant un impact potentiel sur le profil aromatique, il est important de faire évaluer les vins par les consommateurs. Les vins obtenus ont été évalués par des consommateurs novices, ainsi que par des dégustateurs professionnels. Les consommateurs ont préféré autant les vins traités avec 10 mg/l d’acide décanoïque que les vins témoins, tandis que les professionnels ont attribué des notes significativement plus élevées aux vins traités avec 10 mg/l d’acide octanoïque ou décanoïque. Ainsi, la variante à base d’acide décanoïque apparaît comme la plus appréciée tant par les consommateurs que par les professionnels. Les échantillons traités avec la dose combinée de 5+5 mg/l d’acide octanoïque et décanoïque n’ont été préférés ni par les consommateurs ni par les dégustateurs professionnels. Les profils sensoriels des vins expérimentaux sont également présentés et discutés.

Aceptación para los consumidores de vinos dulces elaborados a partir de detención de fermentación con ácidos octanoicos y decanoicos

Se investigó a nivel industrial el uso de ácidos grasos de cadena media para detener la fermentación y producir vinos dulces. Se utilizaron dosis de 10 mg/l de ácido octanoico o decanoico y una combinación de 5+5 mg/l de ácido octanoico y decanoico para producir vinos dulces de la variedad tamaioasa romanească en volúmenes de 3000 l. Como el uso de estos ácidos también conduce a algunas concentraciones de sus correspondientes ésteres etílicos, con un impacto potencial en el perfil aromático, es importante que los consumidores evalúen los vinos. Los vinos resultantes fueron evaluados tanto por consumidores novatos como por catadores profesionales. Los consumidores prefirieron por igual los vinos tratados con 10 mg/l de ácido decanoico y los vinos de control, mientras que los profesionales asignaron puntuaciones significativamente más altas a los vinos tratados con 10 mg/l de ácido octanoico o decanoico. Así, la variante con ácido decanoico parece ser la preferida tanto por consumidores como por profesionales. Las muestras tratadas con la dosis combinada de 5+5 mg/l de ácido octanoico y decanoico no fueron las preferidas ni por los consumidores ni por los catadores profesionales. También se presentan y discuten los perfiles sensoriales de vinos experimentales.

Publication date: November 18, 2024

Issue: OIV 2024

Type: Article

Authors

George Adrian Cojocaru¹, Arina Oana Antoce¹, Cornel Baniţă¹

¹ University of Agronomic Sciences and Veterinary Medicine of Bucharest, Faculty of Horticulture, Department of Bioengineering of Horti-Viticultural Systems, 59 Mărăști Ave., Sector 1, Bucharest, Romania

Contact the author*

Tags

IVES Conference Series | OIV | OIV 2024

Citation

Related articles…

Non-alcoholic wines: evaluation of chemical profile and biological properties

The market of non-alcoholic wine has notably increased in recent years, driven by growing health awareness and regulatory trends aimed at reducing alcohol consumption.

Exploring diversified service offerings in the Spanish wine industry

The spanish wine industry stands at a crossroads, transitioning from a traditional emphasis on wine production to a landscape increasingly characterized by diversified service offerings. This paper delves into the nuances of servitization within spanish wineries, investigating the determinants of servitization and the impact of these diversified services on revenue streams. The paper posits hypotheses concerning the influence of various factors, such as winery size, location, market orientation, ownership structure, market competition, regulatory environment, market demand, firm capabilities, owner characteristics, and firm age, on the adoption of diversified service offerings in spanish wineries. The methodology involves comprehensive regression analysis to unravel the drivers of servitization within this context.

The heritage behind the very old vineyards – The novelty with tradition for the future 

In Portugal, the prospection and conservation of representative samples of intra-varietal variability of grapevine has been carried out for 46 years, and in 2010 an infrastructure was created for the conservation of all these genetic resources – the portuguese association for grapevine diversity (porvid) experimental centre for the conservation of grapevine diversity. the aim is to save the genetic identity of ancient varieties to prevent their imminent loss and to preserve the raw material for current and future selections, thus adding economic value and sustainability to the vine and wine sector.

Linear sweep voltammetry to classify and characterize the antioxidant properties of tannins

In recent years, numerous studies have been carried out at the OIV on oenological tannins, both with regard to oenological properties and methods of characterization. The results of these recent studies have led to the revision of the general monograph and the drafting of four new monographs, one for each of the four chemical classes into which the tannins have been grouped: ellagitannins, gallotannins, procyanidins/prodelphinidins, profisetinidins/prorobinetinins.

Enhancing vineyard resilience: three years of weather-based disease modeling in Moldova’s precision viticulture

Due to ongoing climate change, managing vineyard diseases has become increasingly challenging in the Republic of Moldova.