WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 3 - WAC - Posters 9 Vitamins in musts : an unexplored field

Vitamins in musts : an unexplored field

Abstract

Vitamins are major compounds, involved in several prime yeast metabolic pathways. Yet, their significance in oenology has remained mostly unexplored for several decades and our current knowledge on the matter still remaining obscure to this day. While the vitaminic contents of grape musts have been approached in these ancient investigations, their vitameric composition have never even been investigated so far. To shed light onto this unexplored field, a novel HPLC procedure has been developed and validated for the simultaneous and direct analysis of 19 different vitamers from 8 different vitaminic groups (B1, B2, B3, B5, B6, B8, B9, C) in a one-hour chromatography run, that is exempted from any treatment of the sample prior to injection. This technique has allowed for the characterization of 85 white grape musts from different geographical origins, cultivars, as well as vintages. Noticeable patterns appeared in regard to the grapevines areas of cultivation, suggesting possible leads for further characterization. Overall, vitamins stand as highly diverse and versatile in concentrations, strongly varying between musts. This analytical tool could allow to further define the yeast nutritional requirements for vitamins, and, as such, better conduct the alcoholic fermentations in oenology in regards to possible deficiencies in grape musts, as well as allowing to investigate the influence held by vitamins in oenology in regards to wine aromatic profiles.

DOI:

Publication date: June 27, 2022

Issue: WAC 2022

Type: Article

Authors

Marie Sarah Evers, Hervé Alexandre, Christophe Morge, Celine Sparrow, Antoine Gobert, Chloé Roullier-Gall

Presenting author

Marie Sarah Evers – (1) Institut Universitaire de la Vigne et du Vin Jules Guyot, Université de Bourgogne, Dijon, France ; (2) Sofralab SAS, Magenta, France

Institut Universitaire de la Vigne et du Vin Jules Guyot, Université de Bourgogne, Dijon, France | Sofralab SAS, Magenta, France | Sofralab SAS, Magenta, France | Sofralab SAS, Magenta, France | Institut Universitaire de la Vigne et du Vin Jules Guyot, Université de Bourgogne, Dijon, France,

Contact the author

Keywords

vitamins – grape must – HPLC – oenology – winemaking

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Etude préliminaire des influences pédoclimatiques sur les caractéristiques quali-quantitatives du cépage aglianico dans une zone de la province de benevento-ltalie

The need to classify the vineyards of an area according to the quality of its wines is not recent, but it is only in the last ten years that studies on the suitability of different areas for the cultivation of vineyard take on an integrated and interdisciplinary character (Boselli, 1991). The definition of the suitability of the environment is thus obtained by making the climatic, pedological, topographical and cultural information interact with the vegetative, productive and qualitative expression of the grape varieties.

Phenolic compounds of wine spirits resulting from different ageing technologies: behaviour during the storage in bottle

Phenolic compounds are released from the wood into the wine spirit (WS) during the ageing process, and are of utmost importance to the colour, flavour, taste and the overall quality acquired by this spirit drink.1 Their concentrations in the WS and the related effects mainly depend on the kind of wood (oaks vs chestnut), toasting level and ageing technology (traditional using wooden barrels vs alternative).1,2,3

La variabilità del colore in vini rosati dell’Italia meridionale

Nei vini rosati, è il colore ad avere il primo impatto con il consumatore. Esso risulterà tanto più accattivante, quanto più elegante e raffinato si presenta.

Towards an ecological architecture inspired by underground cellars: An example of the thermal inertia of Moldovan underground cellars and new geothermal and Canadian well approaches

The search for underground shelters is one of the oldest forms of human habitation, providing refuge in extreme environments such as deserts and polar regions.

The current state and prospects for the development of viticulture and winemaking in Greece

Viticulture in Greece is the oldest, but in recent years there has been a reduction of areas intended for the production of wine products. The article contains data on viticulture in Greece. Over time, the land of Greek vineyards is fluctuating. There is a trend towards a decrease in areas in connection with the quota of products from the EU.