IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Vitamins in grape must: let’s lift a corner of the veil

Vitamins in grape must: let’s lift a corner of the veil

Abstract

Although vitamins stand as major actors to yeasts prime metabolic pathways, their significance in oenology and winemaking remains rather obscure nowadays, having been mostly unexplored for several decades. While those investigations allowed for a primary estimation of the vitaminic contents of musts and wines, no quantification of their vitameric distribution has ever been performed. Here, in order to elucidate a still-obscure facet of wine composition, 19 different vitamers from 8 different vitaminic groups (B1, B2, B3, B5, B6, B8, B9, C) have been simultaneously and directly analyzed by an optimized rapid HPLC procedure in 85 white grape musts from different geographical origins, varieties, as well as vintages. This novel insight on must composition reflects the overall must diversity, since their vitameric contents vary highly between musts. Plus, this investigation provided leads for characterization of the matrix, since, notably, distinctive patterns could be observed in regards to the musts area of cultivation. Such an analytical tool allows for a precise estimation of the must contents in the different water-soluble vitamers, to provide with a
refined management of winemaking and avoid significant deficiencies that could occur during fermentation, or as a result of winemaking practices. As such, the impact held by some oenological practices on vitamins has also been investigated, and proved to have no significant effect. Overall, this offers ground for further determination of the vitamin significance in oenology, and provide a new tool for alcoholic fermentation management.

DOI:

Publication date: June 23, 2022

Issue: IVAS 2022

Type: Article

Authors

Evers Marie Sarah1,2, Alexandre Hervé1, Morge Christophe2, Sparrow Celine2, Gobert Antoine2 and Roullier-Gall Chloé1

1Institut Universitaire de la Vigne et du Vin Jules Guyot, Université de Bourgogne, 2 rue Claude Ladrey, 21000 Dijon, France
2Sofralab SAS, 79 avenue A.A, Av. Alfred Anatole Thévenet, 51530 Magenta, France

Contact the author

Keywords

vitamins, grape must, HPLC, oenology, winemaking

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Expanding the biotechnological potential of M. pulcherrima/fructicola clade for wine-related applications

AIM: Strains belonging to M. pulcherrima/fructicola clade are frequently isolated from flowers, fruits and grape musts, and exhibit a broad spectrum of enzymatic activities and antimicrobial potential (Morata et al., 2019; Sipiczki, 2020; Vicente et al. 2020).

Read More

INVESTIGATION OF FILM COATINGS AS A PROTECTIVE LAYER IN REDUCING THE ABSORPTION OF SMOKE PHENOLS INTO PINOT NOIR GRAPES

Wine grapes exposed to wildfire smoke have resulted in wines with burnt and ashy sensory characteristics¹, that are undesirable qualities in wine. In extreme wildfire events, this can lead to total loss of grape crop. Currently there are no effective solutions in the market to prevent the uptake of smoke compounds into grapes. In this study, previously developed innovative film coatings were tested to analyze their effectiveness in reducing smoke phenol absorption². Four different cellulose nanofiber-based film types were investigated.

Read More

First results on the chemical composition of red wines from the pressing of marc

In the Bordeaux vineyards, press wine represents approximately 15% of the total volume of wine produced[1]. Valuing this large volume of wine is necessary from an economic point of view, but also because of their organoleptic contribution to the blend, and their contribution to the construction of wines for laying down. Therefore, this study was developed considering the lack of recent scientific knowledge on the composition of red press wines. The aim of this study is to establish an initial assessment of their chemical composition including aromatic compounds and a phenolic part.

Read More

Disease‐induced alterations in the reflectance spectrum of grape leaves

Context and purpose of the study ‐ Phytopathogenic diseases impact the development and yield of grapevines, resulting in economical, social and environmental losses.

Read More

Construction of a 3D vineyard model using very high resolution airborne images

In recent years there has been a growth in interest and number of research studies regarding the application of remote optical and thermal sensing by unmanned aerial vehicle (UAV) in agriculture and viticulture. Many papers report on the use of images to map or estimate the growth and water status of plants, or the heterogeneity of different parcels. Most often, NDVI or other similar indices are used.

Read More