IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Variability of Constitutive Stilbenoid Levels and Profiles in Grape Canes (Vitis spp.) depending on Genetic and Environmental Factors

Variability of Constitutive Stilbenoid Levels and Profiles in Grape Canes (Vitis spp.) depending on Genetic and Environmental Factors

Abstract

Grape cane is a viticultural by-product that is currently underused or not used at all. Therefore, it bears a high potential for valorization due to the presence of anti-microbially active stilbenoids, being biologically relevant for plant defense. These compounds are highly interesting for applications in the agricultural sector as well as for the food and feed industry.
In this study, we comprehensively investigated the variability of levels and profiles of constitutive stilbenoids in grape canes. First, an HPLC-DAD-MS/MS-based screening of grape canes from 102 different V. vinifera L. cultivars (including seven fungus-resistant varieties) revealed not only a large inter-varietal variability of both total stilbenoid amounts (557-7748 mg/kg DW), but also of their qualitative compositions, showing highly heterogeneous profiles with different predominant stilbenoids (e.g. piceatannol, resveratrol, ε-viniferin or vitisin B). Focusing on each 13 genetically distinct clones of two varieties (Vitis vinifera L. cvs. Riesling and Pinot Noir), a pronounced intra-varietal variability was also observed (e.g., cv. Riesling 3236-6541 mg/kg).
We furthermore focus on the variability of stilbenoid levels in canes throughout three consecutive vintages (2017-2019) and for three pruning dates (October, December or February) from two cultivars (Pinot Noir and Accent). While varietal differences remained widely conserved throughout the years, strong qualitative discrepancies in stilbenoid profiles between and within seasons became evident. For instance, high contents of oligomeric stilbenoids were found in 2017 and 2019 with decreased temperature and increased precipitation levels, being low in the comparably warmer and dryer year 2018. Furthermore, we clearly show that the pruning date altered the stilbenoid content in grape canes and pruning in December yielded highest levels compared to the two other dates.
In brief, our study provides new insights into the strong variability in grape cane constitutive stilbenoid levels and profiles in both conventional and fungus-resistant Vitis varieties that are attributed to genetic as well as environmental factors.

DOI:

Publication date: June 23, 2022

Issue: IVAS 2022

Type: Poster

Authors

Besrukow Paul1, Irmler Jan1, Schmid Joachim2, Stoll Manfred3, Winterhalter Peter4, Schweiggert Ralf1 and Will Frank1

1Department of Beverage Research, Geisenheim University
2 Department of Grapevine Breeding, Geisenheim University
3Department of General and Organic Viticulture, Geisenheim University
4Institute of Food Chemistry, Technische Universität Braunschweig

Contact the author

Keywords

resveratrol, viniferin, bioactive, phytoalexin, HPLC

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Investigation of cellulose nanofiber-based films used as a protective layer to reduce absorption of smoke phenols into wine grapes

Volatile phenols from wildfire smoke are absorbed by wine grapes, resulting in undesirable smoky and ashy sensory attributes in the affected wine.[1] Unfortunately the severity of wildfires is increasing, particularly when grapes are ripening on the vine. The unwanted flavors of the wine prompted a need for solutions to prevent the uptake of smoke compounds into wine grapes. Films using cellulose nanofibers as the coating forming matrix were developed as an innovative means to prevent smoke phenols from entering Pinot noir grapes. Different film formulations were tested by incorporating low methoxy pectin or chitosan.

Read More

Relationships between vineyard soil physiochemical properties and under-vine soil cover as potential drivers of terroir in the Barossa

Aims: Soils are an intrinsic feature of the landscape and have influenced culturally and economically important terroir delineation in many wine-producing regions of the world. Soil physiochemical properties govern a wide array of ecosystem services, and can therefore affect grapevine health and fruit development. These physiochemical properties can reflect a combination of factors,

Read More

Prevention of quercetin precipitation in red wines: a promising enzymatic solution

In this video recording of the IVES science meeting 2023, Simone Vincenzi (Department of agronomy, food, natural resources, animals and environment (DAFNAE), University of Padova, Italy) speaks about the prevention of quercetin precipitation in red wines with a promising enzymatic solution. This presentation is based on an original article accessible for free on OENO One.

Read More

TANNINS AND ANTHOCYANINS KINETICS OF EXTRACTION FROM ARINARNOA, MARSELAN AND TANNAT UNDER DIFFERENT WINEMAKING TECHNIQUES

Marselan wines have an unusual high proportion of seed derived tannins from grapes having high proportions of skins, which are rich in tannins. But the causes behind this characteristic have not yet been identified. In vintage 2023 wines were made at experimental scale (9 kg by experimental unit) from Arinarnoa, Marselan and Tannat Vitis vinifera grape cultivars by traditional maceration, and by techniques aimed to increase the wine content in skin derived tannin: addition of extraction enzymes, addition at vatting of grape-skin enological tannins, or by extended maceration, known to increase the seed derived tannin contents of wines.

Read More

MONOSACCHARIDE COMPOSITION AND POLYSACCHARIDE FAMILIES OF LYOPHILISED EXTRACTS OBTAINED FROM POMACES OF DIFFERENT WHITE GRAPE VARIETIES

The recovery of bioactive compounds from grape and wine by-products is currently an important and necessary objective for sustainability. Grape pomace is one of the main by-products and is a rich source of some bioactive compounds such as polyphenols, polysaccharides, fatty acids, minerals and seed oil. Polysaccharides contained in the grape cell wall can be rhamnogalacturonans type II (RG-II), polysaccharides rich in arabinose and galactose (PRAG), mannoproteins (MP), homogalacturonans (HG) and non pectic polysaccharides (NPP).

Read More