terclim by ICS banner
IVES 9 IVES Conference Series 9 Key phenolic compounds in the pulp of new red-fleshed table grape hybrids: anthocyanins and flavonols 

Key phenolic compounds in the pulp of new red-fleshed table grape hybrids: anthocyanins and flavonols 

Abstract

The cultivated area of table grapes worldwide has experienced a paramount increase over the last two decades. In this current scenario, traditional varieties are being replaced by new cultivars that prioritize a profitable and sustainable agriculture, while satisfying consumer demands. It is widely recognized that wine varieties, especially those with red berry flesh, are renowned for their high antioxidant capacity and phenolic compounds, which promote health. Recently, this topic has also gained significance in table grape breeding programs. The main objective of this work is to compare new hybrids of table grape (Alicante Bouschet cv. × Itumfifteen cv.) regards to their pulp phenolic compounds content. Three selections of new hybrids Non-Coloured Flesh (NCF) and Total Coloured Flesh (TCF) were analyzed for their individual phenolic compounds (phenolic acids, stilbenes, flavonols, and anthocyanins) during two consecutive seasons 2022 and 2023. The new TCF hybrids showed 2.9-fold higher flavonols in the berry pulp compared to NCF hybrids. Moreover, the anthocyanins content in the berry pulp of TCF grapes reported to be 20-fold higher than those of NCF hybrids. As expected, phenolic acids and stilbenes, were significantly enhanced in TCF hybrids compared to NCF hybrids. The presence of red berry flesh in table grapes not only adds a new characteristic to the market, this new cultivars are genetically enriched in healthy promoting compounds.

Download the abstract

DOI:

Publication date: June 14, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Pablo Crespo Ródenas1,2*, Lorena Martínez Zamora2,3, Francisco Artés Hernández2, Manuel Tornel Martínez1

1 Table Grape Breeding Group. Department of Biotechnology, Genomics and Breeding, Instituto Murciano de Investigación y Desarrollo Agrario y Medioambiental, Murcia, 30150, Spain
2 Postharvest and Refrigeration Group. Department of Agricultural Engineering & Institute of Plant Biotechnology, Universidad Politécnica de Cartagena, Cartagena, Murcia, 30203, Spain
3 Department of Food Technology, Food Science, and Nutrition, Faculty of Veterinary Sciences, University of Murcia, Espinardo, 30071 Murcia, Spain

Contact the author*

Keywords

Vitis vinifera, teinturier grapes, polyphenols, malvidin, kaempferol

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Anthropogenic factors in modulations of fungal populations from grapes to wines and their repercussions on wine characteristics

The effects of anthropogenic activities on vineyard (different plant protections) and in winery
(pressing/clarification step, addition of sulfur dioxide) on fungal populations from grape to wine were studied. The studied anthropogenic activities modify the fungal diversity. Thus, lower biodiversity of grapes from organic modality was measured for the three vintages considered compared to biodiversity from ecophyto modality and conventional modality. The pressing / clarification steps strongly modify fungal populations and the influence of the winery flora is highlighted.

Read More

Radiation-associated effects on regulated deficit irrigation management in grapevine cv. Cabernet Sauvignon

The main challenge of regulated deficit irrigation (RDI) research is to isolate the factors that come with RDI, the direct effect of plant water status from the indirect ones like increased radiation and temperature changes on the cluster zone. This study aims to isolate the effects of vine water status from the effects of increased radiation on the phenolic composition of grapes subjected to RDI.
A three-year study on an RDI experiment where radiation was controlled was implemented in a commercial vineyard of Cabernet Sauvignon in Chile. Four RDI treatments based on partial evapotranspiration (ET) irrigation were established. Irrigation treatments were 100% ET, 70% ET, 50-100% ET (50% ET before veraison and 100% ET afterward), and 35-100% ET (35% ET before veraison and 100% ET afterward).

Read More

Three new Apulian seedless varieties available for the table grape supply chain

The table grape industry in Europe is undergoing significant changes. For instance, in Italy, the national register of vine varieties was established in 1969, and since then, many varieties of table grapes have been registered. In the first thirty years, from 1969 to 1999, 62 seeded and 24 seedless varieties were registered. In the subsequent period, from 2000 to the present day, 23 seeded varieties and 99 seedless varieties were registered.

Read More

Spontaneous fermentation dynamics of indigenous yeast populations and their effect on the sensory properties of Riesling

Varietal Riesling aroma relies strongly on the formation and liberation of bound aroma compounds. Floral monoterpenes, green C6-alcohols, fruity C13-norisoprenoids and spicy volatile phenols are predominantly bound to disaccharides, which are produced and stored in the grape berry during berry maturation. Grape processing aims to extract maximum amount of the precursors from the berry skin to increase the potential for a strong varietal aroma in the wine. Subsequent yeast selection plays an important part in this process.

Read More

Aroma diversity of Amarone commercial wines

Amarone is an Italian red wine produced in the Valpolicella area, in north-eastern Italy. Due to its elaboration with withered grapes, Amarone is a rather unique example of dry red wine. However, there is very limited data so far concerning the volatile composition of commercial Amarone wines, which also undergo a cask aging of 2-4 years before release.

Read More