terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Teinturier grapes: Valorization as a source of high-value compounds for the Chilean food industry

Teinturier grapes: Valorization as a source of high-value compounds for the Chilean food industry

Abstract

The agri-food industry is constantly searching for ingredients of high functional value, healthy and of natural origin. One species of particular interest is Vitis vinifera, due to its recognized antioxidant potential. Among the grape varieties, one group possesses these antioxidant compounds not only in the skin, but also in its pulp: Teinturier. The red grape has traditionally been used for color correction purposes in winemaking, however, its high antioxidant content transforms it into a raw material of high potential for new formulations of ingredients and foods for the health and wellness market.

In Chile, the potential of Teinturier has been little explored in the food industry, being a raw material with availability in the market, due to its large number of hectares currently productive (more than 7500) and with a competitive price compared to other fruits with high antioxidant capacity, such as other varieties of grapes, blueberries and native berries. In this context, our laboratory has developed a characterization from a commercial vineyard in the central wine-growing valley in the 2021-22 season. The grapes were harvested and analyzed for: soluble solids content (ºBrix), color, pH, acidity (%), anthocyanin content, total polyphenols, antioxidant activity (FRAP) and anthocyanin profile by HPLC and comparing with Merlot grapes produced under the same agronomic conditions. Comparatively, the teinturier grapes showed 2.29 times more anthocyanins in the skin, with Malvidin 4.27 times higher and polyphenols 2.53 times higher. This characterization seeks to position Teinturier varieties as a quality raw material of high interest for the food market due to their healthy properties. Moreover, it would provide the producers of these cultivars with a new market that ensures the long-term sustainability of these strains, and that they can opt for an alternative market, such as the health and wellness market.

DOI:

Publication date: October 16, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Salazar-Parra C1*, Vergara C, Miranda M1, Reyes M2, Zamora O1, Farias MJ1

1Instituto de investigaciones agropecuarias, INIA La Platina.
2Instituto de investigaciones agropecuarias. INIA Raihuen.

Contact the author*

Keywords

anthocyanins, antioxidant, health food, grapevine, food industry

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

The colour pattern of flower arrangements influence wine tasters’ sensory description

The arrangements of flowers and wine counterparts are inextricably linked. Whether a fundamental aspect of tablescaping or acolytes to broader entertainment rituals, they have an entangled history since ancient times. The aim of this contribution is to verify the influence of visually delicate and robust flower arrangements on individual description of wines. Changes in the sensory description of wines were investigated during subjects’ (thirty-two participants) exposure to three different conditions: the presence of delicate, robust, or totally absent flower arrangements.

Comparison of ancestral and traditional methods in the elaboration of sparkling wines; preliminary results

Top quality sparkling wines (SW) are mostly produced using the traditional method that implies a second fermentation into the bottle[1]. That is the case of sparkling wines of reputed AOC such as Champagne, Cava or Franciacorta. However, it seems that the first SW was elaborated using the ancestral method in which only one fermentation takes place[2]. That is the case of the classical SW from the AOC Blanquette de Limoux[3]. In both cases, SW age in the bottle during some time in contact with lees favoring yeast’s autolysis[4]. There is a lot of information about traditional method but only few exists about ancestral method. The aim of this work was to compare SW made by the ancestral method with SW made by the traditional method.

Tackling the 3D root system architecture of grapevines: a new phenotyping pipeline based on photogrammetry

Plant roots fulfil important functions as they are responsible for the acquisition of water and nutrients, for anchorage and stability, for interaction with symbionts and, in some cases, for the storage of carbohydrates. These functions are associated with the Root System Architecture (RSA, i.e. the form and the spatial arrangement of the roots in the soil). The RSA results from several biological processes (elongation, ramification, mortality…) genetically determined but with high structural plasticity.

New food trend ahead? Highlighting the nutritional benefits of grapevine leaves

The wine industry produces an enormous amount of waste every year. A wider inclusion of disregarded by-products in the human diet or its use as a source of bioactive compounds is a good strategy for reducing waste. It will not only introduce an added value to a waste product but also come upon the European Union and United Nations’ demands towards more sustainable agricultural approaches and circular economy.

Reduction of the height of the canopy in fruit set and in pea size: vegetative, productive and maturation effects, in cv. Verdejo

Global warming is accelerating the technological ripening of the grape, with a loss of acidity, which requires that vineyard management can delay ripening to avoid it. The source-sink relation is essential for grape ripening, since it affects the distribution of photosynthates and substances derived from plant metabolism. A work is proposed to know the response of the vineyard to the drastic reduction of the foliar surface by trim down the shoots in cv.