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Application of activated charcoal made from vine shoots. Relationship between their physicochemical and textural characteristics and the impact on color and aromatic properties of wines

M. Esperanza Valdés Sánchez, Centro Investigaciones Cientificas y Tecnológicas Extremadura, Spain

Application of activated charcoal made from vine shoots. Relationship between their physicochemical and textural characteristics and the impact on color and aromatic properties of wines
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In the present study, vine shoots (VS) of the cv. Cavernet-Sauvignon were used as the raw material for the preparation of activated carbons. The activated carbons (ACs) were prepared by physical (air, CO2 or steam) or chemical (H3PO4, ZnCl2 or KOH) activation.

The ACs were characterized and valuable information regarding their chemical composition, texture, and surface chemistry was obtained. 

Activated carbons were added to a white varietal wine in doses of 50 g hL-1 and concentrations of phenolic substances (total polyphenol, flavonoid, hydroxycinnamic acids and brown polymers), chromatic characteristics (IC and TC) and the aromatic composition (alcohols, carbonyl compounds, acetates, esters and acids) were measured before and after the treatment.

With the aim to find the most desirable charcoal’s characteristics for the in the wine industry, correlations between the parameters analyzed in the charcoals and the impact on chromatic and aromatic properties of wines were analyzed.

Paper presented at the International OENOPPIA AWARD 2015. The paper reproduced in this video-seminar was presented at the 9th edition of Enoforum (May 5th-7th, 2015, Vicenza, Italy)

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The video-seminar is conceived as a true professional update course lasting more than 15 minutes. Therefore, before starting to watch the video, we recommend that you prepare yourself for a uninterrupted session (ex. make sure you are free of all other engagements for the whole duration, turn off your cell phone and be equipped with materials to take notes).

Published on 20/02/2017
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