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IVES 9 IVES Conference Series 9 Measurement of redox potential as a new analytical winegrowing tool

Measurement of redox potential as a new analytical winegrowing tool

Abstract

Excell laboratory has initiated the development of an analytical method based on electrochemistry to evaluate the ability of wines to undergo or resist to oxidative phenomena. Electrochemistry is a powerful tool to probe reactions involving electron transfers and offers possibility of real-time measurements. In that context, the laboratory has implemented electrochemical analysis to assess oxidation state of different wine matrices but also in order to evaluate oxidative or reduced character of leaf and soil. Initially, our laboratory focused on dosage of compounds involved in responses of plant stresses and we were also interested in microbiological activity of soils. These analyses were compared with the measurement of redox potential (Eh) and pH which are two fundamental variables involved in the modulation of plant metabolism. Indeed, the variation of redox states of the plant reflects its biological activity but also its capacity to absorb nutriments. The Eh-pH conditions mainly determine metabolic processes involved in soil and leaf and our goal is to determine if this combined analytical approach will be sufficiently precise to detect biological evolutions (plant health, parasitic attack…).

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Publication date: May 31, 2022

Issue: Terclim 2022

Type: Poster

Authors

Alice Dauphin1,2, Tommaso Nicolato2 and Vincent Renouf2

 

1Laboratoire CBMN, CNRS UMR 5248, Pessac, France
2Laboratoire EXCELL, Floirac, France

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Keywords

electrochemistry, leaf, redox potential, soil

Tags

IVES Conference Series | Terclim 2022

Citation

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