Related Experiment Video
Updated: Aug 26, 2026

Profiling the Bacterial Community of Fermenting Traminette Grapes during Wine Production using Metagenomic Amplicon Sequencing
Published on: December 1, 2023
Influence of wine-relevant metal ions on oxygen consumption kinetics and tannin-related responses in an H₂O₂-mediated
Jiaheng Lyu1, Getu Shi2, Dewei Zhang2
1Yantai Key Laboratory of Wine Flavour Technology, Yantai Institute of China Agricultural University, Yantai 264670, China.
Abstract:
This study evaluated how common wine-relevant metal ions influence oxygen consumption behavior and soluble tannin-related responses in an H₂O₂-mediated accelerated model wine system. The presence of Fe3+, Cu2+, Ca2+, Al3+, and Co2+ markedly altered oxygen consumption kinetics, which could be described using a power-function model with parameters dependent on metal ion identity and concentration. Electronic tongue measurements showed that metal ions affected instrumental astringency-related responses, while the individual contributions of metal ion properties, H₂O₂-mediated reactions, tannin-related transformations, and potential metal-tannin interactions could not be distinguished under the present experimental conditions. Chemical analyses further revealed concentration-dependent changes in the soluble tannin fraction, including variations in tannin concentration, subunit composition, and mean degree of polymerization after centrifugation. Overall, these results provide comparative empirical evidence that wine-relevant metal ions can modify oxygen consumption behavior and soluble tannin-related parameters under the defined H₂O₂-mediated accelerated model wine conditions.
More Related Videos
Related Concept Videos
Microbes in Beverage Production
Oxygen Requirements and Growth Patterns
Complexometric Titration: Overview
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox property is crucial in...
EDTA: Auxiliary Complexing Reagents
Redox Titration: Other Oxidizing and Reducing Agents

