Generalised 2D-correlation NMR analysis of a wine fermentation

Area of Science:

• Analytical Chemistry
• Food Science
• Biotechnology

Background:

• Wine fermentation is a complex biochemical process.
• Real-time monitoring is crucial for quality control and optimization.
• Traditional methods may lack the detail for comprehensive analysis.

Purpose of the Study:

• To apply high-resolution nuclear magnetic resonance (NMR) spectroscopy for monitoring wine fermentation.
• To utilize generalized two-dimensional correlation techniques for data analysis.
• To demonstrate the utility of 2D correlation mapping in interpreting fermentation dynamics.

Main Methods:

• Daily monitoring of wine fermentation using (1)H NMR spectroscopy.
• Data pre-processing including spectral synthesis for consistent peak width.
• Application of generalized two-dimensional correlation techniques (2D-FTIR).
• Generation and analysis of synchronous and asynchronous data maps.

Main Results:

• Successful application of (1)H NMR spectroscopy to track fermentation progress.
• Identification of key spectral changes correlating with fermentation stages.
• 2D correlation maps provided insights into the temporal relationships between different chemical species.
• Demonstrated the ability to interpret complex fermentation dynamics over time.

Conclusions:

• High-resolution NMR spectroscopy is a powerful tool for wine fermentation process monitoring.
• Multivariate data analysis, specifically 2D correlation mapping, enhances the interpretation of complex spectral data.
• This approach offers a detailed, real-time understanding of fermentation kinetics.