Alcohol fermentation monitoring by sugar analysis

Importance of the Topic

Monitoring sugar composition is essential in alcohol fermentation processes to ensure efficient biofuel production and optimize yield. Precise analysis of mono- and disaccharides allows producers to adjust process parameters in real time.

Study Objectives and Overview

This application note demonstrates the use of the Shim-pack SUR-Na column with sodium-based ligand exchange mode on the Nexera lite HPLC system for rapid and reliable sugar analysis in fermentation broths.

Methodology and Instrumentation

• Instrument: Shimadzu Nexera lite HPLC
• Column: Shim-pack SUR-Na, 250 mm x 7.8 mm I.D., 8 μm particle size
• Guard Column: Shim-pack SUR-Na (G), 50 mm x 7.8 mm I.D., 8 μm
• Mobile Phase: Water
• Flow Rate: 0.6 mL/min
• Column Temperature: 80 °C
• Injection Volume: 2 μL
• Detector: Refractive Index Detector (RID)

Main Results and Discussion

The method achieved baseline separation of key sugars including glucose, fructose, sucrose, and maltose within a short analysis time. High column temperature and water-only mobile phase enabled stable retention times and reproducible peak shapes. The sodium-based ligand exchange mechanism provided high selectivity for hydroxyl-containing compounds.

Benefits and Practical Applications

• Streamlined workflow with minimal mobile phase preparation
• Enhanced robustness due to high-temperature operation
• Cost-effective monitoring of fermentation kinetics
• Applicability to various biofuel and brewery processes

Future Trends and Potential Applications

Integration with automated sampling systems and real-time data analytics is anticipated to further optimize fermentation control. Advances in detector technology may improve sensitivity for low-concentration sugars and byproducts.

Conclusion

The Shim-pack SUR-Na column on the Nexera lite platform offers a reliable, efficient solution for sugar profiling in biofuel fermentation monitoring, combining simplicity and robustness.

References

Shimadzu Corporation. Shim-pack SUR-Na flyer, First Edition Feb. 2024.