Quantitative Analysis of Alcohol, Sugar, and Tartaric Acid in Alcoholic Beverages Using Attenuated Total Reflectance Spectroscopy
2006
Analyzing Alcoholic Beverages with Spectroscopy
Sample size: 100
publication
Evidence: high
Author Information
Author(s): R. Nagarajan, A. Gupta, R. Mehrotra, M. M. Bajaj
Primary Institution: National Physical Laboratory, University of Delhi
Hypothesis
Can attenuated total reflectance spectroscopy effectively quantify ethanol, sugar, and tartaric acid in alcoholic beverages?
Conclusion
The ATR technique is a reliable and efficient alternative to chemical analysis for quantifying constituents in alcoholic beverages.
Supporting Evidence
- The calibration model developed showed good correlation coefficients for ethanol, sucrose, and tartaric acid.
- Comparison of ATR results with chemical analysis yielded satisfactory agreement.
- ATR method is fast, accurate, and easy to handle for determining constituents in alcoholic beverages.
Takeaway
This study shows that a special type of light measurement can help figure out how much alcohol and sugar is in drinks without using complicated chemical tests.
Methodology
Mid-infrared spectroscopy in ATR mode was used to analyze synthetic samples and commercial alcoholic beverages.
Digital Object Identifier (DOI)
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