Elemental Analysis of Coffee with Ion Beam Analytical Techniques

Area of Science:

• Analytical Chemistry
• Food Science
• Materials Science

Background:

• Coffee analysis traditionally relies on established methods.
• Accelerator-based analytical techniques offer novel insights into coffee composition.
• Understanding elemental distribution and extraction is crucial for coffee quality and forensics.

Purpose of the Study:

• To review studies on coffee analysis using swift ion beam techniques.
• To detail the fundamentals of these accelerator-based methods.
• To explore applications in coffee characterization, brewing, and forensics.

Main Methods:

• Swift ion beam analysis of coffee beans (ground and roasted).
• Investigation of elemental extraction during drip brewing.
• Comparison with other analytical techniques like inductively coupled plasma (ICP).

Main Results:

• Coffee matrix primarily consists of carbon and oxygen.
• Elemental mapping shows distribution within roasted beans.
• Chlorine, potassium, and phosphorus are soluble in hot water; extraction depends on temperature.

Conclusions:

• Swift ion beam analysis provides detailed elemental information beyond traditional methods.
• These techniques can differentiate coffee types and aid forensic analysis.
• Water temperature significantly impacts elemental extraction during brewing.