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Semiquantitative determination of off-notes in mint oils by solid-phase microextraction
W M Coleman1, B M Lawrence, S K Cole
1R.J. Reynolds Tobacco Company, Winston-Salem, NC 27102-1487, USA.
Journal of Chromatographic Science
|April 17, 2002
Summary
A new analytical method using solid-phase microextraction (SPME) can rapidly screen mint essential oils for off-notes caused by contaminants and poor distillation. This technique supports traditional sensory panel evaluations.
Area of Science:
- Agricultural Chemistry
- Analytical Chemistry
- Food Science
Background:
- Mint essential oils are susceptible to off-notes from mechanical harvesting contaminants and suboptimal steam distillation.
- Current methods rely on sensory panels, which can be time-consuming and subjective.
Purpose of the Study:
- To evaluate a nonequilibrated solid-phase microextraction (SPME) procedure for detecting off-notes in mint essential oils.
- To develop a rapid analytical methodology to complement or replace sensory panel evaluations.
Main Methods:
- Utilized solid-phase microextraction (SPME) for sample preparation.
- Combined semiquantitative data, odor threshold data, and mathematical analysis.
- Correlated SPME results with sensory panel data.
Main Results:
- The SPME method demonstrated capabilities in identifying off-notes in mint essential oils.
- The approach provided semiquantitative data, aiding in the screening process.
- Results showed good correlation with established sensory panel assessments.
Conclusions:
- Solid-phase microextraction (SPME) offers a viable, rapid analytical tool for screening mint essential oils for off-notes.
- This method can effectively support or potentially replace traditional sensory analyses, improving efficiency and objectivity.
