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Updated: May 8, 2026

Tea Aroma Analysis Based on Solvent-Assisted Flavor Evaporation Enrichment
Published on: May 26, 2023
Volatile aroma compounds in various brewed green teas
Jeehyun Lee1, Delores H Chambers, Edgar Chambers
1Department of Food Science and Nutrition, Pusan National University, 30 Jangjeon-Dong, Geumjeoung-Ku, Busan 609 735, Korea. jeehyunlee@pusan.ac.kr
This study identified 38 aroma compounds in brewed green tea using gas chromatography-mass spectrometry (GC-MS) and headspace solid-phase micro-extraction (HS-SPME). Tea origin did not correlate with volatile composition, suggesting other factors influence green tea aroma.
Area of Science:
- Food Chemistry
- Analytical Chemistry
- Sensory Science
Background:
- Green tea is a popular beverage globally, valued for its distinct aroma and flavor.
- The volatile compounds responsible for green tea's sensory profile are complex and influenced by numerous factors.
- Understanding these aroma volatiles is crucial for quality control and product development in the tea industry.
Purpose of the Study:
- To identify and semi-quantify common volatile compounds in brewed green tea from various global origins.
- To investigate potential similarities in volatile profiles among green teas from the same geographical region.
- To determine the influence of country of origin on the aroma volatile composition of brewed green tea.
Main Methods:
- Utilized headspace solid-phase micro-extraction (HS-SPME) for extracting aroma volatiles from brewed green tea samples.
- Employed gas chromatography-mass spectrometry (GC-MS) for the separation and identification of volatile compounds.
- Analyzed 24 green tea samples from eight different countries, brewed according to consumer recommendations.
Main Results:
- Identified and semi-quantified a total of 38 volatile compounds across the analyzed green tea samples.
- Observed lower concentrations of volatiles compared to previous studies, attributed to the headspace analysis of brewed tea versus solvent extraction of leaves.
- Found no significant correlation between the country of origin and the volatile composition of the green tea samples.
Conclusions:
- The volatile profile of brewed green tea is not strongly linked to its country of origin.
- Factors other than geographical origin appear to exert a greater influence on the aroma characteristics of green tea.
- Further research may be needed to elucidate the specific factors (e.g., processing, cultivar, storage) that shape green tea aroma.
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