Variations in Fatty Acids Affected Their Derivative Volatiles during Tieguanyin Tea Processing
Abstract
:1. Introduction
2. Material and Methods
2.1. Chemicals and Reagents
2.2. Preparation of Tea Samples
2.3. Extraction and Analysis of Fatty Acids
2.4. Extraction and Analysis of the Odorant Compounds
2.5. Data Processing
3. Results and Discussion
3.1. Change Properties of Fatty Acids during Tieguanyin Tea Processing
3.1.1. Fatty Acid Composition and Content in Tieguanyin Tea Samples
3.1.2. Change in TFA, USFA, and SFA during Tieguanyin Tea Manufacturing
3.1.3. Change in Fatty Acids Composition during Tieguanyin Tea Manufacturing
3.2. Change in FADV Content during Tieguanyin Tea Processing
3.2.1. FADV Profiles and Contents in Tieguanyin Tea Samples
3.2.2. Changes in FADV during Tieguanyin Tea Manufacturing
3.3. Correlations of Fatty Acids and Their Derivatives during Oolong Tea Processing
3.4. Relationship of the Key FADV with Fatty Acids during Oolong Tea Green-Making Stage
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Fatty Acid (Cm:n) | RT (min) | Fresh Leaves (μg/g) | Oolong Tea (μg/g) | Green Tea (μg/g) |
---|---|---|---|---|
C12:0 | 10.412 | 46.1 ± 31.4 | 33.2 ± 6.3 | 20.8 ± 5.7 |
C14:0 | 13.494 | 53.8 ± 12.7 | 48.3 ± 3.7 | 45.7 ± 1.7 |
C16:0 | 17.198 | 5105.5 ± 411.4 | 4192.8 ± 15.4 | 4267.4 ± 184.4 |
C16:1 | 17.854 | 59.2 ± 5.8 | 35.3 ± 2.3 | 188.1 ± 5.0 |
C18:0 | 21.279 | 796.9 ± 301.5 | 571.5 ± 38.8 | 615.5 ± 85.8 |
C18:1 | 21.906 | 241.1 ± 24.2 | 188.3 ± 39.7 | 155.1 ± 11.9 |
C18:2 | 23.009 | 4694.5 ± 111.0 | 3320.1 ± 45.8 | 3410.7 ± 85.5 |
C18:3 | 24.415 | 9622.6 ± 266.7 | 6734.1 ± 109.2 | 6833.0 ± 189.8 |
C20:0 | 25.600 | 57.8 ± 13.1 | 51.2 ± 10.7 | 46.9 ± 8.2 |
C20:1 | 26.320 | 104.5 ± 20.5 | 56.8 ± 23.7 | 72.0 ± 9.7 |
C20:2 | 27.760 | 38.8 ± 16.7 | 29.1 ± 5.6 | 22.6 ± 10.0 |
C20:4 | 29.314 | 43.3 ± 26.1 | ND | 54.0 ± 14.2 |
C20:3 | 29.701 | 57.8 ± 19.5 | 32.3 ± 7.5 | 27.4 ± 22.0 |
C24:0 | 38.738 | 396.2 ± 143.5 | 207.6 ± 10.0 | 285.2 ± 9.9 |
C24:1 | 39.838 | 236.3 ± 13.5 | 165.1 ± 6.0 | 173.3 ± 26.3 |
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Guo, L.; Chen, M.; Guo, Y.; Lin, Z. Variations in Fatty Acids Affected Their Derivative Volatiles during Tieguanyin Tea Processing. Foods 2022, 11, 1563. https://doi.org/10.3390/foods11111563
Guo L, Chen M, Guo Y, Lin Z. Variations in Fatty Acids Affected Their Derivative Volatiles during Tieguanyin Tea Processing. Foods. 2022; 11(11):1563. https://doi.org/10.3390/foods11111563
Chicago/Turabian StyleGuo, Li, Mingjie Chen, Yaling Guo, and Zhi Lin. 2022. "Variations in Fatty Acids Affected Their Derivative Volatiles during Tieguanyin Tea Processing" Foods 11, no. 11: 1563. https://doi.org/10.3390/foods11111563