Extraction of catechins and caffeine from different tealeaves and comparison with micellar electrokinetic chromatography

Chinese Science Bulletin

Volumn 48, Issue 22, 2003, Pages 2438-2443

  Song, Guanqun ^a   Lin, Jinming ^a   Qu, Feng ^a   Huie, C W ^b  

^a RESEARCH CENTER FOR ECO ENVIRONMENTAL SCIENCES   (China)

^b HONG KONG BAPTIST UNIVERSITY   (Hong Kong)

Author keywords

Caffeine; Catechins; Micellar electrokinetic chromatography; Pretreatment; Tea

Indexed keywords

CAMELLIA SINENSIS;

EID: 33749683633     PISSN: 10016538     EISSN: 18619541     Source Type: Journal    
DOI: 10.1360/03wb0105     Document Type: Article

References (28)

1. Jankun, J., Selman, S. H., Swiercz, R., Why drinking green tea could prevent cancer, Nature, 1997, 387(5): 561-563.
2. Dalluge, J. J., Nelson, B. C., Determination of tea catechins, J. Chromatogr. A, 2000, 881(1-2): 411-424.
3. Finger, A., Khur, S., Engelhardt, U. H., Chromatography of tea constituents, J. Chromatogr., 1992, 624: 293-315.
4. Wang, Z. Y., Chang, S. J., Zhou, Z. C., Antimutagenic activity of green tea polyphenols, Mutat. Res., 1989, 223: 273-285.
5. Vinson, J. A., Dabbagh, Y. A., Serry, M. M. et al., Plant flavonoids, especially tea flavonols, are powerful antioxidants using an in vitro oxidation model for heart disease, J. Agric. Food Chem., 1995, 43(11): 2800-2802.
6. Lin, Y. L., Juan, I. M., Chen, Y. L. et al., Composition of polyphenols in fresh tea leaves and associations of their oxygen-radical-absorbing capacity with antiproliferative actions in fibroblast cells, J. Agric. Food Chem., 1996, 44(6): 1387-1394.
7. Zhao, B. L., The anti-oxidant activity of catechins, Chin. Sci. Bull, (in Chinese), 2002, 47(16): 1206-1210.
8. Fernández, P. L., Pablos, F., Martín, M. J. et al., Study of catechin and xanthine tea profiles as geographical tracers, J. Agric. Food Chem., 2002, 50(7): 1833-1839.
9. Pierce, A. R., Graham, H. N., Glassner, S. et al., Analysis of tea flavanols by gas chromatography of their trimethylsilyl derivatives, Anal. Chem., 1969, 41(2): 298-302.
10. Collier, P. D., Mallows, R., The estimation of flavanols in tea by gas chromatography of their trimethylsilyl derivatives, J. Chromatogr., 1971, 57: 29-45.
11. Goto, T., Yoshida, Y., Kiso, M. et al., Simultaneous analysis of individual catechins and caffeine in green tea, J. Chromatogr. A, 1996, 749(1-2): 295-299.
12. Maiani, G., Serafini, M., Salucci, M. et al., Application of a new high-performance liquid chromatographic method for measuring selected polyphenols in human plasma, J. Chromatagr. B, 1997, 692(2): 311-317.
13. Wang, H. F., Provan, G. J., Helliwell, K., HPLC determination of catechins in tea leaves and tea extracts using relative response factors, Food Chemistry, 2003, 81(2): 307-312.
14. Khokhar, S., Magnusdottir, S. G. M., Total phenol, catechin, and caffeine contents of teas commonly consumed in the United Kingdom, J. Agric. Food Chem., 2002, 50(3): 565-570.
15. Ǎrce, L., Ríos, A., Valcárcel, M., Determination of anti-carcinogenic polyphenols present in green tea using capillary electrophoresis coupled to a flow injection system, J. Chromatogr. A, 1998, 827(1): 113-120.
16. Li, Y., Gao, J. T., Zhang, Z. L. et al., Determination of catechins in grape seeds by capillary electrophoresis, Chinese Journal of Chromatography (in Chinese), 2000, 18(6): 491-494.
17. Barroso, M. B., Werken, G. V. D., Determination of green and black tea composition by capillary electrophoresis, J. High Resol. Chromatogr., 1999, 22(4): 225-230.
18. Larger, P. J., Jones, A. D., Dacombe, C., Separation of tea polyphenols using micellar electrokinetic chromatography with diode array detection, J. Chromatogr. A, 1998, 799(1-2): 309-320.
19. Horie, H., Kohata, K., Application of capillary electrophoresis to tea quality estimation, J. Chromatogr. A, 1998, 802(1): 219-223.
20. Nelson, B. C., Thomas, J. B., Wise, S. A. et al., The separation of green tea catechins by micellar electrokinetic chromatography, J. Microcolumn separations, 1998, 10(8): 671-679.
21. WÖrth, C. C. T., Wießler, M., Schmitz, O. J., Analysis of catechins and cafeine in tea extracts by micellar electrokinetic chromatography, Electrophoresis, 2000, 21(17): 3634-3638.
22. Watanabe, T., Nishiyama, R., Yamamoto, A. et al., Simultaneous analysis of individual catechins, caffeine, and ascorbic acid in commercial canned green and black teas by micellar electrokinetic chromatography, Anal. Sci., 1998, 14(2): 435-438.
23. Pomponio, R., Gotti, R., Santagati, N. A. et al., Analysis of catechins in extracts of Cistus species by microemulsion electrokinetic chromatography, J. Chromatogr. A, 2003, 990(1-2): 215-223.
24. Pomponio, R., Gotti, R., Luppi, B. et al., Microemulsion electrokinetic chromatography for the analysis of green tea catechins: Effect of the cosurfactant on the separation selectivity, Electrophoresis, 2003, 24(10): 1658-1667.
25. Horie, H., Mukai, T., Kohata, K., Simultaneous determination of qualitatively important components in green tea infusions using capillary electrophoresis, J. Chromatogr. A, 1997, 758(2): 332-335.
26. Chen, C. C., Shi, L. L., Chen, C. C., Effect of extraction temperature and time on polyphenol contents and composition and sensory quality of oolong tea infusion. Food Sci., 1996, 23: 285-298.
27. Stach, D., Schmitz, O. J., Decrease in concentration of free catechins in tea over time determined by micellar electrokinetic chromatography, J. Chromatogr. A, 2001, 924(1-2): 519-522.
28. Lin, J. K., Lin, Y. L., Liang, Y. C. et al., Survey of catechins, gallic acid, and methylxanthines in green, oolong, pu-erh, and black teas, J. Agric. Food Chem. 1998, 46(9): 3635-3642.