[Preparation and component analysis of tea pigments].
OBJECTIVE
To prepare tea pigments.


METHODS
Tea pigments are prepared by solvent extraction from Sri lanka black tea.


RESULTS
Tea pigments contains the components as follows: caffeine 1.77%, epigallocatechin 1.37%, catechin 1.20%, epicatechin 9.55%, epigallocatechin gallate 10.52%, epicatechin gallate 9.94%, theaflavin 10.34%, theaflavin monogallate 9.57%, theaflavin digallate 4.81%, thearubigin about 40.93%.


CONCLUSIONS
The best proportions of the compound that are obtained with HPLC analysis.
Li
Daxiang
D
Key Laboratory of Tea Biochemistry & Biotechnology, Ministry of Agricultural, Anhui Agriculture University, Hefei 230036, China.
Wan
Xiaochun
X
Xia
Tao
T
D044946:Biflavonoids / Q000032:analysis; D002110:Caffeine / Q000032:analysis; D002392:Catechin / Q000031:analogs & derivatives / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D005707:Gallic Acid / Q000031:analogs & derivatives / Q000032:analysis; D010636:Phenols / Q000032:analysis; D010860:Pigments, Biological / Q000032:analysis / Q000302:isolation & purification*; D059808:Polyphenols; D013662:Tea / Q000737:chemistry*
D044946:Biflavonoids; D010636:Phenols; D010860:Pigments, Biological; D059808:Polyphenols; D013662:Tea; C086701:thearubigin; C056068:theaflavin; C077197:theaflavin digallate; D002110:Caffeine; D005707:Gallic Acid; D002392:Catechin; C062669:epicatechin gallate; C045651:epigallocatechin gallate; C057580:gallocatechol