Screening of anti-oxidant components of Gongcheng Tea by HPLC-UV-FLD and micro-injection systems / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 2545-2551, 2019.
Artigo
em Chinês
| WPRIM
| ID: wpr-851080
ABSTRACT
Objective:
A high performance liquid chromatography-ultraviolet-fluorescence (HPLC-UV-FLD) derivative system was established and the anti-oxidant activity of the extract of Gongcheng Tea was preliminarily evaluated by using a micro-injector imaging system combined with a fluorescent probe.Methods:
Hydrogen peroxide assay and hydroxyl radical scavenging ability experiments were carried out on the anti-oxidant activity of Gongcheng Tea. The anti-oxidant components of Gongcheng Tea were screened by HPLC-UV-FLD post column derivation system and analyzed by an ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q/TOF MS). At the same time, the hydrogen peroxide scavenging activity of tea and active components were tested by a micro-injector imaging system combined with a hydrogen peroxide fluorescent probe (NBCD) in living Drosophila melanogaster.Results:
The method was simple and rapid, and three main anti-oxidant compounds, epigallocatechin, epigallocatechin gallate, and epicatechin gallate were found in Gongcheng Tea. And it was found that they could significantly reduce the level of hydrogen peroxide in D. melanogaster.Conclusion:
It laid a material basis for the further study of the anti-oxidant activity of Gongcheng Tea, and provided a reference for the screening of anti-oxidants in natural products.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo diagnóstico
/
Estudo de rastreamento
Idioma:
Chinês
Revista:
Chinese Traditional and Herbal Drugs
Ano de publicação:
2019
Tipo de documento:
Artigo
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