Rapid Determination of Catechin Content in Black Tea by Fluorescence Spectroscopy
Joint Authors
Ma, Chaoqun
Wang, Tingyu
Zhu, Chun
Gu, Jiao
Du, Chenxu
Chen, Lvming
Chen, Guoqing
Li, Lei
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Catechin can effectively prevent the occurrence of cancers due to its strong antioxidant capacity.
In this study, the catechin contents of black teas from 12 different regions of south China were investigated using fluorescence spectroscopy.
Herein, the catechin contents of various black teas with constant concentration were determined at the optimal excitation and emission wavelength combining the standard addition method and fluorescence spectroscopy.
The results indicated that there was a linear relationship between the obtained concentration and fluorescence intensity, where the R values were all greater than 0.99 and the limit of quantification (LOQ) was 0.02 μg/mL.
Furthermore, the content of catechin monomer in the chlorophyll environment was measured under the same experimental conditions to demonstrate the correctness of the above experimental methods.
It revealed that the experimental error was about 1.14% compared with the actual content.
The current work was proved to be an efficient way to detect fluorescence spectrum through diluting the concentration of tea samples, thereby increasing the determination limit of catechin.
American Psychological Association (APA)
Du, Chenxu& Ma, Chaoqun& Gu, Jiao& Li, Lei& Zhu, Chun& Chen, Lvming…[et al.]. 2020. Rapid Determination of Catechin Content in Black Tea by Fluorescence Spectroscopy. Journal of Spectroscopy،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1190787
Modern Language Association (MLA)
Du, Chenxu…[et al.]. Rapid Determination of Catechin Content in Black Tea by Fluorescence Spectroscopy. Journal of Spectroscopy No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1190787
American Medical Association (AMA)
Du, Chenxu& Ma, Chaoqun& Gu, Jiao& Li, Lei& Zhu, Chun& Chen, Lvming…[et al.]. Rapid Determination of Catechin Content in Black Tea by Fluorescence Spectroscopy. Journal of Spectroscopy. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1190787
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190787