Determination of total polyphenols in tea by a flow injection-fiber optic spectrophotometric system
Qadir, M (Qadir, Muyessar); Muhammad, T (Muhammad, Turghun); Bakri, M (Bakri, Mahinur); Gao, F (Gao, Fei)
2018
发表期刊INSTRUMENTATION SCIENCE & TECHNOLOGY
卷号46期号:2页码:185-193
摘要

A flow injection-fiber optic spectrophotometric system was established for the online determination of total polyphenol content in tea samples. The method was based on the chromogenic reaction between the phenolic compounds (gallic acid) and ferrous tartrate which was used as the colorimetric reagent and the absorption was determined at the maximum absorption wavelength of 540nm at 20 degrees C and pH 7.5. The calibration curve from standard solutions of gallic acid was linear in the range from 0.010 to 0.100mg/mL with a correlation coefficient of 0.9970. The relative standard deviation of polyphenol measurements for eight tea samples was between 0.55 and 3.18%. It can be concluded that the proposed method has allowed simple, fast, and accurate determination of total polyphenol content in tea products.

关键词Fiber Optic Spectrophotometry Flow Injection Analysis Tea Total Polyphenols
DOI10.1080/10739149.2017.1346515
收录类别SCI
WOS记录号WOS:000424196900005
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5212
专题省部共建新疆特有药用资源利用重点实验室
作者单位1.Xinjiang Univ, Coll Chem & Chem Engn, Xinjiang Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Plant Resources & Chem Arid Zone, Urumqi, Peoples R China
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Qadir, M ,Muhammad, T ,Bakri, M ,et al. Determination of total polyphenols in tea by a flow injection-fiber optic spectrophotometric system[J]. INSTRUMENTATION SCIENCE & TECHNOLOGY,2018,46(2):185-193.
APA Qadir, M ,Muhammad, T ,Bakri, M ,&Gao, F .(2018).Determination of total polyphenols in tea by a flow injection-fiber optic spectrophotometric system.INSTRUMENTATION SCIENCE & TECHNOLOGY,46(2),185-193.
MLA Qadir, M ,et al."Determination of total polyphenols in tea by a flow injection-fiber optic spectrophotometric system".INSTRUMENTATION SCIENCE & TECHNOLOGY 46.2(2018):185-193.
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