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Effect of esterification condensation on the Folin–Ciocalteu method for the quantitative measurement of total phenols

Food Chemistry, 2015
The Folin-Ciocalteu method is widely applied for the determination of the total phenolic contents in natural products. This method is significantly affected by the addition of sodium carbonate. The currently applied Folin-Ciocalteu methods may have been modified without any validation in the quantitative standards and the order of processes.
Liang-Yu, Chen   +2 more
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Measurement of Total Phenolics and Tannins Using Folin-Ciocalteu Method

2003
The method for total phenol is useful in order to know the efficiency of extraction of phenolics in solvents. This method can be coupled with the use of insoluble matrix, polyvinyl polypyrrolidone (PVPP; binds tannin-phenolics) for measurement of tannins (see below). The results can be expressed as tannic acid equivalent.
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Measurement of phosphotyrosine phosphatase activity using the Folin-Ciocalteu phenol reaction.

Biochemistry and molecular biology international, 1995
An assay for the estimation of phosphotyrosine phosphatase using the Folin-Ciocalteu phenol reaction to monitor enzyme activity is presented. The method is based on the property of the substrate phosphotyrosine not to react as a phenol until it is dephosphorylated. The method is sensitive, there is no interference from the use of detergents and it does
B M, Gmeiner, C C, Seelos
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