Results 251 to 260 of about 37,620 (277)

Colorimetric determination of capsaicin in capsicum fruits with the Folin-Ciocalteu reagent

Mikrochimica Acta, 1979
A colorimetric method for determination of capsaicin in capsicum fruits is described. The acetone or ethyl acetate extract (prepared at room temperature) is purified on a basic alumina (Brockmann Grade I) column and pure capsaicin is eluted with methanol-acetone-water (75∶25∶1); the capsaicin content is determined after colour development with Folin ...
K. L. Bajaj, Gurdeep Kaur
openaire   +1 more source

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, Chien-Wei, Cheng, Ji-Yuan, Liang   +2 more
openaire   +2 more sources

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.
openaire   +1 more source

Folin-Ciocalteu Phenol TS

2021
openaire   +1 more source

Method for Determining the Total Content of Phenolic Compounds in Plant Extracts with Folin–Denis Reagent and Folin–Ciocalteu Reagent: Modification and Comparison

Russian Journal of Bioorganic Chemistry, 2022
Lapshin P V, Zagoskina N V
exaly  

Folin-Ciocalteu para Fenoles SR

2022
openaire   +1 more source

Extended application of Folin-Ciocalteu reagent in the determination of drugs

The Analyst, 1978
G. R. Rao, G. Kanjilal, K. R. Mohan
openaire   +1 more source

Effect of the Media in the Folin-Ciocalteu Assay for the Analysis of the Total Phenolic Content of Olive Products

Food Analytical Methods, 2023
Nayab Batool, Anam Fatima, Rosa Busquets   +2 more
exaly  

The denaturation of proteins III. The Folin-Ciocalteu reagent in the study of urea denaturation

Biochimica et Biophysica Acta, 1962
A N, GLAZER, H A, McKENZIE
openaire   +2 more sources

Reaction of thioureas with the Folin-Ciocalteu reagent

Analytica Chimica Acta, 1975
openaire   +1 more source