BQC Polyphenol Quantification Assay Kit (Folin Ciocalteu Method) is a quick, easy, and reproducible assay to quantify phenolic compounds in a wide variety of samples:
- KB03006A is for samples/extracts prepared using aqueous solvents
- KB03006B is for samples/extracts prepared using organic solvents
This Phenolic Quantification Assay Kit is based on the Folin Ciocalteu (FC) method. In this method, the Folin Ciocalteau Reagent (FCR) oxidizes phenolic compounds to phenolates at alkaline pH resulting in the formation of a blue colored molybdenum-tungsten complex. The reduced FCR can be spectrophotometrically detected in the range of 690 to 710 nm with a maximum of absorbance at 700 nm.
Absorbance measured at 700 nm is directly proportional to the concentration of the phenolic compounds. Generally, Gallic Acid (GA) is used as the reference standard compound for the Folin Ciocalteu assay, and the results are expressed as Gallic Acid Equivalents (GAE).








