Seasonal variation of polyphenolics in Ascophyllum nodosum (Phaeophyceae)
Both quantitative and qualitative analysis of phlorotannins revealed variations over the course of the year, with the highest phenol content during the year was reached in July.
Evaluation of quantitative methods for the determination of polyphenols in algal extracts.
- S. Parys, A. Rosenbaum, S. Kehraus, G. Reher, K. Glombitza, G. König
- ChemistryJournal of Natural Products
- 1 December 2007
Four methods for the quantitative determination of phlorotannins are compared and the determination using Folin-Ciocalteu's phenol reagent and qHNMR proved to be the most reliable and precise methods.