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Updated: Jun 28, 2026
Fast and Specific Assessment of the Halogenating Peroxidase Activity in Leukocyte-enriched Blood Samples
Published on: July 28, 2016
Bromoperoxidase activity and vanadium level of the brown alga Ascophyllum nodosum
Jens Hartung1, Oliver Brücher, Diana Hach
1Fachbereich Chemie, Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse, D-67663 Kaiserslautern, Germany. hartung@chemie.uni-kl.de
Abstract:
Vanadium-dependent peroxidase activity in extracts of Ascophyllum nodosum growing in the intertidal region close to Roscoff/France, and algal vanadium levels, followed approximately similar seasonal variation, as deduced from a study lasting from April 2005 to March 2006. High peroxidase (PO) activity was found in extracts obtained from algae collected in between midwinter to spring [approximately 100-190 U per g dry mass (dm), triiodide assay] with a maximum in April. Periods of reduced PO activity lasted from summer to early winter (approximately 50-90 U per g dm). High vanadium levels (1.5-2.2 mg kg(-1)dm) were found in algae collected from midwinter to spring, whereas reduced levels (0.6-1.4 mg kg(-1)dm) were found in summer to early winter.
