Please use this identifier to cite or link to this item: 10.1088/1757-899X/38/1/012033
Title: Role of paramagnetic polyconjugated clusters in lignin antioxidant activity (in vitro)
Authors: Dizhbite, T.
Ponomarenko, J.
Andersone, A.
Dobele, G.
Lauberts, M.
Krasilnikova, J.
Mironova-Ulmane, N.
Telysheva, G.
Rīga Stradiņš University
Keywords: 2.5 Materials engineering;3.1. Articles or chapters in proceedings/scientific books indexed in Web of Science and/or Scopus database;General Materials Science;General Engineering
Issue Date: 2012
Citation: Dizhbite , T , Ponomarenko , J , Andersone , A , Dobele , G , Lauberts , M , Krasilnikova , J , Mironova-Ulmane , N & Telysheva , G 2012 , Role of paramagnetic polyconjugated clusters in lignin antioxidant activity (in vitro) . in International Conference "Functional Materials and Nanotechnologies" (FM &NT-2012) : Conference Proceedings . 1 edn , vol. 38 , 012033 , IOP Conference Series: Materials Science and Engineering , International Conference "Functional Materials and Nanotechnologies" (FM &NT-2012) , Riga , Latvia , 17/04/12 . https://doi.org/10.1088/1757-899X/38/1/012033
conference
Series/Report no.: IOP Conference Series: Materials Science and Engineering
Abstract: Using physico-chemical methods (EPR, SEC, Py-GC/MS and UV/VIS spectroscopy) and wet chemical analysis, the characteristics of 6 hardwood lignins in terms of functionality, molecular weight and composition of lignin substructures were determined and considered together with the results of DPPH•, ABTS •+ and O2•- antioxidant assays with the aim to understand the relationships governing antioxidant properties of lignin. The strong positive linear correlation between lignin antioxidant capacity in the three assays used and the extent of conjugation of paramagnetic polyconjugated clusters in lignin macromolecules was found. The biological activity of the most active alkaline lignins was assessed by in vitro experiment with human blood.
DOI: 10.1088/1757-899X/38/1/012033
ISSN: 1757-8981
Appears in Collections:Research outputs from Pure / Zinātniskās darbības rezultāti no ZDIS Pure

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