Depolymerisation of kraft lignin to obtain high value-added products: antioxidants and UV absorbers-Reference-Cited by-同舟云学术

Depolymerisation of kraft lignin to obtain high value-added products: antioxidants and UV absorbers

Published:2022-07-12 Issue:9 Volume:76 Page:845-852
ISSN:0018-3830
Container-title:Holzforschung
language:en
Short-container-title:

Author:

Aufischer Gottfried¹²,Süss Raphaela¹²,Kamm Birgit¹³,Paulik Christian²

Affiliation:

1. Kompetenzzentrum Holz GmbH, Wood Chemistry & Biotechnology , Altenbergerstr. 69 , 4040 Linz , Austria

2. Johannes Kepler University Linz, Institute for Chemical Technology of Organic Materials , Altenbergerstr. 69 , 4040 Linz , Austria

3. Faculty of Environment and Natural Sciences , Brandenburg University of Technology Cottbus-Senftenberg , 03013 Cottbus , Germany

Abstract

Abstract This study demonstrates that bio-based products of lignin depolymerisation can potentially replace common antioxidants and UV absorbers in the plastics and cosmetics industries. The kraft lignin Indulin AT was used to obtain low-MW lignin and monomers & oligomers rich in phenolic hydroxyl groups. Both thermo-oxidative stability and antioxidant activity significantly improved upon lignin depolymerisation. The results from oxidation induction time differential scanning calorimetry (OIT-DSC) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) measurements show that the lignin based depolymerisation products are comparable with commercial antioxidants like pentaerythritol-tetrakis-(3-(3,5-di-tert-butyl-4-hydroxyphenyl)-propionate) (Irganox 1010). UV/vis spectroscopy was investigated to confirm absorption of the depolymerisation products in the UVA and UVB range (280–400 nm).

Publisher

Walter de Gruyter GmbH

Subject

Biomaterials

Link

https://www.degruyter.com/document/doi/10.1515/hf-2022-0023/pdf

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