Detail publikace

Innovative antimicrobial lignins: Extraction and characterization for advanced hydrogel applications

ČERNEKOVÁ, N. HRICOVINI, M., VOSTREJŠ, P. KOVALČÍK, A.

Originální název

Innovative antimicrobial lignins: Extraction and characterization for advanced hydrogel applications

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The antioxidant and antimicrobial activities of lignin are often emphasized, however, not every type exhibits these properties. In this work, water-soluble fractions of alkali lignin (AL), poly-(caffeyl alcohol) lignin (PCFA), pyrolytic lignin (PL) and grape seed lignin (GSL) were prepared. The original and water-soluble lignin fractions were comprehensively characterized using high-resolution 2D NMR spectroscopy. Notably, water-soluble fractions of PCFA, PL and GSL lignins exbihited 3.6 to 3.9 higher antioxidant activities than the original lignins despite having a phenolic content approximately 12 % to 55 % lower. Additionally, these fractions demonstrated antimicrobial activities against Micrococcus luteus, Serratia marcescens and Escherichia coli. The potential of water-soluble lignin fractions as active modifiers for physically crosslinked hydrogels was also investigated. Specifically, PL/F lignin served as an antioxidant and antimicrobial agent for modifying carrageenan without disrupting its viscoelastic and swelling behaviour. Carrageenan hydrogels with 6 % PL/F lignin showed an antioxidant activity of 219.6 mg TE g-1 hydrogel and reduction rates of 43.9 % against M. luteus, 31.6 % againstS. marcescens and 20.6 % against E. coli.

Klíčová slova

antioxidant properties, antibacterial properties, hydrogel, lignin, NMR

Autoři

ČERNEKOVÁ, N.; HRICOVINI, M., VOSTREJŠ, P.; KOVALČÍK, A.

Vydáno

10. 3. 2025

Nakladatel

Elsevier

ISSN

1879-0003

Periodikum

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

Ročník

307

Číslo

1

Stát

Nizozemsko

Strany počet

11

URL

https://www.sciencedirect.com/science/article/pii/S0141813025025103

BibTex

@article{BUT197356,
  author="Nicole {Černeková} and Michal {Hricovini} and Pavel {Vostrejš} and Adriána {Kovalčík}",
  title="Innovative antimicrobial lignins: Extraction and characterization for advanced hydrogel applications",
  journal="INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES",
  year="2025",
  volume="307",
  number="1",
  pages="11",
  doi="10.1016/j.ijbiomac.2025.141959",
  issn="1879-0003",
  url="https://www.sciencedirect.com/science/article/pii/S0141813025025103"
}