Detail publikace

Systematic assesment of lignin solubility for nanoparticle preparation from various sources

VOSTREJŠ, P. HRUŠKOVÁ, L. KOVALČÍK, A.

Originální název

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

Lignin, is one of the most abundant biopolymers on Earth, primarily arises as a by-product within the pulp and paper industry. Despite its prevalence, lignin is underutilized, lacking value-added applications. Nevertheless, lignin holds significant promise for diverse applications owing to its distinctive aromatic structure and properties, including antioxidant potential and UV shielding capabilities. Understanding lignin´s type, structure, and properties is crucial for its optimal utilization. Of particular importance is the assessment of lignin solubility, a property often evaluated through Hansen solubility parameters (HSP). Utilizing graphical methods, HSP aids in identifying suitable solvents for lignin. This study focuses on characterizing various lignin types acquired through different extraction methods (Kraft, Organosolv, Alkali, Soda). Determination of HSP facilitates solvent selection for lignin nanoparticle synthesis. Dimethyl sulfoxide exhibited the highest solubility for isolated lignin, while a tetrahydrofuran-water mixture showed promise for nanoparticle preparation. Various nanoparticle preparation methods and the impact of lignin concentration on particle size and stability were evaluated. Nanoparticles smaller than 50 nm were synthesized, with dialysis yielding more stable particles and decreasing lignin concentration, resulting in diminished particle size. The primary objective was to fabricate lignin nanoparticles with potent antioxidant properties, which were assessed via the ABTS radical scavenging assay. Comparative analysis revealed significant variations in antioxidant activity among lignin sources, underscoring the importance of source-specific considerations. Given the distinct physical and chemical attributes of lignin from different sources, the selection of a particular lignin type becomes imperative for specific applications. The presented work was supported through the internal Brno University of Technology project FCH-S-24-8526.

Klíčová slova

Lignin, nanoparticles

Autoři

VOSTREJŠ, P.; HRUŠKOVÁ, L.; KOVALČÍK, A.

Vydáno

15. 4. 2024

Nakladatel

AMCA, spol. s.r.o.

Místo

Praha

ISBN

978-80-88214-48-9

Kniha

Book of abstract of the 11th International Conference on Chemical Technology

Edice

první

Strany od

170

Strany do

170

Strany počet

214

URL

https://www.icct.cz/cs/Amca-ICCT/media/content/2024/documents/Book_of_abstracts_-ICCT2024.pdf

BibTex

@misc{BUT188594,
  author="Pavel {Vostrejš} and Lucie {Hrušková} and Adriána {Kovalčík}",
  title="Systematic assesment of lignin solubility for nanoparticle preparation from various sources",
  booktitle="Book of abstract of the 11th International Conference on Chemical Technology",
  year="2024",
  series="první",
  pages="170--170",
  publisher="AMCA, spol. s.r.o.",
  address="Praha",
  isbn="978-80-88214-48-9",
  url="https://www.icct.cz/cs/Amca-ICCT/media/content/2024/documents/Book_of_abstracts_-ICCT2024.pdf",
  note="abstract"
}