Title:
Orange Biomass Lignin and Hesperidin for the Synthesis of Lignin-based Nanoparticles as Promising Photoprotective Agents Against UV Radiation
Author(s):
Costa De Castro, S., Mendes Cirilo, D., da Silva das Neves, U., Tasic, L.
Document(s):
Paper
Poster
Abstract:
In this study, lignin, and hesperidin were extracted from orange biomass (OB), a residue generated in high amounts every year in Brazil. As a way to add value to the extracted compounds, lignin nanoparticles were produced, and loaded with different amounts of hesperidin (5, 25, and 50%), for possible applications as photoprotective agents. The synthesized nanoparticles were named as Np-Lig, Np-LigHsd5, Np-LigHsd25, and Np-LigHsd50. The characterization of the nanoparticles showed average sizes of 282.7 ± 78.0 nm, 293.3 ± 79.0 nm, 266.8 ± 94.0, and 522.5 ± 140.0 nm for Np-Lig, Np-LigHsd5, Np-LigHsd5, and Np-LigHsd50, respectively. The .-potential varied from -34 to -36.7 mV. The UV-Vis spectra showed higher UV absorption at 280 nm for nanoparticles with increasing amounts of Hsd indicating that these nanoparticles have greater photoprotective potential. The sun protection factor was determined in solution with the spectrophotometric method and the values found were: 2.2, 3.6, 3.5, 3.3, 4.8, and 8.1 for lignin, hesperidin, Np-Lig, Np-LigHsd5, Np-LigHsd25, and Np-LigHsd50, respectively.
Keywords:
biomass, lignin, nanoparticles, hesperidin, UV photoprotection
Topic:
Biomass Conversion to Bio-based Products and Chemicals
Subtopic:
Processes for bio-based chemicals and materials
Event:
32nd European Biomass Conference and Exhibition
Session:
6BV.10.21
Pages:
843 - 847
ISBN:
978-88-89407-24-0
Paper DOI:
10.5071/32ndEUBCE2024-6BV.10.21
Price:
FREE
