Valorization of Plant Biomass Through the Synthesis of Lignin-Based Hydrogels for Drug Delivery.

ABSTRACT: This study focuses on obtaining lignin-based hydrogels from pruning residues of orange trees in the Safor region (Valencia) using an alkaline extraction method. The structural analysis of the obtained lignin was carried out using Fourier-transform infrared spectroscopy (FTIR), which revealed the characteristic functional groups of lignin, as well as its structural monolignols: syringyl and guaiacyl. The thermal properties were analyzed using differential scanning calorimetry (DSC) and thermogravimetric analysis. The DSC thermogram revealed a relatively low glass transition temperature (T_g) of 67 °C, which may be attributed to partial lignin chain degradation during alkaline extraction. Soda lignin was obtained at 190 °C with an approximate yield of 10.8% relative to the i

SUBMITTER: Cardenas-Vargas N 

PROVIDER: S-EPMC12939969 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature