Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Lignin, an abundant and complex biopolymer, offers significant potential for high-value applications in diverse industries due to its antioxidant and UV-absorbing properties. However, its utilization in cosmetic formulations, particularly sunscreens, is impeded by its dark coloration. Herein, this study introduced an innovative approach for extracting light-colored lignin with well-preserved structure from wheat straw using oxalic acid dihydrate (OAD) under mild conditions. The OAD method significantly improved lignin color, accelerated the extraction process (within 5 min), and emphasized environmental sustainability, representing a marked improvement over traditional technique. Lignin isolated by the OAD method achieved yields up to 91.24 %, with an attractive light color and elevated purity. Comprehensive structural analyses revealed a substantial enrichment in phenolic hydroxyl groups and an advantageous S/G ratio, indicating superior antioxidant and UV-blocking efficacy. The antioxidant capacity, evaluated through DPPH radical scavenging assays, was exceptional, with an IC50 value below 0.1 mg/mL. Moreover, the addition of 5 % OAD-extracted lignin to pure cream indicated that SPF (SPF = 7.52) was higher than P25 (SPF = 5.92). This study underscores a highly efficient and environmentally benign method for producing premium, light-colored lignin, advancing its application in natural, sustainable cosmetic formulations.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.ijbiomac.2025.142909 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Methoxy substitution in the α-carbon of lignin side-chain inhibits its condensation for light-colored lignin extraction.
Int J Biol Macromol
August 2025
Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming 650224, China.
Lignin is a natural macromolecular within woody plant. Its integrally isolation is a challenging because the conventional preparation causes its dark brown. Herein, we reported a method for extracting light-colored lignin using a mixed solvent of 1,4-dioxane and methanol in acidic conditions, achieved by introducing methoxy groups onto the α‑carbon of lignin side chains via nucleophilic substitution.
View Article and Find Full Text PDFUnleashing the potential of lignin with innovative trifunctional binary deep eutectic solvent strategy: Isolation of uncondensed lignin.
Sci Adv
July 2025
State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Haidian District, Beijing 100083, P. R. China.
Highly efficient conversion of lignin into value-added chemicals and materials is trapped in the inevitable cleavage of β-O-4 linkages and formation of highly condensed structures with deep colors during lignin isolation. Here, we develop a trifunctional choline chloride/glyoxylic acid (ChCl/GA) binary deep eutectic solvent with a π-π conjugate structure and moderate acidity for the fast isolation of light-colored lignin with near proto-structures (exceeding 88% of delignification ratio for 1 hour). The synergetic interaction of GA and ChCl substantially reduced Gibbs free energy of acetal reaction and thoroughly captured reactive intermediates, precisely activating the following key functions: stabilizing β-O-4 linkages, inhibiting condensation reaction, and shielding -OH groups.
View Article and Find Full Text PDFSynergistic photocatalytic stabilization: Biohybrid lignin-ZnO nanocomposites for enhanced UV protection of octocrylene and avobenzone systems.
Int J Biol Macromol
July 2025
Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center, Jieyang 515200, China; Guangd
In sustainable materials engineering, designing rational and ecologically compatible ultraviolet (UV) protective materials to improve the efficiency of light protection is a major challenge. Sodium lignosulfonate (SL), a renewable biomass derivative possessing inherent UV-blocking and antioxidant properties, has been utilized as a foundational component in this research. Through one-pot synthesis approach, a light-colored sodium lignosulfonate zinc oxide composite (ZnO@SL) was successfully fabricated.
View Article and Find Full Text PDFPreparation of Light-Colored Botanical Sunscreen from Pink Birch Lignin.
ChemSusChem
July 2025
School of Chemistry and Chemical Engineering, State Key Laboratory of Advanced Papermaking and Paper-based Materials, South China University of Technology, Guangzhou, 510640, China.
Lignin holds significant potential in UV-blocking and skincare products. However, its application has been hindered by the dark color. Herein, a pink lignin (PL) is successfully extracted from birch under mild condition, with molecular weight and polydispersity index of 4680 Da and 1.
View Article and Find Full Text PDFExtracting light-colored lignin with high phenolic-OH from poplar by ultrasonic-assisted formic acid/phenol treatment to prepare transparent lignin/cellulose composite film.
Int J Biol Macromol
May 2025
College of Chemistry and Chemical Engineering, Qilu Normal University, Jinan 250200, China.
Lignin that has inherent antioxidant and UV absorption capacity can be incorporated with cellulose to prepare functional composite film. However, the dark color and low film-forming ability of industrial lignin limit its application in high-quality transparent films. In this work, ultrasound-assisted formic acid/phenol treatment (uFAPT) was used to extract phenolated and low-condensed lignin from poplar in view of the lignin priority principle.
View Article and Find Full Text PDF