Biodegradable cationic lignin for sustainable cleansing solutions
Innovative biodegradable cationic lignin, modified with glycidyl trimethylammonium chloride, offers a sustainable alternative to petroleum-derived surfactants for cleansing applications, enhancing water solubility and surface activity through quaternary ammonium groups.
Overview
Biodegradable cationic lignin, developed by the University of British Columbia, presents a sustainable and eco-friendly alternative to traditional petroleum-derived surfactants. By modifying lignin with glycidyl trimethylammonium chloride (GTMAC), the solution enhances lignin's water solubility and surface activity, making it suitable for cleansing applications. This innovation leverages cost-effective aqueous-phase modification, positioning lignin as a bio-based alternative that offers both economic and environmental benefits.
Technical specifications
- Modification Process: Lignin is modified using GTMAC in an aqueous media, introducing quaternary ammonium groups that enhance ionic affinity.
- Sustainable Source: Utilizes lignin from biorefineries, valorizing it into high-value applications.
- Versatility: Effective in binding with both hydrophilic and hydrophobic surfaces due to inherent amphiphilicity.
- Production Method: Involves dissolving lignin in NaOH, reacting with GTMAC at 70°C for an hour, followed by dialysis or ultrafiltration for purification.
- Evaluation and Testing: Degree of substitution measured via NMR, surface behavior assessed using quartz crystal microgravimetry, and biodegradability tested following OECD standards.
Technology readiness level
This innovative solution is at Technology Readiness Level 4, having been validated in a laboratory environment with plans for further testing and scale-up.
About University of British Columbia
UBC is a comprehensive public research university with major campuses in Vancouver and the Okanagan, among Canada’s largest and most internationally connected. Industry engages through a co-op talent pipeline and collaborative research spaces that include co-located clinical settings and on‑campus testbeds. A dedicated technology transfer office brokers partnerships, manages IP and licensing, and is complemented by an active venture accelerator and incubator network. Research is supported by competitive funding from Canada’s Tri‑Council agencies (NSERC, CIHR, SSHRC) and infrastructure investments from the Canada Foundation for Innovation, alongside provincial and industry sponsorship.
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