MUMBAI, India, Jan. 9 -- Intellectual Property India has published a patent application (202531129754 A) filed by Brainware University, Kolkata, West Bengal, on Dec. 21, 2025, for 'green extraction and precipitation process for high-purity lignin recovery from rice husk and stalk biomass using organic acids and biocompatible solvents.'
Inventor(s) include Dr. Prashant Shukla; Wasika Mullick; Atayati Sen; Ajay Barman; Nabanita Sarkar; Anisha Rarafder; Megha Rani Maji; and Dr. Paramita Ghosh.
The application for the patent was published on Jan. 9, under issue no. 02/2026.
According to the abstract released by the Intellectual Property India: "The present invention provides a sustainable and efficient process for extracting high-purity lignin from rice husk and stalk biomass through a mild-temperature treatment using organic acids and a biocompatible solvent system. The method integrates controlled pretreatment, optimized solvent-biomass interaction, and selective precipitation to produce structurally intact lignin suitable for industrial applications such as biopolymers, adhesives, coatings, and value-added chemicals. The system further enhances resource utilization through energy-efficient operations, reduced chemical load, and environmentally responsible waste handling. This invention addresses the limitations of conventional high-temperature chemical pulping methods by offering a greener, safer, and more economical alternative for lignin recovery from abundant agricultural residues."
Disclaimer: Curated by HT Syndication.
