MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049570 A) filed by Sangeethabaskaran; Rajalakshmi P; Deekshi K.; Jerusha Shirlyn Abraham; Sindhugowri G; and V S Shreyashri, Virudhunagar, Tamil Nadu, on April 18, for 'sustainable valorization of banana pseudo- stem lignin for the production of bio-based chitosan.'
Inventor(s) include Sangeethabaskaran; Rajalakshmi P; Deekshi K.; Jerusha Shirlyn Abraham; Sindhugowri G; and V S Shreyashri.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "Banana pseudo-stem is a waste material that is produced in large quantities and mostly thrown away even though it contains lignocellulose. The present invention is dedicated to sustainable valorization of banana pseudo-stem lignin to make chitosan, a high-value biopolymer with a broad spectrum of biomedical, pharmaceutical, and environmental uses. The suggested technique presents a more environmentally friendly and economical way by combining lignin extraction, its purification, and its further conversion into chitosan, with the help of innovative biochemical and chemical reactions. This approach contrasts with traditional chitosan production (which is mainly dependent on crustacean shells), thus using plant waste material, which consequently alleviates the burden on the environment and reliance on marine resources. The process developed guarantees high yield, better purity and better functional properties for the resultant chitosan. Moreover, the produced chitosan is promising in its antimicrobial and biodegradable properties, which may be utilized in food packages, wastewater and drug delivery systems. This invention does not only facilitate waste-to-wealth approaches but also facilitates circular bio-economy and sustainable material development. The process provides a new approach to the management of agricultural waste by producing economic and environmental advantages by changing banana pseudo-stem lignin into useful bio-based chitosan."
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