MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202611024574 A) filed by Tanweer Alam; Praveen Kumar Dubey; Neha Yadav; Alka Sharma; and Laxmi Kant Rawat, Lucknow, Uttar Pradesh, on March 2, for 'nano-composite shellac based edible coating composition and method for preservation of perishable fruits.'

Inventor(s) include Tanweer Alam; Praveen Kumar Dubey; Neha Yadav; Alka Sharma; and Laxmi Kant Rawat.

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: "The present disclosure relates to a nano-composite edible coating composition and a method (100) for preservation of perishable fruits. The composition includes shellac nanoparticles, sodium alginate forming a continuous film-forming matrix, a non-ionic surfactant comprising Tween 80 in an amount of 0.1% to 1% (w/v), and a plasticizer comprising glycerol in an amount of 0.5% to 2% (w/v). The shellac nanoparticles are ultrasonically prepared and uniformly dispersed within sodium alginate matrix to form a semi-permeable hydrophobic-hydrophilic barrier coating having a thickness of 10 m to 200 m. The method includes dissolving shellac in ethanol, nanoprecipitation in aqueous Tween 80, ultrasonication at 21 kHz for 5 minutes to 30 minutes, mixing with sodium alginate, and applying the coating followed by drying for 1 hour to 6 hours. The coating reduces moisture loss, regulates gas exchange, and enhances storage stability of fruits stored at 4 2 C for up to 20 days."

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