MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641075857 A) filed by Paavai Engineering College; and Ms. S. Madhumitha on June 19, 2026, for Biodegradable Film Using Rice Starch Natural Ph Indicator.

Inventors include Ms. R. Akalya; Ms R Harsalya; Ms. S Mythilipriya; Ms. S Rashika; and Ms P Gomathi.

The application for the patent was published on June 26, 2026, under issue no. 26/2026.

Abstract: The present invention discloses a biodegradable and intelligent film for food packaging that enables real-time monitoring of food freshness through a visible colorimetric response. The film employs rice starch as a renewable, low-cost, biodegradable film-forming matrix, glycerol as a plasticizer to im...