MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202641095906 A) filed by Vels Institute Of Science, Technology And Advanced Studies Vistas on August 07, 2026, for Biodegradable Colorimetric Spoilage Sensor Film From Agro-Food Waste For Protein Food Packaging Applications.
Inventors include Amjath Ahamed W; Meenambiga Setti Sudharsan; and Jayashree P.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The present invention relates to a biodegradable intelligent packaging film for real-time spoilage detection of protein-rich perishable food products. The film comprises a biopolymeric film matrix formed from pectin and chitosan, with a plurality of biopolymeric nanospheres dispersed therein. A natural pigment system comprising anthocyanin-containing pigment extracts and betalain-containing pigment extracts derived from agro-food waste sources, including grape peel, beetroot, red amaranthus, and jamun, is encapsulated within the nanospheres. The natural pigment system produces a visible colorimetric change in response to pH variation caused by volatile basic spoilage compounds released during food deterioration. The nanospheres improve pigment stability, controlled responsiveness, and sensitivity within the film matrix. The combination of the biopolymeric matrix, encapsulated pigment system, and biodegradable structure enables real-time freshness monitoring, wider pH-responsive colour variation, antioxidant activity, antimicrobial activity, and correlation with Total Viable Count and Total Volatile Basic Nitrogen, thereby providing a sustainable smart packaging solution.
Disclaimer: Curated by HT Syndication.
