MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202641107311 A) filed by Kongu Engineering College on September 07, 2026, for Biodegradable Chromogenic Food Freshness Indicator And Method Of Preparing Thereof.

Inventors include Dhivya Bharathi. N; Dr. V. Sangeetha; Kamalikaa M S; and Nandhana K.

The application for the patent was published on September 11, 2026, under issue no. 37/2026.

Abstract: The present invention relates to a biodegradable chromogenic freshness indicator for monitoring freshness of perishable food products. The indicator comprises red- cabbage-derived anthocyanin stabilized with polysorbate 80 and immobilized within a rice-flour-derived matrix comprising rice starch and end...