MUMBAI, India, Nov. 6 -- Intellectual Property India has published a patent application (202641129074 A) filed by National Institute Of Food Technology, Entrepreneurship And on October 29, 2026, for A Process For Preparing A Stable Hibiscus-Based Natural Food Colourant By Vacuum Oven Drying.

Inventors include Dr. M. Loganathan; and Rajshri Naveen.

The application for the patent was published on November 06, 2026, under issue no. 45/2026.

Abstract: The present disclosure proposes a process for preparing a stable hibiscus-based natural food colourant by vacuum oven drying, utilizing Hibiscus rosa-sinensis flower petals as a natural source of colourant and subjecting the flower petals to vacuum oven drying under specified drying conditions ...