MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202541068644 A) filed by Nitte Deemed To Be University on July 18, 2025, for Process For Extraction Of Betacyanin From Dragon Fruit Peel (selenicereus Spp.).
Inventors include Dr. Ramya Harsha; Ms Saloni Prabhakar; and Dr. Indrani Karunasagar.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: ABSTRACT PROCESS FOR THE EXTRACTION OF BETACYANIN FROM DRAGON FRUIT PEEL (SELENICEREUS SPP.) The present invention relates to an eco-friendly method for extracting betacyanin pigments from the peel of dragon fruit using a water- based Soxhlet extraction process. This invention provides a sustainable solution for the valorisation of agro-industrial fruit waste by utilizing dragon fruit peel, which is typically discarded, as a source of natural, antioxidant-rich pigments. The method involves drying the peel at 40°C and powdering the peel, followed by continuous extraction in a Soxhlet apparatus at 60°C using water as the extraction solvent. The aqueous extract is then concentrated by freeze drying to obtain a stable, high-yield betacyanin pigment. Unlike conventional methods that rely on organic solvents such as methanol or ethanol, this process uses water as a non-toxic, and food-safe solvent. The invention offers a reproducible and scalable technique that integrates principles of green chemistry and waste management. By combining a novel application of Soxhlet extraction with a water-based system and waste valorisation, the invention provides a cost-effective, sustainable alternative for producing natural colorants while contributing to environmental conservation.
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