MUMBAI, India, Feb. 27 -- Intellectual Property India has published a patent application (202641018695 A) filed by G Ashwin Prabhu; Sridevi R; Harshitha P; Harsha D; Supraja R; Nandita R; Deepika M; and Sowmiya M, Chennai, Tamil Nadu, on Feb. 19, for 'an inexpensive plant-based indigenous aquarium fish feed for improving fish immunity using spirulina and terminalia catappa.'

Inventor(s) include Sridevi R; Harshitha P; Harsha D; Supraja R; Nandita R; Deepika M; and Sowmiya M.

The application for the patent was published on Feb. 27, under issue no. 09/2026.

According to the abstract released by the Intellectual Property India: "The present invention relates to the field of aquaculture nutrition and pertains to the development of a plant-based indigenous aquarium fish feed designed to improve fish health while eliminating the limitations of commercially available feeds. The feed formulation incorporates the key functional ingredients Spirulina and Terminalia catappa leaf in a pelletized formulation along with plant-derived protein sources, carbohydrate sources and natural binding agents, without the inclusion of antibiotics, preservatives, or synthetic additives, thus distinguishing itself from earlier studies. The preparation process involves shade-drying and grinding, followed by mixing in predetermined proportions to form a homogeneous dough with water, pelletizing the mixture and drying at a controlled temperature, preferably at lower temperature. This is done to preserve the naturally occurring bioactive compounds such as carotenoids, phenolic compounds, flavonoids, terpenoids and fatty acid derivatives that not only enhance fish immunity and digestion but also maintain water quality and reduce nutrient leaching. Characterization of the formulated feed included proximate analysis and bioactive feed analysis to determine its nutritional and functional constituents. These analyses establish the nutritional suitability of the feed for aquarium fish. This invention provides an eco-friendly, sustainable and scalable alternative to the chemical-based fish feeds, particularly suited for MSMEs and indigenous manufacturing units."

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