MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641051259 A) filed by Nitte College Of Pharmaceutical Sciences; Nitte Meenakshi Institute Of Technology; Dr. N V L Sirisha Mulukuri; and Ms. Harshita Kinza, Bangalore, Karnataka, on April 22, for 'environment-friendly herbal mosquito repellent cream composition incorporating hempseed cake (cannabis sativa) waste by-product and method of preparation thereof.'
Inventor(s) include Nitte College Pharmaceutical Sciences; Nitte Meenakshi Institute Technology; Dr. N V L Sirisha Mulukuri; and Ms. Harshita Kinza.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to an environment-friendly herbal mosquito repellent cream composition (114) and to a method for its preparation. The said composition comprises a synergistic blend of citronella oil (102a), eucalyptus oil (102b) and hemp seed oil (102c) together with a novel hempseed cake (108a) ethanolic extract (108b) obtained from the solid waste residue of the hemp-seed oil extraction industry, dispersed in a Carbopol (106a) hydrogel matrix neutralized with triethanolamine (104d) and further comprising propylene glycol (104a), methyl paraben (104b), Tween 80 (104c), ethanol (106c) and purified water (106b). The system (100) comprises an oily phase module (102), an aqueous phase module (104), a gelling agent module (106), a hempseed cake module (108), a mechanical mixing unit (110), a characterization unit (112), a performance evaluation unit (116) and a repellency data output (118), all configured to cooperate in the preparation and validation of the said cream composition by way of a cold-process method at ambient temperature. The present invention ensures a natural, biodegradable, skin-safe and economically attractive herbal mosquito repellent cream that valorizes an agro-industrial waste by-product, achieves a mosquito repellency of up to approximately 87.5% against a commercial reference standard, and addresses the long-felt need in the art for eco-innovative alternatives to synthetic chemical mosquito repellents in alignment with the principles of sustainability and circular economy."
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