MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202541121478 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Dec. 4, 2025, for 'preparation of bio-based food preserving packaging material from laccase synthesized titanium dioxide nanoparticles: a green food packaging solution.'

Inventor(s) include Ashmitha Kalairaj; Swethashree Rajendran; Shrinidhi Sureshbabu; T. Senthilvelan; and Dr Ramya Mohan.

The application for the patent was published on Feb. 6, under issue no. 06/2026.

According to the abstract released by the Intellectual Property India: "This research proposes the development and integration of laccase-synthesized titanium dioxide nanoparticles (LacTiOx NPs) into cellulose paper for food packaging. Current study is aiming to enhance mechanical, barrier, and antimicrobial properties. White Rot fungi will be isolated, screened, and identified through 18s rRNA sequencing. Laccase production will be done by using agro-waste products like coconutoil cake, Tea waste and Saw dust by the method of submerged fermentation and optimized using Response Surface Methodology (RSM). Characterization of the enzyme and LacTiOx NPs will be performed using various analyses such as cyclic voltammetry, SDS PAGE, SEM, TEM, FTIR, XRD, AFM, and EDS. The LacTiOx NPs will be utilized to coat cellulose paper, which will subsequently undergo testing for mechanical strength, barrier properties, and antimicrobial efficacy. The study will comprehensively evaluate the coated paper's effectiveness in packaging a variety of food products, including fruits, vegetables, meat (poultry & seafood), bakery items, and chocolates. Key parameters to be assessed include morphological changes, color stability, ethylene production, nutrient and moisture content, firmness, weight, taste, appearance, respiration rate, oxygen and carbon dioxide levels, and overall shelflife. Furthermore, the mechanical properties of the coated paper, such as strength, durability, water vapor transmission rate, and oil and grease resistance, will be evaluated. Environmental and safety aspects, including biodegradability and toxicity, will also be assessed. The expected outcome of this study is that LacTiOx NP-coated cellulose paper will significantly enhance the shelflife and quality of packaged foods by providing superior mechanical strength, barrier properties, and antimicrobial activity. This innovative packaging material is anticipated to offer a sustainable and eco-friendly alternati synthetic food packaging solutions, paving the way for future optimizations and validations."

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