R Ragunathan

Antioxidant and Antimicrobial Properties of TiO2-ZnO Bimetal Nanoparticle Synthesized Using Leucas aspera L. Flower Extract

S Seema, D Nivethini, R Ragunathan & Jesteena Johney · South Asian Journal of Research in Microbiology · 2025

Aims: This study focuses on the biosynthesis of titanium dioxide (TiO₂) and zinc oxide (ZnO) bimetal nanoparticles using Leucas aspera L. flower extract and their evaluation for antioxidant and antimicrobial properties. Study Design: This study follows an experimental laboratory-...

Open access Research Article 10.9734/sajrm/2025/v19i4429

Isolation of Histamine Producing Bacteria (Escherichia coli) from Tiger Prawns (Penaeus monodon) and its Control Measures Using Plant Extracts

Christina Shalom, Chandra Prabha, R Ragunathan & Jesteena Johney · Asian Journal of Research in Biochemistry · 2025

Aims: The study aims to isolate, molecularly identify, and estimate histamine-producing bacteria from Penaeus monodon (tiger prawns) and evaluate their antibiotic resistance and histamine degradation potential using plant extracts. Study Design: Experimental study involving micro...

Open access Research Article 10.9734/ajrb/2025/v15i2374