optical density

Antimicrobial Efficacy of Silver Nanoparticles (AgNPs) in Combination with Hand Sanitizer against Foodborne and Spoilage Bacteria

Neha Chatterjee, Akshada Shankar Ganesh, Arjya Roy & Aniesha Owlak · Microbiology Research Journal International · 2026

Silver nanoparticles (AgNPs) are recognized for their broad-spectrum antimicrobial properties against foodborne bacteria, including E. coli, S. aureus, and B. subtilis. This study investigated whether AgNPs at varying concentrations (0.10%, 0.25%, 0.50%) could enhance the antimic...

Open access Research Article 10.9734/mrji/2026/v36i41735

Antibacterial and Biofilm Inhibition Activities of Nicotiana tabacum Extracts against Streptococcus mutans Isolated from the Oral Cavity

K. E. N. Nwanekwu · Microbiology Research Journal International · 2020

Aim: To determine the antibacterial activity and biofilm inhibitory activity of Nicotiana tabacum leaf extract against Streptococcus mutans isolated from oral cavity. Place and Duration of Study: Department of Microbiology, Faculty of Science, Imo State University, Owerri, Nigeri...

Open access Research Article 10.9734/mrji/2020/v30i330199

Shelf Life Studies of Carotenoid Pigments Produced from Rhodotorula minuta

K. Shivalkar Yadav & R. Prabha · Microbiology Research Journal International · 2017

Aim: Storage stability of carotenoid pigment (extracellular and intracellular) extracted from Rhodotorula minuta grown in Malt Yeast Extract Broth (MYEB), coconut water and rice was studied for a period of 15 days at ambient temperature (29°C) and refrigeration temperature i.e. 4...

Open access Research Article 10.9734/MRJI/2017/30967