A total of 68 morphologically different actinomycetes were isolated from the saltpan soils of Vedaranyam, Tamilnadu, India and tested for their antimicrobial activity by the cross-streak method. Among the strains tested, VPTSA18 showed strong antimicrobial activity. The culture filtrate was extracted with different solvents and tested against 11 bacterial… (More)
Spirulina platensis is one of the most potential microalgae explored for antibacterial, antiviral and anti-cancerous properties. However, its antibiofilm potential has not been studied. Biofilms are of significant interest as they confer resistance towards antimicrobials and host immunity both in diverse group of bacteria. Exploring Spirulina towards the… (More)
Emergence of extended antibiotic resistance among bacterial pathogens often leads to the failure of existing antibiotics to treat bacterial infections; therefore, there is an urgent need to look for novel alternative treatment measures. The aim of this study was to evaluate the anti-quorum sensing (QS) potential of Synechococcus sp., to prevent the onset of… (More)
A variety of foods and environmental sources harbor bacteria that are resistant to one or more antimicrobial drugs used in medicine and agriculture. Antibiotic resistance in Escherichia coli is of particular concern because it is the most common Gram-negative pathogen in humans. Hence this study was conducted to determine the antibiotic sensitivity pattern… (More)
The incidence of fungal disease has increased dramatically over the past decades, mainly due to the emergence and transmission of antifungal resistance within the fungal pathogens. The present study investigates the use of novel antifungal compound 4-Phenyl-1-Napthyl Phenyl Acetamide (4P1NPA), isolated from marine Streptomyces sp. DPTB16 as a potent… (More)
Cr(VI) at 2.5, 5, 7.5 and 10 mg/l was removed over 1–5 days by a freshwater cyanobacterium, Chroococcus sp. 2.5 mg Cr(VI)/l gave the optimum rate. With 5 mg Cr(VI)/l, activities of superoxide dismutase and catalase were increased. Amounts of palmitic (16:0), stearic (18:0) and oleic acid (18:1) in the cell also increased after exposure to Cr(VI).
Immobilized forms of two marine cyanobacteria, Oscillatoria sp. NTMS01 and Phormidium sp. NTMS02, were selected for the removal of chromium (VI) ions from an aqueous solution. Biosorption was studied as a function of pH (1–6), contact time (5–180 min) and initial chromium concentration (1–3 mg/L) to compare the maximum capacity of two immobilized marine… (More)