Results: 62

Antimicrobial activity of Tetradenia riparialeaf essential oil

Food spoilage is a widely neglected problem and the constant use of synthetic fungicides could develop resistant fungi. The objective of this study was to evaluate the chemical composition and antimicrobial activity of Tetradenia riparialeaf essential oil against foodborne disease microor...

Identification of antarctic soil bacteria exhibiting antiproliferative activity against a colon cancer cell line

Int. j. morphol; 41 (1), 2023
SUMMARY: Cancer is the second leading cause of death in the world and colorectal cancer is the only cancer that has shown a sustained increase in mortality in the last decade. In the search for new chemotherapeutic agents against cancer, extremophilic microorganisms have shown to be a potential source to...

Modulating the production of xylanase by Bacillus pumilus BS131 through optimization using waste fiber sludge

Braz. j. biol; 83 (), 2023
Abstract In recent days, cheapest alternative carbon source for fermentation purpose is desirable to minimize production cost. Xylanases have become attractive enzymes as their potential in bio-bleaching of pulp and paper industry. The objective of the present study was to identify the potential ability ...

Isolation and screening of chromium resistant bacteria from industrial waste for bioremediation purposes

Braz. j. biol; 83 (), 2023
Abstract Chromium (VI) a highly toxic metal, a major constituent of industrial waste. It is continuously release in soil and water, causes environmental and health related issues, which is increasing public concern in developing countries like Pakistan. The basic aim of this study was isolation and scree...

Antifungal potential of biosurfactants produced by strains of Bacillus spp. (Bacillales: Bacillaceae) selected by molecular screening

Rev. biol. trop; 70 (1), 2022
Introduction: Bacillus species are used as biological controllers for phytopathogenic fungi, and the mechanisms to produce controllers include biosynthesis of lipopeptide biosurfactants with antifungal activity. Objective: To evaluate the antifungal potential of the biosurfactants produced by Bacillus st...

Ludwig's angina complicated with a massive necrotizing fasciitis caused by an unusual pathogen: Bacillius spp

Ludwig's angina and necrotizing fasciitis are aggressive infectious manifestations that can present in the cervicofacial region. The severity of these entities depends, up to some extent, to the immunological state of the patient. Diabetes mellitus alters the immune system, allowing maxillofacial infecti...

The importance of environments and surfaces hygienization in pandemic times (Covid-19): a microbiological analysis in places for physical activity practice

Acta sci., Health sci; 44 (), 2022
The objective of this study was to analyse microbiological organisms in different locations and regions for physical activity in the city of João Pessoa, Brazil. Samples were collected on various objects used, such as: mattresses, drinking fountains, gloves, cell phones and others. The s...

Biodegradation of petroleum by bacteria isolated from fishes of Indian Ocean

Braz. j. biol; 82 (), 2022
In this study, oil degrading bacteria discovered from fish living near the oil ports at Karachi in Pakistan were characterized. The bacteria isolated from skin, gills, and gut in fish could consume crude oil as a source of carbon and energy. Total 36 isolates were tested using Nutrient Agar (NA) and MSA ...

Endophytic bacteria Bacillus safensis and Pseudomonas hibiscicola and their ability to increase rice seedling growth

Endophytic bacteria Bacillus safensis RS95 and Pseudomonas hibiscicola RS121 were evaluated for their ability to promote the growth of rice seedlings and produce indole-acetic acid (IAA) and siderophores and to solubilize phosphates. ‘Guri’ rice seeds were immersed in bacterial endophyte cell suspens...

Calidad microbiológica del aire en seis áreas de la microestación biológica- Zoocriadero de la Universidad Nacional Agraria de la Selva – Tingo María – Perú

El presente trabajo de investigación tiene como objetivo evaluar la calidad microbiológica del aire en seis áreas de la Microestación Biológica-Zoocriadero de la Universidad Nacional Agraria de la Selva-Tingo María-Perú; procediéndose de la siguiente manera: Se seleccionaron seis áreas de muestr...