In this study, we showed that supplementing the culture medium with fibrinogen induced biofilm formation by Streptococcus suis in a dose-dependent manner. Biofilm-grown S. suis cells were much more resistant to penicillin G than planktonic cells. S. suis bound fibrinogen to its surface, a property that likely contributes to biofilm formation.
- American Society for Microbiology
- Fibrinogen induces biofilm formation by streptococcus suis and ...
Stripper Wells goes from 1 BBL to 15 BBL for less $100/day
Feb 2017, Jenfitch, LLC working with a private independent oil service firm from Houston, Texas recently conducted a field study on four different low producing oil wells (Stripper Wells) in Pecos County, TX. These wells were generating 1-2 barrels of oil per day. Using several different methods of injecting JC 9450 into the well, the production increased up to 15 barrels per day for 5 days and then dropped to 10 barrels per day for two weeks. The service operator then injected 5 gallons per day of JC 9450 into...
Removing Legionella pneumophila and biofilms from water supply systems using plant essential oils
Antibacterial and antibiofilm activities of sage (Salvia officinalis), thyme (Thymus vulgaris), peppermint (Mentha x piperita) and lemon (Citrus limonum) essential oils (EOs), supplied as commercial preparations, were investigated on Legionella pneumophila. Results showed that all EOs had antibacterial activity. Lemon oil demonstrated the best activity, with minimum inhibition concentration (MIC) and minimum bactericidal concentration values detected as 0.83–1.25 and 1.25–3.75 μL/mL, respectively. Antibiofilm...
Effect of sodium hypochlorite on typical biofilms formed in drinking water distribution systems
Human health and biological safety problems resulting from urban drinking water pipe network biofilms pollution have attracted wide concern. Despite the inclusion of residual chlorine in drinking water distribution systems supplies, the bacterium is a recalcitrant human pathogen capable of forming biofilms on pipe walls and causing health risks. Typical drinking water bacterial biofilms and their response to different concentrations of chlorination was monitored. The results showed that the four bacteria all...
Fungal biodiversity and mycotoxigenic fungi in cooling-tower water systems in Istanbul, Turkey
This is the first study to assess fungal diversity and mycotoxigenic fungi in open recirculating cooling-tower (CT) water systems (biofilm and water phase). The production capability of mycotoxin from fungal isolates was also examined. The mean fungal count in 21 different water and biofilm samples was determined as 234 CFU/100 mL and 4 CFU/cm2. A total of 32 species were identified by internal transcribed spacer (ITS) sequencing. The most common isolated fungi belonged to the genera Aspergillus and Penicillium,...
From biofilm ecology to reactors: a focused review
Biofilms are complex biostructures that appear on all surfaces that are regularly in contact with water. They are structurally complex, dynamic systems with attributes of primordial multicellular organisms and multifaceted ecosystems. The presence of biofilms may have a negative impact on the performance of various systems, but they can also be used beneficially for the treatment of water (defined herein as potable water, municipal and industrial wastewater, fresh/brackish/salt water bodies, groundwater) as well...