Biosurfactants are emerging molecules in the 21st century. However, their production intensification is still required for development of feasible bioprocesses. Therefore, this paper studies a new biosurfactant-producer, namely Geobacillus stearothermophilus DSM2313 during statistical optimization via response surface methodology. After analysis optimal pH = 7, glucose 50 g/L and NH4NO3 2 conce...

• Carboxylic bola biosurfactants can compete with thiols as copper sulfide collectors. This effect is explained by selective precipitation and beneficial foaming properties. A non-ionic biosurfactant floats sulfides non-selectively entrainment. Yeast-derived amphiphiles have attracted growing attention in various industrial sectors green reagents. However, their physico-chemical properties rele...

Surfactants are multipurpose products found in most sectors of contemporary industry. Their large-scale manufacturing has been mainly carried out using traditional chemical processes. Some the species involved their production considered hazardous and some industrial processes employing them categorised as “having potential negative impact on environment”. Biological surfactants have therefore ...

Because of significant yield losses caused by fungal pathogens, new efficient and environmentally safe methods pest control are needed, amphiphilic compounds (biosurfactants) produced many microbes considered a good alternative. In the present study, biosurfactants rhizosphere isolate Bacillus mojavensis P1709 were assessed for their ability to protect postharvest cherry tomatoes from decay myc...

Isolation and screening of microorganisms from oil contaminated soil samples with biosurfactant producing ability was investigated. The biosurfactant producing ability of the microorganisms isolated from the soil samples was investigated by hemolytic assay, drop collapse test, emulsification index and methylene blue agar plate method. The best isolate was identified as Pseudomonas aeruginosa ba...

Biofilms are bacterial communities embedded in exopolymeric substances that form on the surfaces of both man-made and natural structures. Biofilm formation industrial water systems such as cooling towers results biofouling biocorrosion poses a major health concern well an economic burden. Traditionally, biofilms treated with alternating doses oxidizing non-oxidizing biocides, but resistance inc...

The dsz biodesulfurization cluster from Rhodococcus erythropolis IGTS8 has been engineered under the control of heterologous broad-host-range regulatory signals to alleviate the mechanism of sulfur repression, and it was stably inserted into the chromosomes of different Pseudomonas strains. The recombinant bacteria were able to desulfurize dibenzothiophene more efficiently than the native host....