The present study investigates the economical production of bacterial cellulose (BC) byGluconacetobacter subsp. Xylinus (ATCC 10245) in 250 ml Erlenmeyer flasks cultivated under static conditions. fermentation media used contained food industrial by-product liquors, such as black strap molasses solution and corn steep liquor (CSL), which represents some most carbon nitrogen sources. However, because presence undesirable components (such coloring substances, heavy metals, other compounds)...

The effect of the solvents for silk fibroin (SF) extraction on its antimicrobial activity was studied. Extraction protocols were performed using LiBr (SFL) and Ajisawa's reagent (CaCl2:ethanol:H2O) (SFC). morphological structural characteristics extracted SF their composites assessed. Corresponding bactericidal activities against Staphylococcus aureus (ATCC 25923), Escherichia coli 25922) Pseudomonas aeroginosa 27853) performed. resulting solutions either casted into films or individually...

Silver nanoparticles (SN) were synthesized via the green approach of gamma radiation. Chitosan was used as both reducing and stabilizing agent. Studies involved influence various parameters four irradiation doses three silver precursor concentrations on produced nanoparticles. The UV–vis spectra proved characteristic surface plasmon resonance (SPR) SN whose intensities positions dependant concentrations. X-ray diffraction analyses transmission electron microscopy (TEM) observations...

Natural phenazines, as secondary metabolites of microorganisms, have recently gained much attention for their potential application biologically active antimicrobial compounds. The present study was performed in order to investigate the production a phenazine compound by locally isolated strain Pseudomonas aeruginosa. Thirty different strains were from soil and water on selective medium. From them, isolate 14-WANRC, selected due its high productivity colored after 5 days incubation King-A...

The use of traditional medicine, nowadays, has extended globally and gained popularity worldwide. growing importance value complementary medicine in the provision health care, on national global levels, are no longer limited exclusively to any specific regions or communities. Traditional medication involves herbal medicines, animal parts minerals; however, is most common large scale. Concisely, herb a plant part used for its scent, taste, flavour, therapeutic properties. Herbal medicines...

Exopolysaccharides nanoparticles (EPS-NPs), especially from probiotics, became one of the most innovative approaches for intelligent cancer therapy due to their stability and biocompatibility. In this study, a previously identified sulphated hetero-polysacchraide was extracted Weissella paramesenteroides MN2C2 partially purified. Some parameters operational culture conditions produced EPS were optimized. Nano-forms crude purified synthesised by sonication characterized Transmission Electron...

Background Lactic acid bacteria (LAB) have proven a great inhibitory effect toward phytopathogenic and fungi, giving them the importance as natural biological control agents without hazards to surrounding eco-system. Objective This study aims for local isolation of lactic bacterial strain active against different microorganisms especially phytopathogens. Materials methods Of 40 isolated strains, 36 were preliminarily characterized LAB using both Gram staining catalase test methods. Their...

Cancer is a major leading cause of death worldwide. However, lactic acid bacteria (LAB) were found to produce different anticancer agents, such as l- asparaginase (ASNase), which effectively contribute against the cancer cells growth. This study aimed for production ASNase from Weissella paramesenteroides MN2C2, well evaluation its and antioxidant properties. The maximal conditions be reached when 10% (v/v) strain was inoculated in MRS medium pH 6.5, then statically incubated 48h at 37°C....

Aim The aim of the study was optimization growth conditions for production inulinase as well continuous enzyme in an airlift bioreactor using Aspergillus niger cells. Methods First, by A. cells, different carbon and nitrogen sources, studied on a shake flask level. Second, cells were adsorbed onto carriers, their over several successive batches tested. Finally, economically-favorable immobilized linen fibers carried out crude inulin juice fermentation medium. Results Although all tested...