An eco-friendly process for the silver nanoparticles (Ag-NPs) biosynthesis was investigated using fungus Monascus purpureus as a safe and commercially used microorganism. M. growth filtrate reduction of aqueous nitrate into Ag-NPs with almost 100% size range 1-7 nm, which considered one smallest microbial biosynthesized Ag-NPs. The were structurally characterized UV, FTIR, DLS, TEM, XRD. stable after 3 months no alteration in shape or size. showed reductase activity, whereas its pigments...

Cadmium sulphide is one of the most promising materials for solar cells and great interest due to its useful applications in photonics electronics, thus development bio‐mediated synthesis cadmium nanoparticles (CdS NPs) essential areas nanoparticles. The present study demonstrates first time eco‐friendly biosynthesis CdS NPs using yeast Trichosporon jirovecii . were confirmed by UV‐Vis spectrum characterized X‐ray diffraction assay electron microscopy. Scanning transmission microscope...

The isolation and assessment of the active constituents in polar non-polar crude extracts Saussurea costus roots as antifungal agents, against Candida albicans non-C. (NAC) species, was aim this current investigation. SEM "Scanning electron microscopy" imaging provided potential action modes n-hexane extract (nhhE) toward spp., whereas TLC-DB "Thin layer chromatography-direct bioautography" employed for detecting anticandidal compounds. nhhE had greatest biocidal activity all strains...

Antibiotic resistance is one of the most significant challenges 20-s century, and misuse antibiotics a driver antimicrobial resistance. This study aimed to assess prevalence multidrug resistance, detection its produce virulence factors, including extended-spectrum β-lactamases (ESβLs), biofilm, siderophores produced by bacterial species isolated from cancer patients. One hundred seventy-five Gram-negative isolates were different samples collected patients admitted National Cancer Institute...

Abstract Single-cell oils (SCO) produced by oleaginous yeast hold promise as a sustainable alternative for producing nutritionally and pharmaceutically valuable lipids. However, the accumulation of varies substantially between spp. Consequently, identifying well-suited producers with high innate capacity lipids biosynthesis is paramount. Equally important optimizing culturing processing conditions to realize total production potential selected strains. The marine Rhodotorula mucilaginosa...

Background: Trichoderma viride is a cellulose-biodegrading fungus which produces high amount of cellulases with higher ratio β-glucosidase/total cellulase in its enzyme mixture compared to that the complex T. reesei strains. The culture optimization for production by has not been previously studied. Consequently, investigation on enhancement activity and productivity significant aim research. Methods: A consecutive approach based statistical experimental designs was applied improve through...

Saprolegniasis which is caused mainly by Saprolegnia sp. the main cause of winter mass kills in northern freshwater fish farms Egypt. Various treatment protocols were used to control it, but they are not favoured due toxicity and cost treatment; thus, search for safer economic alternative ongoing. In this study, 50/59 plant/plant parts methanolic extracts screened possible anti-fungal activity against a locally isolated parasitica strain agar plate dilution method. The screening revealed...

Abstract Background The use of microbial biomasses, such as fungal biomass, to catalyze the transesterification triglycerides (TG) for biodiesel production provides a sustainable, economical alternative while still having main advantages expensive immobilized enzymes. Results Biomasses Aspergillus flavus and Rhizopus stolonifera were used TG in waste frying oil (WFO). Isopropanol an acyl-acceptor reduced catalytic capability methanol was most potent with final fatty acid methyl ester (FAME)...

Background and objective Lipases are characterized to catalyze precise chemical transformation. That is they have widespread applications in detergents, cosmetics, food, organics synthesis, pharmaceutical industries. In recent years, the study development of lipase production solid state fermentation, also using sequential statistical strategy as optimization for some vital factors gaining more attention. This may be attributed several advantages techniques such simplicity fermentation...

Xylan is a principal structural component in plant cell walls and could interfere many industries biological activities. Biosynthesis of the xylan-degrading enzyme xylanase by fungal isolates was investigated, using agricultural wastes as substrates for production. Aspergillus fumigatus shown to be superior isolate produce xylanase, wheat bran proved most appropriate substrate production activity. Media composition growth conditions were optimized Plackett-Burman multifactorial mixture...

Background: In the past years, saprophytic bacteria and candida have been emerging as potential human pathogens causing life-threatening infections in patients with cancer. This study was designed to determine species, bloodstream cancer assessment of their susceptibility antibiotics biosynthesised silver nanoparticles. Materials Methods: Ninety-seven microbial recovered from blood samples were included present study. The isolates collected a duration period extending December 2016 July 2018...

Aspergillus nidulans (accession number MT355567) was selected as a most potent isolated, dried and chemically pretreated biomass investigated. Various biosorption parameters pH, initial concentration of U, biosorbent dose, particles size, temperature contact time were studied. Maximum uranium removal efficiency 97% 98.5% for biomass, respectively. The optimum pH U(VI) 4.0 with U 350 mg/L, 0.4 g, size 0.250 mm within 16 14 min respectively, at 25°C. Uranium closely related to...

Abstract Standardization of the cultivation conditions is crucial for producing fungal biomass with effective whole-cell catalytic activity. Aspergillus flavus mutant was optimized transesterification and hydrolysis waste frying oil (WFO) as a substrate. The glucose-polypeptone medium selected among other culture media primary optimization submerged cultivation. Biomass lipolytic activities growth A. were higher under shaking compared to static conditions, 200 rpm optimum. Olive superior...