Thirty-six micro-organisms, represented by fungi and yeasts strains, were isolated from heavy metal-contaminated sites in Tangier, Morocco. Filamentous belonged to the genera Aspergillus, Penicillium, Fusarium, Alternaria andGeotrichum. They screened for their resistance metals. The results revealed that majority of isolates resistant Pb, Cr, Cu Zn, whereas Cd, only fungus Penicillium sp. was able to grow. The level depended on isolate tested, as well site its isolation. Minimum inhibitory...

Lead biosorption by Klebsiella sp. 3S1 isolated from a wastewater treatment plant was investigated through Rotatable Central Composite Experimental Design. The optimisation study indicated the following optimal values of operating variables: 0.4 g/L biosorbent dosage, pH 5, and 34°C. According to results kinetic studies, process can be described two-step process, one rapid, almost instantaneous, slower, both contributing significantly overall biosorption; model that best fits experimental...

The olive orchard cultivation in Mediterranean countries results huge amounts of lignocellulosic biomass residues. One the main residues are leaves. Olive leaves contain high concentrations bioactive antioxidant compounds like oleuropein and luteolin-7-glucoside. production biactive from requires treatments capable breaking structure. Current research focuses on use inexpensive, quick, not harmful to environment treatments, searching a more simplified large-scale operation approach....

Refined olive oils (ROOs) are commonly enriched with synthetic antioxidants. Antioxidant extracts obtained from natural products can be used to improve the stability of these oils. In this study, ROOs were through addition phenolic leaves (OLs) and exhausted pomace (EOP). replacing antioxidants ones, results in valorization olive-derived biomasses. The most suitable method for mixing enriching refined was probe-type ultrasonication using lecithin as emulsifier. Thereafter, change content...

The capacity of the ubiquitous filamentous fungus Penicillium sp. 8L2 to remove Zn(II) ions pre-sent in synthetic solutions was studied and optimal operating conditions were obtained based on a response surface methodology (RSM). contact time optimized by kinetic tests. Equilibrium tests then carried out, which allowed biosorption isotherms be for several mathematical models. At same time, fungal cell ex-tract transform metal into ZnO nanoparticles with biocidal evaluated. Its inhibitory...

In this study, the capacity of ubiquitous filamentous fungus Penicillium sp. 8L2 to remove Zn(II) ions present in synthetic solutions was studied and optimal operating conditions were obtained based on a response surface methodology (RSM). The contact time optimized through kinetic tests. Equilibrium tests then carried out, which allowed biosorption isotherms be for several mathematical models. At same time, fungal cell extract transform metal into ZnO nanoparticles with biocidal evaluated....

Wild olive trees have important potential, but, to date, the oil from wild olives has not been studied significantly, especially an analytical point of view. In Spain, tree is called “Acebuche” and its fruit “Acebuchina”. The objective this work optimize production process Acebuchina cultivar characterize oil, which could be marketed as healthy functional food. A Box–Behnken experimental design with five central points was used, along Response Surface Methodology obtain a mathematical model....

Malaxation of the paste is most important step for virgin olive oil extraction because it affects both yield and quality. In this work influence temperature mixing time on yield, quality parameters composition in photosynthetic pigments total polyphenols assessed by using Response Surface Methodology. Seven Picual-variety samples from two consecutive seasons, with different maturity index, were used. Results show that malaxation exert a positive optimal values ranging 20.1 to 32.2 °C 73.3 90...

The extraction of bioactive compounds in a biorefinery context could be way to valorize agri-food byproducts, but there is remaining part that also requires attention. Therefore, this work the integrated phenolic compounds, including oleuropein, and proteins from olive mill leaves was addressed following three schemes, use ultrasound. This affected total content (4475.5-6166.9 mg gallic acid equivalents/100 g), oleuropein (675.3-1790.0 mg/100 antioxidant activity (18,234.3-25,459.0 µmol...

The efficiency of Rhodotorula mucilaginosa 1S1 as an Ag(I) biosorbent and at the same time its ability to biosynthesize recoverable silver nanoparticles is evaluated. Kinetic, equilibrium thermodynamic tests are carried out for 19 °C, 27 °C 37 from which process adjusted a pseudo second-order kinetics Freundlich model, while optimal operational conditions determined °C. study shows positive values enthalpy (ΔH: 133.23 kJ/mol) entropy (ΔS: 0.4976 kJ/(mol K)), Gibbs free energy (ΔG) value...

Copper contamination of natural waters is a global problem that affects ecosystems and public health, yet this metal an essential micronutrient has important applications. The efficacy Staphylococcus epidermidis CECT 4183 as Cu(II) biosorbent in synthetic solutions its potential ability to synthesize CuO nanoparticles (CuO-NPs) from cellular extract was investigated. In addition, the biocidal evaluated against five microorganisms. Using response surface methodology, optimal operating...