In this study, effects of solid concentration, temperature, and initial Fe2+ concentration on bioleaching of sulfide mineral (chalcopyrite) obtained from Sarcheshmeh Copper Mine in the region of Kerman located in the south of Iran were investigated. A mesophilic iron oxidizing bacterium, Acidithiobacillus ferrooxidans has been isolated from a typical chalcopyrite copper concentra...

AIM To produce high laccase activities from the white-rot fungus Trametes hirsuta in an in-house air-lift bioreactor (ALB). METHODS AND RESULTS Trametes hirsuta was grown in a 6-l ALB. A fed-batch strategy with glycerol as an addition resulted in maximum laccase activity of 19,400 U l(-1), which was the highest reported from the fungus. CONCLUSION The ALB configuration with additional glyce...

Hairy roots are genetically transformed roots and highly recommended sources for various secondary metabolites products. Artimisinin is one of them and frequently utilized as pharmaceutical drug for malaria impairment. Hairy roots are fragile tissue and very much sensitive in regarding to culture inside the bioreactor. Designing of bioreactor and optimising the acquired physical and chemical pa...

Abstract Biogas upgrading from anaerobic digestion of waste frying oils (WFO) was accessed in this study. For that, two bioreactors (Rb-biogas-lift bioreactor with gas and liquid recirculation, Rc-control reactor recirculation) were fed three times per week, a mixture WFO, glycerol volatile fatty acids (VFA). Rb produced 1.4 more biogas higher methane content (79%) than Rc (67%). Higher relativ...

Plant tissue culture technology is a technique for aseptic of plant tissues under artificial conditions. It can be used as means to directly mass-produce bioactive compounds from different systems such adventitious roots (ARs), hairy root, callus, somatic embryogenesis medicinal plants. ARs cultures show high root proliferation, biomass production and have the potential synthesize specific comp...