Since Yarrowia lipolytica, an oily yeast, contains many valuable products as biomass, to increase its widespread use, it is very important develop a sustainable production model. In this study, the of high acid hydrolysate from sawdust which produced in amounts our environment, and effect these on growth efficiency lipolytica were investigated. A preliminary statistical analysis was carried out...

The potential of two zygomycetes fungi, Mucor indicus and Rhizopus oryzae, in assimilating citrus waste free sugars (CWFS) and producing fungal chitosan, oil, and protein as well as ethanol was investigated. Extraction of free sugars from citrus waste can reduce its environmental impact by decreasing the possibility of wild microorganisms growth and formation of bad odors, a typical problem fac...

1 The present review roughly covers the publications that have appeared since Prof. K. Schügerl delivered a keynote address at the 4th GLS International Conference in 1997 (Schügerl, 1997). It includes publications that deal with gas/liquid systems without solids, but gives an extra weight to applications of airlift bioreactors to wastewater treatment and to algal growth. Three extensive review...

The influence of solar irradiance and carbon dioxide molar fraction of injected CO(2)-air mixtures on the behavior of outdoor continuous cultures of the microalga Phaeodactylum tricornutum in tubular airlift photobioreactors was analyzed. Instantaneous solar irradiance, pH, dissolved oxygen, temperature, biomass concentration, and the mass flow rates of both the inlet and outlet oxygen and carb...

Nitrogen removal from synthetic wastewater was investigated in an airlift bioreactor (ALB), augmented with a novel heterotrophic nitrifier Pseudonocardia ammonioxydans H9T under organic carbon to nitrogen ratios (Corg/N) ranging from 0 to 12. Effect of the inoculated strain was also determined on the settling properties and the removal of chemical oxygen demand (COD). Two laboratory scale react...