Improved Candida methylica formate dehydrogenase fermentation through statistical optimization of low-cost culture media.

NAD⁺-dependent formate dehydrogenase (FDH, EC 1.2.1.

Accumulation of polyhydroxyalkanoates by Microlunatus phosphovorus under various growth conditions.

Microlunatus phosphovorus is an activated-sludge bacterium with high levels of phosphorus-accumulating activity and phosphate uptake and release activities. Thus, it is an interesting model organism to study biological phosphorus removal. However, there are no studies demonstrating the polyhydroxyalkanoate (PHA) storage capability of M.

Conventional morphological and functional evaluation of the microbial populations in a sequencing batch reactor performing EBPR.

To help confirm and interpret the Enhanced Biological Phosphorus Removal (EBPR) performance of the microbial populations in a laboratory-scale activated sludge (AS) system, conventional microscopic examinations were carried out. A lab-scale sequencing batch reactor (SBR), named ARC, was fed with acetate, as the sole carbon source, and operated for EBPR. Daily monitoring and cyclic behavior evaluation studies indicated that the system always worked for EBPR in the long run, with efficiencies depending on the influent characteristics and operational stability.