Bioprospecting of wild type ethanologenic yeast for ethanol fuel production from wastewater-grown microalgae.

Background: Wild-type yeasts have been successfully used to obtain food products, yet their full potential as fermenting microorganisms for large-scale ethanol fuel production has to be determined. In this study, wild-type ethanologenic yeasts isolated from a secondary effluent were assessed for their capability to ferment saccharified microalgae sugars.

Results: Yeast species in wastewater were identified sequencing the Internal Transcribed Spacers 1 and 2 regions of the ribosomal cluster.

Fertility Deterioration in a Remediated Petroleum-Contaminated Soil.

A soil that had been remediated by soil washing and chemical oxidation was evaluated, comparing it to an uncontaminated control soil ~30 m away. Profile descriptions were made of both soils over a 0-1 m depth, and samples were analyzed from each soil horizon. Samples were also analyzed from surface soil (0-30 cm).