Bioremediation of Fish Cannery Wastewater with Yeasts Isolated from a Drainage Canal

Abstract

Several yeasts were isolated from a drainage canal in a Japanese fish food processing factory. They were characterized by the decomposition of organic polymers such as proteins and reducing sugars, their growth in the wastewater, the decrease in total organic carbon (TOC), and taxonomy. Three strains of yeast dominated the sample: Debaryomyces occidentalis (P1), Trichosporon ovoides (P19), and a strain that could not be identified (S27). Strain P19 had the highest TOC-decreasing activity and was immobilized onto chitosan beads. The immobilized yeasts reduced the TOC from 1.2 x 10(3) to 3.0 x 10(2) mg of C/L per day in the fish cannery wastewater.

Isolation and characterisation ofSaccharomyces cerevisiae from hydrospheres

“…We showed previously that yeast-like microorganisms exist in hydrospheres (Ueno et al, , 2005Urano et al, 1998Urano et al, , 2001Urano et al, , 2002aUrano et al, , 2002b. Since yeasts collected from hydrospheres are likely to have unique physiological properties or growth patterns, we have isolated yeasts from hydrospheric environments and compared their biology with that of yeasts from non-aqueous environments.…”

Biomass production from glutamate fermentation wastewater by the co-culture of Candida halophila and Rhodotorula glutinis

“…Recently, more and more yeast species are isolated from nature and proven superior to conventional protein producer in laboratory or field studies (Nigam, 2000;Arnold et al, 2000;Urano et al, 2002;Yang et al, 2003), which offers more choices for the microbial protein process. For example, a yeast species, C. langeronii, is isolated under selective conditions as an alternative microorganism of C. utilis because of the inability of the latter to utilize L L-arabinose at temperatures above 42°C in the absence of vitamins (Nigam, 2000).…”