Two strains of yeast dominated the sample: Debaryomyces occidentalis (P1)
and Trichosporon ovoides (P19), Strain P19 had the highest TOC-decreasing
activity and was immobilized onto chitosan beads. The immobilized yeast
reduced the TOC from 1.2 x 10 3 to 3.0 x 10 2 mg of C/L per day in the fi sh
cannery wastewater (Urano et al., 2002).
Fig. 8.2 Drainage treatment system in a fi sh food processing factory. Organisms used as
bioremediators (Urano et al., 2002).