Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Microbial Transformation Rates of Azo and Triphenylmethane Dyes.
Author Michaels, G. B. ; Lewis, D. L. ;
CORP Author Environmental Research Lab., Athens, GA. ;Gainesville Junior Coll., GA. Dept. of Biology.
Year Published 1986
Report Number EPA/600/J-86/042;
Stock Number PB86-196367
Additional Subjects Dyes ; Degradation ; Microorganisms ; Reprints ; Triphenylmethane dyes ; Color index acid orange 6 ; Color index basic violet 1 ; Color index basic violet 3 ; Biodeterioration
Library Call Number Additional Info Location Last
NTIS  PB86-196367 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 8p
Using field-collected and laboratory cultures, bacterial transformation rates for one azo and two triphenylmethane dyes were studied as a means of assessing the potential degradation of these compounds in aquatic environments. Transformation was measured as loss of color by spectrophotometry, and first- and second-order transformation rate coefficients were determined. Second-order coefficients (kb) were based on total colony-forming units (CFU) of bacteria in batch cultures. Percentages of total bacteria that transformed the dyes were determined by isolating bacterial colonies from field-collected samples and testing the isolates for the capacity to transform the dyes in dilute nutrient medium.