Fig. 2

UV–visible scans from batch cultures of Rhodotorula laryngis, Candida sake, and Cystofilobasidium infirmominiatum containing 100 mg L^–1 of Reactive Black 5 at different incubation times. The three spectra illustrate the decrease in absorbance of the dye obtained from the starting abiotic control (situation without yeast, black line, top record) to that occurring after incubation with the yeast (dark-gray line, middle record), compared to the spectrum of the biotic control (situation in the absence of dye, light-gray line, bottom record)