[A study of the cytochrome composition of microorganisms by their absorption spectra and first derivative spectra]

The cytochrome composition of Candida mycoderma and Torulopsis candida was studied by means of absorption spectra and spectra of the first derivative which were recorded at the temperature of liquid nitrogen and room temperature. The spectrum of the first derivative provided more information concerning the cytochrome composition than absorption spectra; data obtained with the aid of this spectrum at room temperature corresponded to those provided by means of absorption spectra at low temperatures.