An advanced enzyme system allows propionic acid bacteria to utilize
209 a number of carbon sources (saccharides, organic acids). It creates the
210 possibility of the disposal of waste materials containing essential
211 nutrients. Moreover, it gives the opportunity for simultaneous
212 acquisition of valuable metabolites. According to Bergey, P. freudenreichii
213 T82 successfully utilizes, among others, glucose and fructose (positive reaction in 90 up to 100% strains), certain strains of this species also 214 have the ability to ferment saccharose (positive reaction in 10 up to 40% 215 strains) [11].