The feasibility of anaerobic fermentation of cheese whey using Kluyveromyces marxianus DSMZ 5422 biofilm on particle support was studied. Firstly the effect of the concentration of cheese whey powder solution and of the amount of inoculum used was tested. Results indicate that both these parameters have limited effect on substrate conversion and the concentration of the produced ethanol. Experiments of cheese whey fermentation in presence of natural supports, namely olive pits and walnut shells, was carried out to observe the holding capacity of K. marxianus on these supports. Results confirm the cell adhesion on the surface of olive pits and walnut shells and the suitability of this system for the development of biofilm technology fermentation.
Kluyveromyces marxianus biofilm in cheese whey fermentation for bioethanol production
JOSHI, YOGESH ANANT;SENATORE, BEATRICE;POLETTO, Massimo
2011-01-01
Abstract
The feasibility of anaerobic fermentation of cheese whey using Kluyveromyces marxianus DSMZ 5422 biofilm on particle support was studied. Firstly the effect of the concentration of cheese whey powder solution and of the amount of inoculum used was tested. Results indicate that both these parameters have limited effect on substrate conversion and the concentration of the produced ethanol. Experiments of cheese whey fermentation in presence of natural supports, namely olive pits and walnut shells, was carried out to observe the holding capacity of K. marxianus on these supports. Results confirm the cell adhesion on the surface of olive pits and walnut shells and the suitability of this system for the development of biofilm technology fermentation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
