Bioethanol Production from Arundo Donax Hydrolysate Using Co-Culture of Pichia Stipitis and Saccharomyces Cerevisiae in a Stirred Tank Bioreactor

P. De Canio, I. De Bari, F. Liuzzi, A. Capece & P. Romano
An efficient production of ethanol from lignocellulosic hydrolyzates requires the use of microorganisms capable to convert both glucose and xylose sugars with high yields. One approach to achieve this target is the use of yeast co¬cultures, formed by Pichia stipitis, renamed Scheffersomyces stipitis, and Saccharomyces cerevisiae species, which are characterized by different metabolic activities. In this context, numerous parameters, such as temperature, pH and oxygen requirements are critical factors in the fermentation process and, among...