Integrated cascade biorefinery processes for the production of single cell oil by Lipomyces starkeyi from Arundo donax L. hydrolysates

Giant reed (Arundo donax L.) is a promising source of carbohydrates that can be converted into single cell oil (SCO) by oleaginous yeasts. Microbial conversion both hemicellulose and cellulose fractions represents the key step for increasing economic sustainability SCO production. Lipomyces starkeyi DSM 70,296 was cultivated in two xylose-rich hydrolysates, obtained microwave-assisted hydrolysis catalysed FeCl3 or Amberlyst-70, glucose-rich hydrolysates enzymatic cellulose. L. grew on undetoxified partially-detoxified achieving lipid content 30 wt% yield values range 15–24 wt%. For integrated cascade processes final production about 8 g from 100 biomass achieved. through solution effective exploitation lignocellulosic feedstock perennial grasses towards new generation biodiesel other valuable bio-based products.