Potential utilization of waste sweetpotato vines hydrolysate as a new source for single cell oils production by Trichosporon fermentans

► Waste sweetpotato vines was firstly reported as a raw material for SCOs production. ► SVH characterized as an effective nutrients supplier with low nitrogen availability. ► Extremely high lipid was yielded by Trichosporon fermentans using SVH based media. ► Co-fermentation of SVH and high-sugar content wastes was more efficient and less-cost. ► SVH has a remarkable promoting effect on cell growth and sugar uptake of the yeast.