Utilization of hydrothermally pretreated wheat straw for production of bioethanol and carotene-enriched biomass

► Production of valuable products (ethanol, carotenoids, ergosterol) has been studied. ► Plant wastes (wheat straw hydrolysate and filter cake) were used as carbon sources. ► Ethanol production efficiency of 65-66% was obtained in S. cerevisiae cells. ► Red yeast Sporobolomyces roseus exhibited the highest pigment and ergosterol yield. ► Potential production of enriched red yeast biomass for feed industry was studied.