The mixed-addenda Keggin-type molybdovanadophosphate heteropolyacids (Mo-V-P)-HPAs of series H(n+3)[PMo(12-n)VnO40] with n = 3,4 (HPA-3 and HPA-4) were found to be extremely effective acid catalysts for green hydrolytic conversion of plant (wood and agro-crop) hemicelluloses into soluble mono and oligosaccharides (XOS) within an integrated bio…[Read more]