Abstract The selective oxidative conversion of seven representative fully characterized biomasses recovered as secondary feedstocks from the agroindustry is reported. reaction system, known “OxFA process,” involves a homogeneous polyoxometalate catalyst (H 8 PV 5 Mo 7 O 40 ), gaseous oxygen, p-toluene sulfonic acid, and water solvent. It took place at 20 bar 90 °C transformed agro-industrial wa...