TY JOUR TI BIOLOGICALLY ACTIVE VALUE CHANGE OF SECONDARY RAW MATERIALS IN MICROWAVE HEATING PROCESS KW beet pomace KW microwave heating KW bi-ochemical composition change KW solids KW antioxidants KW pectins KW powder KW paste KW healthy diet JO Bulletin of KSAU AU Perfilova, O.V. PY 2018 IS PB Krasnoyarsk State Agrarian University