TY JOUR TI OPTIMIZATION OF EXPERIMENTAL PLANNING IN PROCESSING PLANT RAW MATERIALS KW plant raw materials KW experiment planning KW optimization criteria KW pectin substances KW optimal conditions KW least squares method. JO Bulletin of KSAU AU Sobol, I.. AU Kazakevich, A.V. AU Donchenko, L.V. AU Griguleckiy, V.G. PY 2021 IS 0 PB Krasnoyarsk State Agrarian University