TY JOUR TI THE INFLUENCE OF HEAT TREATMENT ON SAFETY OF VEGETABLE PRODUCTION KW heat treatment KW nitrates KW contents KW vegetable cultures KW cabbage KW beet KW laboratory experiment JO Bulletin of KSAU AU Demidenko, G.A. AU Chepelev, N.I. AU Tipsina, N.N. AU Strupan, E.A. AU Shuranov, V.V. PY 2015 IS PB Krasnoyarsk State Agrarian University