TY JOUR TI USING NATURAL DYE IN THE TECHNOLOGY OF BAKING FOR HAMBURGERS KW hamburger buns KW tomato paste KW natural dye KW public catering KW fast food JO Bulletin of KSAU AU Kotsur, V.A. AU Borisova, A.V. PY 2019 IS PB Krasnoyarsk State Agrarian University