TY JOUR TI Gas Chromatography in Butter Authentication KW adulteration KW sterol composition KW fatty acid composition KW milk fat KW milk fat substitutes KW beef fat KW spread JO Cheese- and buttermaking AU Afanasieva, A.A. AU Danilova, E.S. AU Pirogova, E.N. AU Pavlova, T.A. PY 2025 IS 0 PB Kemerovo State University