Background
Petrak was born on November 10, 1946 in Karlovac, Croatia; the son of Tomislav and Jelena Petrak.
Petrak was born on November 10, 1946 in Karlovac, Croatia; the son of Tomislav and Jelena Petrak.
Petrak received a Master of Science degree in 1974 and a Doctor of Philosophy degree in 1987 from the University of Zagreb.
Petrak began his career as a junior assistant at the Institute of Physiology and Pathology of Animal Production (nowadays Croatian Veterinary Institute) in 1972. Two years later he took a position of an assistant at the faculty of veterinary medicine at the University of Zagreb. In 1984, he was appointed an assistant professor at the faculty of food technology and biotechnology at the same university. Since 2001 Tomislav has been a professor at the same faculty of the University of Zagreb.
Petrak is a member of the Society of Food Technologists, Biotechnologists and Nutritionists, Croatian Microbiologists Society and Words' Poultry Association.
On July 16, 1983 Tomislav Petrak married Karmen Botka.