edward jenner discovered vaccination nd louis -Pasteurizationorpasteurisationis a process of heating food, which is usually a liquid, to a specific temperature for a predefined length of time and then immediately cooling it after it is removed from the heat. It is named after microbiologistLouis Pasteurfor his work on his pasteurization process. This process slows spoilage caused bymicrobialgrowth in thefood.