Polyphenol oxidase (PPO) enzyme is of great commercial interest because it is related to the browning of fruits. In this practical spanning two weeks, we will use classical biochemical techniques to extract a PPO enzyme from a banana or apple, perform an assay for PPO activity and protein content, and assess data to discuss reproducibility in science.
The SEB invites you to register for the Sixth International Symposium on the Nitrogen Nutrition of Plants - Nitrogen 2026, to be held in Gatersleben, Germany, from August 23–27, 2026.
Protocol for experiment for lecturers
