Does a Kiwifruit Turn Brown After Being Sliced?

Yes, a kiwifruit turns brown after being sliced. This is because the kiwifruit contains an enzyme called polyphenol oxidase, which is activated when the fruit is cut or damaged. This enzyme reacts with the oxygen in the air to produce a brown pigment called melanin. The browning process can be slowed down by storing the kiwifruit in a cool, dark place.