Orange from Brisbane is a real celebrity. At first he changed color in a few hours, and an unexpected transformation hit the world news.. Now scientists have found out the reason, and thousands of people also learned about this, writes ABC.

September 5 Neti Moffitt, a Brisbane resident, cut an orange and left it on the table. Slices looked and smelled good. However, at night, the fruit changed color: its flesh became bright purple.

A woman sent an orange to the forensics lab in Queensland to understand the reason for this change..

Chemists have done a lot of research like liquid chromatography and mass spectrometry.. They were looking for pesticides or other harmful substances.. However, all they found was iron..

The authors of the examination concluded that the color of the fruit changed due to the reaction of anthocyanins. These substances are naturally present in oranges and are not considered harmful to health. Usually they are responsible for the color of the fruit in red, purple and blue.

Most likely, the content of anthocyanins in the orange has increased due to the fact that he was lying in the refrigerator for a long time.. When it was cut with a fresh-cut knife, the metal particles reacted with the juice and made the fruit bright purple..

The owner of the orange remembered that her husband really was sharpening a knife before she cut the orange. She noted that she feels relieved after receiving the results of the examination..

42. tut. by.

Keywords:.