The invention relates to methods of prophylactic and/or therapeutic uses of a puree preparation from Carica papaya fruit, said puree prepared by a method comprising cooking the fruit for at least 30 minutes at normal pressure, optionally in an aqueous solution which is at least twice the volume of the fruit; cooling the cooked fruit over a period of time of at least 30 minutes in an oxygen-containing atmosphere; and homogenizing the cooled fruit to obtain a puree.