ABSTRACTPapaya is one of the climacteric fruit that has a short shelf life. It has high potential as a source of vitamins and minerals. This research was aimed at studying the maturity criteria of postharvest ripeness of Callina papaya fruit of several picking ages and to determine the best picking ages for postharvest handling in order to extend the shelf life. Experiment was conducted in the Research Center for Tropical Horticulture, Bogor Agricultural University (PKHT, IPB) Papaya Farm Tajur, Bogor and postharvest ripening test was conducted at Postharvest Laboratory, Department of Agronomy and Horticulture, Bogor Agricultural University in February to July 2014. Experiment consisted of 4 treatments: 115, 120, 125 and 130 days after anth...