Found this on an anti-gmo site somewhere and hope it helps:
More than 50 percent of papaya from Hawaii is genetically modified to resist a virus. Most U.S. papayas come from Brazil, Mexico, or the Caribbean, however, where there are no Genetically-Modified
varieties. According to GEO-PIE, your chances of encountering a Genetically-Modified
papaya "are highest in Hawaii or the continental west coast." Some zucchini and yellow crookneck squash are also Genetically-Modified
but they are not popular with farmers.
I found this organic papaya powder: Live Superfoods Green Papaya Powder
Mature green papaya contains papain chymonpapain, two powerful enzymes that break down proteins and aid digestion. 16 ounce bag