One of my colleagues from New Zealand, when working in Tanzania on a food processing project for SIDA, went shopping for citrus peels that she wanted to use to make into a delightful candied peel confection (oranges, lemons, and/or limes). She approached street food vendors in Arusha who was making fresh juices, and requested permission to take the "trash" for her training program. Once the local women had learned to make the candied peel, and were packaging it in brightly colored containers with nice labels and selling it successfully in the markets, the citrus juice makers realized that they had a valuable by-product and began selling the peels.
Dr. Lisa Kitinoja
The Postharvest Education Foundation
Lisa Kitinoja