アラビアガム
Gum arabic is the most important forest product of Sudan, which accounts for 80 percent of the world’s supply. It is collected from acacia trees in Darfur and Kordofan and used widely in industry for products ranging from mucilage (for postage stamps), to foam stabilizers, to excipient in medicines and dietetic foods. The Gum Arabic Company markets the product, with restraints placed on the right of any private company to independently export unprocessed gum arabic. The justification given for regulating its sale is that its quality would deteriorate and export quantities and prices would decline if sales were deregulated. Moreover, even though gum arabic requires minimal processing and packaging, the prices received by producers in 2000-2001 were only 21 percent of world market prices. Export markets for it are price sensitive, as there are synthetic substitutes and competition from Chad, Mauritania, Senegal, Mali, and Nigeria. Production in 1994-95 was 84,000 tonnes. It declined to 16,000 tonnes by 2000 but surpassed 30,000 tonnes in 2010. Export earnings were US$40 million in 2003 and about US$24 million in 2010.