(a.k.a. Gum Arabic) A natural gum produced by the processing of the sap tapped from two species of Acacia trees (Senegalia Acacia senegal and Vachellia Acacia seyal), which are found primarily in Africa in a wide band between the southern border of the Sahara Desert and the Sudan plains to the north, an area that includes present day Algeria, Burkina Faso, Cameroons, Chad, Eritrea, Gambia is due a, Mali, Mauritania, Niger, Nigeria, Sénégal and Sudan. Acacia’s adhesive properties are due to it being composed of glycoprotiens and polysaccharides, both of which are generally regarded as being safe for human consumption. Acacia Gum’s desirable adhesiveness properties, and its safety factor if used by humans, make it an ideal gum application material for postage stamps.

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