2.2.1 Exudate Gums
It has been observed that a large number of plants which grow in a semiarid environment generate exudate gums in sufficient amount when either an incision is made on their bark or they get damaged that invariably helps to seal off the cracked wound thereby preventing dehyration of the plant.
A plethora of exudate gums find their abundant applications as a pharmaceutical aid, namely: Acacia, Tragacanth and Karaya Gum.
