Tara gum is the endosperm
of the seeds of the tara tree (Cesalpinia spinosa lin). The plant is
native to South America where it grows as tree or bush. Today, tara
is also cultivated in Morocco and East Africa.
Like guar gum and carob bean gum, tara gum is a galactomannan, comprising
approximately 25% of galactose (for comparison, guar gum E412
contains about 34%, carob bean gum about 20% of galactose)
Tara gum is partly soluble in cold water. The solution is more viscous
than a guar gum or carob bean gum solution of the same concentration.
Like carob bean gum, it has a gelling effect together with xanthan and
increases the gelling properties of agar (see E406)
and carrageenan (see E407)