The sour cassava starch (and also ararut starch) is unique in the ability to produce a biscuit (made of water, shortening and salt) that oven springs during baking as if it has in its formulation a leavening agent. The final product has an alveolar structure, it is crocant and low density. The fators that control its growth are unknown. In this paper were investigated the effects of the water, pregelatinized sour cassava starch, amylose and amylopectin contents on the biscuit growth. It has been showed that the time of formation of the biscuit structure depends on the water formulation content. The complete gelatinization of this starch seems to destroy its unique property to grow with heat as if it had a leavening agent in its formulation. Biscuits made of amylose and amylopectin instead of sour starch produced biscuits that don’t oven rise.
Sour cassava starch biscuit; sour cassava starch
