hydration properties of corn and potato starch in the presence of diverse hydrocolloid added different level (1,2,3 and 4) are show in table 1. swelling values were comprised within the range 7.5-21 ml/g. hydrocolloid affected in different extent the starch swelling and the effect was dependent on the starch origin and the hydrocolloid level. guar gum and xanthan gum showed the highest effect of both starch, inducing a significant increase of this parameter, although in the case of potato starch guar gum levels higher than 2% were required.