Carr and Tadini (2003) studied the influence of yeast and vegetable shortening quantities on physical and textural parameters of FPBFB stored for 28 days. The authors concluded that higher yeast content formula - tions produced bread with a higher specific volume, whereas addition of vegetable shortening produced bread with lower firmness and chewiness. Frozen storage time significantly influenced water content and specific volume of bread. Volume of FPBFB, for all studied formulations, measured 1 h after final baking, decreased after 7 days of storage, when compared with fresh one