Density ranged from 0.37 to 0.50 g/cm3 (Fig. 1), the lowest values of
density in the first cycle were found close to 200 W and 120 s
however, since the behavior is quadratic, power below 200 Wand
time below 120 s increase density even that power above 300 W
and time above 180 s. For the second cycle, lowest density was
obtained in a range of 43e73 s and power below 775 W or above
925 W. As Fig. 1 show, power in the first and the second baking
cycle, presented the highest influence the pound cake density.
According with Vadivambal and Jayas (2007), the structure of
a food may be characterized by its bulk density, which is a structural
property for quality characterization of baked products. In this
study lower density is related with larger volume in microwaved
pound cakes which could represent a better characteristic
compared with the product baked conventionally. Larger volume in
microwaved product was created with the elastic structure generated
during the first microwave cycle which retains the gas liberated during the second cycle. As Fig. 1 show, power in the first
and the second baking cycle, presented the highest influence the
pound cake density.