It was observed that mushroom mycelium powder absorbed
more water than did wheat flour. More water was added for the
hydration of mycelium powder so that the added water in the formula
would not influence the hydration of wheat flour and thereby,
not affect the final volume of the bread. The observation is
consistent with the finding of Lin et al. (2008) and Tseng et al.
(2010), in which fruiting body powder was used. Therefore, an extra
5% amount of water was added for 5% mycelium-supplemented
bread. Specific volumes (volume/weight) of mycelium-supplemented
bread were 5.56–6.08 cm3/g, lower than that of white
bread (Table 1). It seems that the addition of mycelia resulted in
mycelium-supplemented bread with smaller size, as shown in
Fig. 1. The specific volume of standard bread is in the range of
3.5–6 cm3/g (CGPRDI, 1983). However, all these mycelium supplemented
breads met the passing level of specific volumes.