As
shown by correlation coefficients of both sweet doughs (DY and
SY), the hardness increase versus freezing rate due to development
of Kougelhopf volume during proofing. As seen in the previous paragraph,
the specific volume depends on yeast activity, the Kougelhopf
samples obtained from both sweet doughs (SY and DY) frozen
in liquid nitrogen shows a low specific volume and a compact texture
probably responsible for higher hardness values (1.72 N and
1.86 N for DY and SY, respectively)