In order to study the effect of reformulation and yeast inoculation on the perception of sausage aroma an aroma profile analysis
was carried out (Fig. 2). The effect of yeast inoculation was
compared against the control sausage for each reformulation; RF
(Fig. 2A), RS (Fig. 2B) and RF þ RS (Fig. 2C). Fat reduction did not
affect the aroma perception but the inoculation of D. hansenii
significantly increased the perception of fruity and cured aromas
(Fig. 2A). Moreover, salt reduction did not affect the aroma
perception but the inoculation of D. hansenii significantly increased
the perception of stable and cured aromas and although rancid
aroma was increased it was not significant (Fig. 2B). Finally, when
both reductions were done together a higher intensity of cured and
fruity aroma was perceived in inoculated and uninoculated batches
than in the control sausages