sauce, thereby exhibiting more complex volatiles. Differences in
aroma also affect the descriptive sensory characteristics of soy
sauce. Low-salt soy sauce shows significantly higher sour and burnt
attributes while alcoholic and caramel-like characteristics are
higher in high-salt soy sauce. These findings are in good agreement
with the results observed in this study. Consequently, although salt
reduction might affect the sensory properties of soy sauce, inoculation
with yeast starters can compensate for these changes and
ultimately allow for the production of soy sauce with discriminating
attributes. Moreover, a combination of two indigenous
yeasts improved the critical balance of complex aroma formation.
But although we did sensory determination by quantitative analysis
by comparing flavors between salt-reduced soy sauces prepared
with yeast starters and soy sauces prepared with three
different salt contents, it would be necessary to do further consumer
sensory evaluation for its industrial application. Generally,
salt-tolerant yeast Z. rouxii is used to produce the flavor of soy
sauce, through compounds such as ethanol and higher alcohols
(Feng et al., 2012). In addition, it was recently reported that the
production of volatile flavors by Z. rouxii in Thai soy sauce