The aim of this study was to investigate the different sensory attributes and flavour volatiles in HLFSS and LSFSS, and subsequently to identify the aroma-active compounds by aroma extract
dilution anaylsis (AEDA) and GC-O, and then to quantify the most odour-active compounds from the two types of Chinese soy sauce and study the effect of these compounds on the whole sensory perception of soy sauce. Results from this study will provide a better understanding of the key characteristic odorants in HLFSS and LSFSS to produce soy sauce with high flavour quality.