ANTIMICROBIAL ACTIVITY
Soy sauce has been expected to possess the ability to inhibit
the deterioration of food and has been used to preserve
and season raw fish and vegetables. The effects of soy sauce
on food-borne and other common pathogens were studied.
Akiba et al. (11) reported that soy sauce with p-hydroxybutyl
benzoate as a preservative killed pathogens such as
Escherichia coli, Shigella flexneri, Salmonella typhi, Salmonella
paratyphi A, Salmonella enteritidis and Vibrio
cholera within 6 h (Table 2). When the soy sauce did not
contain preservatives, it took 48 h to kill them. Shimizu et al