The inhibition effect of kojic acid on five kinds of bacteria, two kinds of yeasts and two kinds of filamentous fungi was studied by means of spectrophotometric investigation, filter paper disks, and dry cell weight investigation. The experiment results showed that though kojic acid almost had no effect on the cell growth of molds, the acid exhibited a good inhibiting function on these common pollutant microorganisms in food, especially on gram negetive bacteria. The study also indicated that kojic acid had...