The deodorization effect of fish sauce with external koji fermentation was studied according to sensory evaluation. The koji was made from chub offal with the addition office bran and Allium chinense peel through fermentation. Compare to the treatment of common koji of the deodorization effect of fish sauce, the result shows that when the addition ofAllium chinense peel is 75% of wheat weight, the effect on the protein enzyme is the least, and the fish sauce has bet...