The invention relates to a production method of
fresh fish soybean sauce and in particular relates to a method for producing
fresh fish soybean sauce from
fresh fish and soybeans. The production method comprises the steps of cleaning a
fish head, a fishtail, fish scales and fishbone of the fresh fish, and immersing the
fish head, the fishtail, the fish scales and the fishbone of the fresh fish in an
organic acid or alkaline salt type solution to obtain a
raw fish material; then performing
steam sterilization on the
raw fish material to obtain a cooked fish material,
mincing the cooked fish material to enable the cooked fish material to pass through holes of a
sieve with 80-100 meshes, adding 100-250 parts by weight of water, 3-6 parts by weight of NaCl, 3-10 parts by weight of a
plant protein raw material and 0.1-0.3 part by weight of
protease into every 100 parts by weight of the cooked fish material for liquidation decomposing, detecting the degree of
hydrolysis (DH) of the
protein by a formol
titration method, and when a DH value is 65-80 percent, performing
filtration to obtain decomposing liquid containing polypeptide and
amino acid; finally, mixing and fermenting soybean
yeast, the decomposing liquid and
saline water, and adding salt-resistant
lactic acid bacteria and salt-resistant
yeast during
fermentation to obtain the fresh fish soybean sauce. The fresh fish soybean sauce obtained by the method disclosed by the invention does not have fishy smell and
bitter taste, tastes delicious, has a high
nutrition value and has a health-protection function.