The invention relates to a biological
enzyme preparation. The biological
enzyme preparation comprises, by weight, 1.2-1.5 parts of
dextranase, 2.5-8 parts of
amylase, 1-5.3 parts of
lipase, 1.8-4.5 parts of
protease, 1.5-3.8 parts of oxidase, 0.8-1.6 parts of
glutamine transaminase, 0.5-1.2 parts of
phytase, 1.5-5.0 parts of emulgator, 1.0-5.0 parts of
water retention agents and 0.5-3.5 parts of flour
gluten fortifier. By means of the biological
enzyme preparation, the dough performance can be adjusted obviously, the bread size is increased, the bread stiffness is obviously improved, and the bread softness is improved. A preparing method of the biological enzyme preparation includes the steps of weighing the above raw materials by weight to be stirred and evenly mixed, passing through an 80-mesh
sieve, further stirring and even mixing until the raw materials are completely and evenly mixed, and obtaining the biological enzyme preparation.