The invention discloses medicinal and edible
mulberry leaf drink substitute tea and a
processing method thereof, and belongs to the technical field of
mulberry leaf tea drink production. The
processing method comprises the following steps: picking mulberry leaves, rinsing with
ice water, carrying out synergistic fixation with ginger juice and steam, rolling and forming, dipping with a mulberry
polysaccharide-iron compound solution in combination with a low-frequency
electromagnetic field, and then treating with a staged
oxygen-controlled
fermentation process. Wherein the ginger juice steam
enzyme deactivation
system accelerates
enzyme deactivation through the synergistic effect of ginger volatile oil and high-temperature steam under the conditions that the temperature is 105-110 DEG C and the pressure is 0.10-0.25 MPa; the mulberry
polysaccharide-iron compound permeates into
mulberry leaf cells under the assistance of a low-frequency
electromagnetic field, and synthesis of gamma-
aminobutyric acid is promoted; in the primary
fermentation stage, eurotium cristatum is utilized to carry out anaerobic
metabolism under mediation of Fe < 3 + >, and in the secondary
fermentation, a
metabolic pathway is optimized through combination of
lactobacillus plantarum and
bacillus subtilis. The prepared tea substitute is rich in GABA (gamma-
aminobutyric acid),
flavonoid substances and
alkaloid substance DNJ, has the physiological effects of reducing
blood sugar and blood fat, and can relieve
pancreas burden.