The invention discloses
cistanche enzyme and a preparation method thereof, and belongs to the technical field of food
fermentation. The problems that in existing
cistanche enzyme preparation, active ingredients are seriously lost,
flora metabolism is unbalanced, the quality is unstable, and the
flavor is poor are solved. A specific
raw material formula and a specific preparation process are adopted; the raw materials comprise 30-50 parts of
herba cistanche, 8-20 parts of an
antioxidant protective agent consisting of at least two of fructus lycii and the like, and 10-25 parts of a
flora adaptive slow-release
carbon source consisting of at least two of red dates and the like, and are matched with a compound
fermentation strain of
lactobacillus plantarum,
saccharomyces cerevisiae and
acetic acid bacteria; the preparation process comprises the steps of segmented
temperature control and
dark fermentation, accurate pH adjustment, standard aging and low-temperature sterilization and sterile filling. The total content of
phenylethanoid glycoside components is larger than or equal to 0.5 mg / mL, the
loss rate is smaller than or equal to 10%, the activity of
superoxide dismutase is larger than or equal to 100 U / mL, the
viable count of
lactic acid bacteria is larger than or equal to 1 * 10 CFU / mL, core functional components of
cistanche deserticola and the stability of a
fermentation system are reserved, the
flavor and storage safety of products are improved, and high-value utilization of
cistanche deserticola resources is achieved.