The invention relates to the field of health care products, in particular to a preparation method of a barley and
black tea health-care product. The preparation method specially comprises the following steps of ultrasonic treatment, active substance extraction,
buffer solution adding and syrup preparation. The health-care product is prepared from, by
mass, 5-20 parts of folium cortex eucommiae, 3-10 parts of broadleaf holly leaf, 2-5 parts of honey, 5-10 parts of
oldenlandia diffusa, 5-15 parts of
salvia miltiorrhiza, 2-5 parts of
honeysuckle flowers, 2-10 parts of black bean sprouts, 20-40 parts of saccharose, 0.2-0.35 part of
succinic acid, 1.5-3 parts of
sodium succinate and 0.1-0.3 part of
ferrous sulfate. A
buffer solution is formed in syrup by adding
succinic acid and
potassium succinate, a pH value of a buffer range of the
buffer solution is 5.5-7, no precipitate is produced in the range, and the existing buffer solution does not affect the medical effects of active substances such as lignans,
lignin, phenylpropanoids, eucommoil,
ursolic acid,
polyphenol and flavone in a product. In addition, the health-care product also has anti-
osteoporosis and qi and nerve calming effects.