The invention discloses a
ginseng peptide liquid composition with a sleep improving function and a preparation method of the
ginseng peptide liquid composition, and belongs to the technical field of health-care food. The composition is prepared from the following components in parts by weight: 15 to 20 parts of water boiling extracting solution of Chinese date, wheat and liquorice root, 0.01 to 0.05 part of
ginseng nano
peptide, 0.01 to 0.05 part of poria cocos peptide, 0.01 to 0.05 part of walnut peptide, 0.35 to 0.5 part of spina
date seed extract and 0.5 to 1 part of passion flower nano
powder. The preparation method integrates advanced technologies of dynamic countercurrent extraction, membrane separation,
enzyme membrane bioreactor, nanocrystallization, non-thermal sterilization and the like, and specifically comprises the following steps: dynamic countercurrent extraction of a basic solution,
microfiltration-
ultrafiltration-
nanofiltration membrane method combined refining, synergistic enzymolysis of an
enzyme membrane reactor, nanocrystallization and compounding of key components, purification, purification and purification. And finally, sterilizing by ultrahigh pressure or
ultraviolet-pulsed light, and carrying out sterile filling. The product is high in
bioavailability, good in taste, good in stability, capable of remarkably shortening the sleep latency period and prolonging the
sleep time, high in safety and free of traditional chemical
drug dependence side effects, and an ideal
medicine and food homology solution is provided for solving sleep disorders.