The invention discloses a preparation method of a medicinal and edible
plant composition with a synergistic hypoglycemic effect, and relates to the technical field of preparation of medicinal and edible health products. The method comprises the following steps: step a, crushing
jerusalem artichoke,
bitter gourd and Chinese waxgourd peel according to a
mass ratio of 1: (0.5-2): (0.5-1.5) until the particle size is 0.2-0.5 mm, performing cold soaking at 4-10 DEG C for 48-72 hours, and performing filtering to obtain a water-soluble component filtrate; step b, adding
cellulase (the
enzyme activity is greater than or equal to 10000 U / g) which accounts for 0.1-0.3% of the
mass of the raw materials into the residues in the step a; according to the method, multi-process combined extraction is carried out, specifically, heat-sensitive components such as
momordica saponins are reserved through cold extraction (4-10 DEG C), fat-soluble components are extracted through supercritical extraction,
cell membranes are damaged through high-temperature transduction to release cinnamyl
aldehyde, the synanthrin
decomposition rate reaches 75% through the enzymolysis technology, the
quercetin conversion rate is larger than or equal to 90%, and the
quercetin content is larger than or equal to 30% through the enzymolysis technology. According to the invention, four mechanisms, namely alpha-glycosidase inhibition,
insulin sensitization,
oxidation resistance and GLUT4 transport promotion, are used for synergistically reducing blood glucose, the blood glucose reducing effect is remarkable, the
absorption rate of fat-soluble components is increased by 2 times by the nano-
emulsion, and the in-vivo half-life period of the
balsam pear saponin is prolonged to 6.5 hours by the lipidosome.