The invention provides a preparation method of a
plant extract for providing satiety. The preparation method comprises the following steps: (1) mixing powdery
verbena citriodora, gymnema latifolium or roselle with an extraction
solvent A, and soaking; (2) performing
reflux extraction on the
mixed solution soaked in the step (1) at 40-80 DEG C; (3) carrying out
solid-liquid separation, collecting
reflux, and carrying out low-pressure concentration; and (4) adsorbing the concentrated solution through D101 macroporous adsorption resin, eluting with water for the first time, discarding the eluent, eluting with an
ethanol water solution with the
ethanol volume fraction of 40-60% for the second time, collecting the eluent, and concentrating and
drying to obtain the gymnema latifolium extract or the roselle extract. The
plant extract prepared by the preparation method of the satiety
plant extract provided by the invention can help to reduce
appetite intake by influencing the level of
appetite regulating peptides secreted by in-vivo adipose tissues or digestive tracts, promote bioactive components with the idea of health and
weight loss, and can significantly reduce the level of
total cholesterol and
LDL cholesterol.