A Persimmon Extract is characterized in that it is obtained after extracting persimmon stalks as a raw material, and comprises the steps of:
It mainly contains flavonoids, triterpenoids, phenolic acids and tannins. It has sedative, anticonvulsant, antiarrhythmic, antifertility and effects on gastrointestinal smooth muscle.
(1) Immerse the persimmon pedicle raw material in an organic solvent, perform ultrasonic extraction at room temperature, filter, and concentrate under reduced pressure to obtain a crude persimmon pedicle extract;
(2) The crude extract of persimmon stalks is adsorbed by an adsorption resin and eluted with an organic solvent, and dried to obtain an active enriched extract of persimmon stalks, which is a persimmon stalk extract.
The obtained persimmon pedicle crude extract and persimmon pedicle extract were subjected to experimental research on anti-aging effect and whitening effect respectively.
The organic solvent described in step 1 and step 2 refers to the organic solvent containing polar groups such as hydroxyl or carbonyl, such as but not limited to: water, formamide, dimethylformamide, triethylamine, tributylamine, acetonitrile , methyl formate, ethyl acetate, dimethyl carbonate, dimethyl sulfoxide, acetone, methyl ethyl ketone, dioxane, pyridine, tetrahydrofuran, methanol, ethanol solution, cellulose acetate, chloroform, glycerol, propylene glycol, One or more of propylene glycol, isopropanol, n-butanol and ether, among which ethanol solution is preferred.
The volume concentration of the ethanol solution is 0-95%, preferably 60%.
The solid-liquid ratio of persimmon pedicle raw material and organic solvent is 1g:5-20mL in step 1, is preferably 1g:12mL.
