Skincare cream composition rich in isoflavones
A technology of isoflavones and skin cream, which is applied in the field of skin cream composition, can solve the problems of rare skin cream and achieve the effect of preventing and treating brown spots and age spots
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[0024]
[0025] Preparation
[0026] (1) Preparation of plant extract rich in isoflavones.
[0027] ① Preparation of soybean extract. Grind 1kg of soybeans into fine powder with a pulverizer, soak in 2L of petroleum ether, heat and reflux for 3 to 5 hours, and extract the fatty substances and phytosterols contained therein. After filtration, collect the filtered residue, add 2L of methanol to repeat heating and reflux operation, extract and filter. The two filtrates were combined and concentrated under reduced pressure, then a saturated solution of lead acetate was added to remove the pale yellow precipitate. Add saturated solution of lead acetate to the filtrate, filter and suspend the filtered precipitate in methanol, add hydrogen sulfide to make the lead in the lead acetate become lead sulfide precipitate. After the lead is removed from the filtrate, the light yellow flavonoid compound powder can be obtained by evaporating and concentrating. The main com...
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