Caffeic acid is found in many plants, such as polygonum aviculatum, goshen, hohohemp, mint, valerian, eucommia ulmoides, polygonum aviculatum, lemon peel, cyperus herba and dandelion. Caffeic acid is especially abundant in hawthorn, coffee and lemons. The appearance of caffeic acid is light yellow powder, soluble in hot water and cold ethanol, insoluble in cold water, in its molecular structure contains unsaturated double bonds, easy to be oxidized, poor stability in alkaline solution,caffeic acid aqueous solution when ferric chloride is green.
Caffeic acid can be used in skin care, medicine field, it is because it can not only remove free radicals, reducing iron ion chelating ability, inhibit the oxidation of low density lipoprotein, partial inhibition of uv damage to skin, and in the clinical treatment, caffeic acid and commonly used medicine medicine, can stimulate white blood cells, improve the level of platelet, shorten the clotting time and bleeding.
