| abstract |
The invention belongs to the technical field of extraction of effective parts of traditional Chinese medicines, and in particular relates to a total flavonoid extract with antioxidative effect and a preparation method and application; Precipitation, then centrifugation, the supernatant liquid is separated and enriched by macroporous resin, eluted, concentrated and dried to obtain total flavonoid extract with antioxidant effect; Orientin, vitexin, isodoxin, quercetin 3-oxy-glucoside, luteolin, astragaloside, luteolin 4'-oxy-glucoside, and the content of total flavonoids is more than 50% . The total flavonoid extract with antioxidant effect provided by the present invention can be prepared into dosage forms such as capsules, tablets, granules, gels, sustained-release formulations, oral liquids or drop pills for use in antioxidant-related medicines or health foods . |