3 results about "Hypericum ascyron" patented technology

This invention discloses an optimized extraction and purification process for total flavonoids from Hypericum perforatum and its application in photodamage protection. Belonging to the field of natural product extraction technology, the process includes the following steps: using Hypericum perforatum powder as raw material, ultrasonic-assisted extraction is performed, followed by centrifugation, collection of the supernatant, and repeated extraction of the residue twice. The supernatants are combined to obtain a total flavonoid extract from Hypericum perforatum. The extract is then purified by adsorption using a macroporous adsorption resin, and the eluent is collected, concentrated, and dried to obtain high-purity total flavonoids from Hypericum perforatum. This invention features a stable process, high extraction efficiency, and is environmentally friendly, making it suitable for industrial production. The prepared total flavonoids from Hypericum perforatum exhibit high purity and significant antioxidant and photoprotective effects, and can be widely used in antioxidant, skin protection, and sunscreen products.

The invention is suitable for the technical field of traditional Chinese medicine preparations, and provides a rhinitis capsule and a preparation method thereof.The rhinitis capsule is prepared from, by weight, 5 parts of folium eriobotryae, 15 parts of fructus xanthii, 15 parts of radix angelicae, 25 parts of radix puerariae, 15 parts of hypericum ascyron and 9 parts of flos magnoliae liliflorae; the auxiliary materials comprise a filling agent, an adhesive, a lubricating agent and a disintegrating agent. According to the rhinitis capsule and the preparation method thereof provided by the scheme, the synergistic effect of dredging orifices, clearing heat and strengthening the body resistance is realized by optimizing the raw material compatibility and the preparation process, and meanwhile, the drug effect stability and safety are improved.

The invention discloses an isopentenyl xanthone compound as well as a preparation method and application thereof, and relates to the technical field of medicines, and the preparation method comprises the following steps: 1) chopping the whole herb of hypericum ascyron, performing cold soaking extraction, collecting filtrate, and performing vacuum concentration to obtain an extract; 2) subjecting the extract obtained in the step 1) to silica gel column chromatography and mobile phase gradient elution to obtain three fractions Fr.A-Fr.C; the preparation method comprises the following steps: 1) preparing a fraction Fr.A, 2) preparing a fraction Fr.A, 3) carrying out MCI column chromatography and gradient elution on the fraction Fr.A in the step 2) to obtain six fractions Fr.A1 to Fr.A6, 4) carrying out silica gel column chromatography and gradient elution on the fraction Fr.A3 in the step 3) to obtain 11 fractions Fr.A3.1 to Fr.A3.11, and 5) carrying out HPLC high performance liquid chromatography on the fraction Fr.A3.10 in the step 4) to prepare and separate the compound which is used for preparing the anti-Alzheimer disease medicine.