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Luteolin, which is mainly found in the form of glycosides in various plants, such as blue orchids, peppers, wild chrysanthemums, honeysuckle and perilla leaves, has antitussive and expectorant effects. According to the latest research, respiratory symptoms such as cough and wheezing are related to chronic inflammation of the airways, such as bronchial asthma, chronic obstructive pulmonary disease, chronic pharyngitis, allergic rhinitis, etc., causing cough, sputum, wheezing, etc., are considered to be associated with local inflammation.The presence of inflammation causes the airway immune response to be impeded, so patients often have increased airway responsiveness.
Assay by HPLC
Off yellow crystalline powder
Ethanol & water
Loss on Drying
Total Heavy Metals
Total Plate Count
Total Yeast & Mold
Luteolin is widely distributed in nature, originally from the leaves, stems and branches of the genus Resedaodorata L. in Resedaceae. In addition, it can be obtained from a variety of natural herbs. It is mainly found in natural herbs such as honeysuckle,nude purple pearls, as well as Brussels sprouts, cabbage, broccoli, beets and coconut. Vegetables and other vegetables fruits and plants, such as olive oil and red wine, as well as wild balsam etc.
■ Pretreatment of herbs:
The luteolin-rich medicinal material is washed and dried, and then pulverized into a coarse powder for use.
■ Extraction and purification:
An organic solvent such as methanol, ethanol or acetone is added to the medicinal material powder, and the mixture is refluxed. The extract is concentrated under reduced pressure and then degreased with a solvent such as petroleum ether or cyclohexane, and the aqueous phase is weakly polarized with a macroporous adsorption resin. After washing with water until the effluent was colorless, it was eluted with 95% ethanol as eluent, eluted under reduced pressure, dried in vacuo and recrystallised to afford pure luteolin.
1.Luteolin powder has anti-inflammatory, antibacterial and anti-viral functions;
2. It has the effect of inhibiting prostate cancer and breast cancer;
3. It can reduce the degree of liver fibrosis and protect liver cells;
4.It has immune-regulating properties that inhibit the overactive immune system.
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