Retention mechanism of pH‐peak‐focusing in countercurrent chromatographic separation of baicalin and wogonoside from Scutellaria baicalensis Georgi
نویسندگان
چکیده
منابع مشابه
Separation and purification of baicalin and wogonoside from the Chinese medicinal plant Scutellaria baicalensis Georgi by high-speed counter-current chromatography.
A preparative high-speed counter-current chromatography (HSCCC) method for isolation and purification of baicalin and wogonoside from the Chinese medicinal plant Scutellaria baicalensis Georgi (Huang-qin in Chinese) was successfully established by using ethyl acetate-methanol-1% acetic acid water (5:0.5:5, v/v) as the two-phase solvent system. The upper phase of ethyl acetate-methanol-1% acetic...
متن کاملNovel synthesis of flavonoids of Scutellaria baicalensis Georgi.
A concise and efficient total synthesis of the flavonoids baicalein, oroxylin A and wogonin was described. Intramolecular oxidative cyclization followed by demethylation of chalcone 1, readily prepared from trimethoxyphenol, afforded, depending upon the controlled conditions, baicalein or oroxylin A in excellent yields. Demethylation of 1 yielded 3, which, by oxidation with I(2)/dimethyl sulfox...
متن کاملScutellaria Baicalensis Georgi : A Rising Paradigm Of Herbal Remedies
There is a growing interest in the use of natural products like herbs, spices and plant extracts in the human food and animal feed industries. Scutellaria baicalensis Georgi from the Labiatae family is one of the fifty fundamental herbs of traditional Chinese medicine is thus used to treat a number of health disorders for over two thousand years. It is also called baical or chinese scutellaria ...
متن کاملAnti-Bladder-Tumor Effect of Baicalein from Scutellaria baicalensis Georgi and Its Application In Vivo
Some phytochemicals with the characteristics of cytotoxicity and/or antimetastasis have generated intense interest among the anticancer studies. In this study, a natural flavonoid baicalein was evaluated in bladder cancer in vitro and in vivo. Baicalein inhibits 5637 cell proliferation. It arrests cells in G1 phase at 100 μ M and in S phase below 75 μ M. The protein expression of cyclin B1 an...
متن کاملProtective effect of flavonoids from Scutellaria baicalensis Georgi on cerebral ischemia injury.
The protective effect of flavonoids extracted from Scutellaria baicalensis Georgi on cerebral ischemia injury has been explored in experimental animals. Scutellaria flavonoid (SF) could significantly prolong gasping time (prolonged ratio, 23.79%) and survival time after carotid artery occlusion, and decrease attenuate malondialdehyde (MDA) content in damaged brain tissues from 118.56+/-47.95 nm...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Separation Science
سال: 2020
ISSN: 1615-9306,1615-9314
DOI: 10.1002/jssc.202000455