patrinia villosa/silica

Supercritical fluid extraction (SFE) of aurentiamide acetate from Patrinia villosa Juss was performed. The optimization of parameters was carried out using an analytical-scale supercritical fluid extraction (SFE) system. Then the extraction was scaled up by 100 times using a preparative SFE system

To investigate the chemical constituents from the ethanol extract of Patrinia villosa. Various column chromatographic methods including silica gel and Sephadex LH-20 were used for the isolation and purification. Chemical structures were elucidated on the basis of spectroscopic analysis. Six

OBJECTIVE To investigate the chemical constituents of Patrinia villosa. METHODS The chemical constituents were isolated by silica gel column chromatography and semi-preparative high-performance liquid chromatography, and identified by physicochemical properties and spectral analysis (MS, 1H-NMR and

BACKGROUND Patrinia villosa (Thunb.) Juss (Valerianaceae) is an important ancient herbal medicine widely used for inflammation, wound healing, and abdominal pain. But little is known of the phytochemical constituents of this herbal plant. OBJECTIVE The objective of this study is to isolate and

OBJECTIVE To inverstigate the chemical constituents of Patrinia villosa. METHODS Under the direction of tetrazolium salt (MTf) assay, the chemical constituents were isolated by silica gel column chromatography and identified by physicochemical properties and spectral analysis (MS, FAB-MS, 1H NMR,

OBJECTIVE To study the chemical constituents of Patrinia villosa Juss. METHODS Solvent extraction, silica gel column and preparative liquid chromatography were used to separate the chemical constituents, and the chemical structures were elucidated by physico-chemical properties and spectra

OBJECTIVE To study the chemical constituents from Patrinia scabra Bunge. METHODS Chemical constituents were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were elucidated on the basis of spectroscopic analysis and chemical evidence. RESULTS Seven

OBJECTIVE To study the chemical compositions of the root and stem of Patrinia scabiasaefolia. METHODS Five compounds were obtained from the ethy acetate extract of the root and stem of P. scabiasaefolia by silica column chromatography, and identified by chemical and spectroscopic