Simultaneous Determination of α-Glucosidase Inhibitory Triterpenoids in Using HPLC-DAD-ELSD and Pressurized Liquid Extraction.

, a popular food and medicine dual purposes plant cultivated in tropical and subtropical regions, has been widely used as food crop and folk medicine, such as anti-diabetes agent, around the world. Triterpenoids have been considered as the major active ingredients of . In the present study, a high-performance liquid chromatography coupled with diode array and evaporative light scattering detectors (HPLC-DAD-ELSD) method was developed for simultaneous determination of nine triterpenoids in .

Comparison of Antioxidant Activity and Main Active Compounds Among Different Parts of Hance Using High-Performance Thin Layer Chromatography-Bioautography.

Hance (ginger family) is an important Chinese medicine, especially in Southern China. A simple and effective high-performance thin-layer chromatography coupled with 2, 2-diphenyl-1-picrylhydrazyl bioautography (HPTLC-DPPH) and electrospray ionization quadrupole time-of-flight tandem mass spectrometry (ESI-Q-TOF-MS/MS) method was developed for the bioactivity-based quality control of The HPTLC-DPPH and ESI-Q-TOF-MS/MS were applied for the analysis of different parts of after using methanol extraction for 23 batches of taproot, four batches of aerial, and three batches of fibril parts. The systematic evaluation showed that similar components in taproot and aerial parts make the major antioxidant activity.

Simultaneous Quantification of Three Curcuminoids and Three Volatile Components of Using Pressurized Liquid Extraction and High-Performance Liquid Chromatography.

A high-performance liquid chromatography (HPLC) method was investigated for the simultaneous quantification of two chemical types of bioactive compounds in the rhizome of Linn. (turmeric), including three curcuminoids: Curcumin, bisdemethoxycurcumin, and demethoxycurcumin; and three volatile components: -turmerone, -turmerone, and -turmerone. In the present study, the sample extraction system was optimized by a pressurized liquid extraction (PLE) process for further HPLC analysis.