An improved HPLC determination of flavonoids in medicinal plant extracts
Pietta.G.P, et al.
Chromatographia, 27(9-10), 509-512 (1989)
Jong Min Kim et al.
Chemistry & biodiversity, 5(2), 352-356 (2008-02-23)
Ellagic acid (1), 3,3'-di-O-methylellagic acid (2), 3,3',4-tri-O-methylellagic acid (3), isovitexin (4), kaempferol 3-O-beta-D-glucuronide methyl ester (5), quercetin 3-O-alpha-L-arabinopyranosyl-(1-->6)-beta-D-galactopyranoside (6), ursolic acid, pomolic acid, tormentic acid, euscaphic acid, euscaphic acid 28-O-beta-D-glucopyranoside, and maslinic acid were isolated from the AcOEt- and BuOH-soluble...
C Y Choo et al.
Journal of ethnopharmacology, 142(3), 776-781 (2012-06-12)
The leaves of Ficus deltoidea are used as a traditional medicine by diabetes patients in Malaysia. The objective of the study is to identify and evaluate bioactive constituents with in vivo α-glucosidase inhibition. The partitioned extracts, subfractions and pure bioactive...
Yujie Fu et al.
Journal of separation science, 31(2), 268-275 (2008-01-16)
A method based on ultrasonic extraction (USE) followed by LC-MS is presented for the determination of vitexin and isovitexin in pigeonpea extracts in this study. The influential parameters of the USE procedure were optimized, and the optimal conditions were as...
Yujie Fu et al.
Journal of chromatography. A, 1139(2), 206-213 (2006-12-05)
Vitexin and isovitexin are a pair of isomeric compounds known as the major constituents in pigeonpea leaves and possess various pharmacological activities. In the present study, the preparative separation of vitexin and isovitexin with macroporous resins (Nankai Hecheng S &...