𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preparative isolation of hydrolysable tannins chebulagic acid and chebulinic acid from Terminalia chebula by high-speed counter-current chromatography

✍ Scribed by Quanbin Han; Jingzheng Song; Chunfeng Qiao; Lina Wong; Hongxi Xu

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
441 KB
Volume
29
Category
Article
ISSN
1615-9306

No coin nor oath required. For personal study only.

✦ Synopsis

Preparative isolation of hydrolysable tannins chebulagic acid and chebulinic acid from Terminalia chebula by high-speed counter-current chromatography As a chromatographic column, the high-speed counter-current chromatography system was equipped with a preparative HPLC series, enabling the successful isolation of hydrolysable tannins from the fruits of Terminalia chebula, a traditional Chinese medicine. The two-phase solvent system was composed of n-hexane-ethyl acetate-methanol-water (1 : 20 : 1 : 20 v/v). As a result, 33.2 mg chebulagic and 15.8 mg chebulinic acids were obtained in one step from 300 mg of crude extract. Their purities were determined by HPLC to be 95.3 and 96.1%, respectively. The chemical structures were identified by their MS and 1 H NMR spectra.

📜 SIMILAR VOLUMES

Preparative isolation and purification o
Preparative isolation and purification of two amides from Mallotus lianus Croiz by high-speed counter-current chromatography
✍ Liyan Jiang; Yanbin Lu; Shan He; Yuanjiang Pan; Cuirong Sun; Tianxing Wu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 457 KB

## Abstract High‐speed counter‐current chromatography (HSCCC) was applied to the preparative isolation and purification of two amides from __Mallotus lianus__ Croiz. In a single HSCCC separation, using the two‐phase solvent system composed of __n__‐hexane/ethyl acetate/methanol/water (5:1:5:1 v/v),

Preparative isolation and purification o
Preparative isolation and purification of antioxidative diarylheptanoid derivatives from Alnus japonica by high-speed counter-current chromatography
✍ Soon Sung Lim; Min Young Lee; Hong Ryul Ahn; Soon Jung Choi; Jae-Yong Lee; Sang 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 228 KB

## Abstract This study employed the online HPLC‐2,2′‐azino‐__bis__(3‐ethylbenzthiazoline‐6‐sulphonic acid) (ABTS)^+^ bioassay to rapidly determine the antioxidant compounds occurring in the crude extract of __Alnus japonica__. The negative peaks of the ABTS^+^ radical scavenging detection system, w

Preparative isolation of alkaloids from
Preparative isolation of alkaloids from Corydalis bungeana Turcz. by high-speed counter-current chromatography using stepwise elution
✍ Lili Niu; Zhensheng Xie; Tanxi Cai; Peng Wu; Peng Xue; Xiulan Chen; Zhiyong Wu; 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 436 KB

## Abstract High‐speed counter‐current chromatography (HSCCC) was successfully applied for the preparative separation and purification of alkaloids from __Corydalis bungeana__ Turcz. (Kudiding in Chinese) for the first time. After the measurement of partition coefficient of seven target alkaloids i

Preparative isolation and purification o
Preparative isolation and purification of atractylon and atractylenolide III from the Chinese medicinal plant Atractylodes macrocephala by high-speed counter-current chromatography
✍ Chunxia Zhao; Chaohong He 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 456 KB

Preparative isolation and purification of atractylon and atractylenolide III from the Chinese medicinal plant Atractylodes macrocephala by high-speed counter-current chromatography The medicinal plant Atractylodes macrocephala (Baizhu in Chinese) has been widely used in traditional Chinese medicine

Preparative isolation of pseudolaric aci
Preparative isolation of pseudolaric acids A and B, and their glucosides from the root bark of Pseudolarix kaempferi using high-speed counter-current chromatography
✍ Quan-Bin Han; Lina Wong; Fanny Lai; Nian-Yun Yang; Jing-Zheng Song; Chun-Feng Qi 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 405 KB

## Abstract In order to provide the chemical markers for the quality control of herbal medicines, four diterpenoids, pseudolaric acids A and B (PAA and PAB), and their glucosides were isolated from the methanol extract of the Chinese herb __Pseudolarix kaempferi__ using high‐speed counter‐current c

Preparative isolation of flavonoid compo
Preparative isolation of flavonoid compounds from Oroxylum indicum by high-speed counter-current chromatography by using ionic liquids as the modifier of two-phase solvent system
✍ Renmin Liu; Lili Xu; Aifeng Li; Ailing Sun 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 226 KB

## Abstract A preparative high‐speed counter‐current chromatography method for isolation and purification of flavonoid compounds from __Oroxylum indicum__ was successfully established by using ionic liquids as the modifier of the two‐phase solvent system. Two flavonoid compounds including baicalein