High performance liquid chromatography-nuclear magnetic resonance spectroscopic analyses of taxane diterpenoids from three Taxus species were carried out employing a stopped-flow technique. Several taxanes have been identified from 500 mg leaf samples without prior isolation.
Analysis of 13 phenolic compounds in Aloe species by high performance liquid chromatography
✍ Scribed by M. K. Park; J. H. Park; Na Young Kim; Young Geun Shin; Yong Seok Choi; Jin Gyun Lee; Kyeong Ho Kim; Seung Ki Lee
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 308 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0958-0344
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✦ Synopsis
Thirteen phenolic compounds from Aloe barbadensis (syn. A. vera) and A. arborescens were analysed by high performance liquid chromatography, using a reverse phase column eluted with a methanol: water gradient, and detected by UV at 293 nm. Aloesin, 8-C-glucosyl-7-O-methyl-(S)-aloesol, neoaloesin A, 8-O-methyl-7hydroxyaloin A and B, 10-hydroxyaloin A, isoaloeresin D, aloin A and B, aloeresin E and aloe-emodin from A. barbadensis: and aloenin, aloenin B, 10-hydroxyaloin A, aloin A and B, and aloe-emodin from A. arborescens, were identified and quantified. The seasonal variation of two Aloe species was also examined by this method.
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