Vitexin
| Vitexin | |
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| Identifiers | |
| CAS number | 3681-93-4  |
| PubChem | 5280441 |
| ChemSpider | 4444098 |
| ChEBI | CHEBI:16954 |
| ChEMBL | CHEMBL487417 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C21H20O10 |
| Molar mass | 432.38 g/mol |
| Exact mass | 432.105647 |
| Appearance | Light yellow powder |
| Melting point |
203–204 °C |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Vitexin is an apigenin flavone glucoside, a chemical coupound found in the passion flower, Vitex agnus-castus (chaste tree or chasteberry) and in the Phyllostachys nigra bamboo leaves.[1] It is also found in the pearl millet (Pennisetum millet).[2]
Contents |
[edit] Metabolism
Goitrogenicity of millet flavones : Vitexin inhibits thyroid peroxidase thus contributing to goiter.[3][4]
- Vitexin beta-glucosyltransferase
- Vitexin 2"-O-rhamnoside 7-O-methyltransferase
- Isovitexin beta-glucosyltransferase
[edit] Isovitexin
Isovitexin (or homovitexin, saponaretin) is the apigenin-6-C-glucoside. It can be found in the passion flower and the açaí palm.
[edit] References
- ^ Zhang, Y; Jiao, J; Liu, C; Wu, X; Zhang, Y (2007). "Isolation and purification of four flavone C-glycosides from antioxidant of bamboo leaves by macroporous resin column chromatography and preparative high-performance liquid chromatography". Food Chemistry. doi:10.1016/j.foodchem.2007.09.037. http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T6R-4PRRBT7-4&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=19496ba79336a2655fdc3c321290cad3.
- ^ J.O. AKINGBALA (1991). "Effect of Processing on Flavonoids in Millet (Pennisetum americanum) Flour". Cereal Chem. 68 (2): 180–183. http://www.aaccnet.org/cerealchemistry/backissues/1991/68_180.pdf.
- ^ Gaitan, E (1990). "Goitrogens in food and water.". Annual review of nutrition 10: 21–39. doi:10.1146/annurev.nu.10.070190.000321. PMID 1696490.
- ^ Birzer, D. M., Klopfenstein, C. F., Leipold, H. W. (1987). "Goitre causing compounds found in pearl millet". Nutr. Rep. Int. 36: 131.
[edit] External links
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