Roburin A
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| Roburin A | ||
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| Identifiers | ||
| CAS number | 132864-75-6  | |
| Properties | ||
| Molecular formula | C82H50O50 | |
| Molar mass | 1835.24 g/mol | |
(verify) (what is:  /?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Roburin A is a tannin found in oak wood (Quercus robur and Quercus petraea[1] or Quercus alba[2]) or oak cork (Quercus suber[3]).
It is a dimeric compound, composed of two vescalagin subunits probably linked through an ether bond between the diphenoyl group of one subunit and the triphenoyl moiety of the other one.[4]
References
- ↑ Variability of wood extractives among Quercus robur and Quercus petraea trees from mixed stands and their relation to wood anatomy and leaf morphology. J.R. Mosedale, F. Feuillat, R. Baumes, J.-L. Dupouey, and J.-L. Puech, Can. J. For. Res., 1998, 28, pp. 994–1006
- ↑ Identification and sensory evaluation of dehydro- and deoxy-ellagitannins formed upon toasting of oak wood (Quercus alba L.). Glabasnia A, Hofmann T., J. Agric Food Chem. 16 May 2007;55(10), pp. 4109-4118, Epub 2007 Apr 20
- ↑ Changes in Tannic Composition of Reproduction Cork Quercus suber throughout Industrial Processing. Estrella Cadahía, Elvira Conde, Brígida Fernández de Simón and María Concepción García-Vallejo, J. Agric. Food Chem., 1998, 46 (6), pp. 2332–2336, doi:10.1021/jf9709360
- ↑ Roburin A, A dimeric ellagitannin from heartwood of Quercus robur. Catherine L.M. Herve du Penhoat, Veronique M.F. Michon, Abdelhamid Ohassan, Shuyun Peng, Augustin Scalbert and Douglas Gage, Phytochemistry, Volume 30, Issue 1, 1991, pp. 329-332, doi:10.1016/0031-9422(91)84148-L
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