Orientin is a flavone, a chemical flavonoid-like compound. It is the 8-C glucoside of luteolin.
Natural occurrences Orientin is found in Adonis vernalis, in Anadenanthera colubrina and Anadenanthera peregrina, and in the Phyllostachys nigra bamboo leavesIsolation and purification of four flavone C-glycosides from antioxidant of bamboo leaves by macroporous resin column chromatography and preparative high-performance liquid chromatography. Yu Zhang, Jingjing Jiao, Chengmei Liu, Xiaoqin Wu and Ying Zhang, Food Chemistry, 1 April 2008,, Volume 107, Issue 3, Pages 1326–1336,
In food Orientin is also reported in the passion flower,Separation by capillary electrophoresis of C-glycosylflavonoids in Passiflora sp. extracts. E. R. Pastene, G. Bocaz, I. Peric, M. Montes, V. Silva and E. Riffo, Bol. Soc. Chil. Quím., v.45 n.3 Concepción set. 2000, the Açaí palm, buckwheat sprouts,Comparison of phenolic compositions between common and tartary buckwheat (Fagopyrum) sprouts, Sun-Ju Kim, I.S.M. Zaidul, Tatsuro Suzuki, Yuji Mukasa, Naoto Hashimoto, Sigenobu Takigawa, Takahiro Noda, Chie Matsuura-Endo, Hiroaki Yamauchi, in Food Chemistry, 2008, 110, pages 814-820, and in millets.Sorghum and millet phenols and antioxydants, Linda Dykes, Lloyd W. Rooney, in Journal of Cereal Science, 2006, 44, pages 236-251,
Identification The identification of orientin has been reported widely. Its identification using mass spectrometry is established.Welch, C., Zhen, J., Bassène, E., Raskin, I., Simon, J.E. and Wu, Q., 2017. Bioactive polyphenols in kinkéliba tea (Combretum micranthum) and their glucose-lowering activities. Journal of Food and Drug Analysis.
See also Isoorientin (or homoorientin) is the luteolin-6-C-glucoside.
References
External links Orientin on rdcheicals.com