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Pharmacognostic and Phytochemical Studies of <i>Smilax domingensis</i>Willd. in Cuba

American Journal of Plant Sciences 2017年第6期8卷 1462-1470页

作者： José González Yaque Max Monan Armando Cuéllar Teylor de Armas Enrique Gómez Eniel Dopico Faculty of Pharmacy and Foods Havana University Havana Cuba arvarnam Martinica France

A preliminary pharmacognostical and phytochemical evaluation of Smilax domingensis Willd., (Smilacaceae) was realized to determine the macromorphology and micromorphology characteristics, the physicochemical and phytochemical parameters from the rhizome of this spice that grows in Cuba. This crude drug showed the characteristic physicochemical values such as moisture content (13.11%), extractable matter in ethanol at 70% (13.53%), total ashes (3.45%), water soluble ashes (2.43%) and acid insoluble ashes (0.64%). Phytochemical screening revealed the possible presence of alkaloids, oils and/or fats, coumarins, saponins, flavonoids, pyrogallol-type tannins, quinones, catechins, reductants sugars, triterpens and steroids and absence of resins, aminoacids, cardiotonic glycosides, anthocyanidins and astringent and/or bitter principles, realized under WHO parameters.

关键词： Smilax domingensis Macromorphology Micromorphology Physicochemical Parameters Phytochemical Screening

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New Reported Flavonol Characterized by NMR from the Petals of Talipariti elatum S. w. in Cuba

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American Journal of Plant Sciences 2016年第11期7卷 1564-1569页

作者： José González Yaque Armando Cuéllar Marc Gaysinski Max Monan Enmanuel Nossin Frantz François-Haugrin Faculty of Pharmacy and Food Havana University Havana Cuba Faculty of Science Nice Sophia-Antipolis University Nice France arvarnam Martinic France

From yellow petals of Blue Mahoe, besides the known flavonoids gossypetin and gossypitrin, a new one gossypetin derivative was isolated from ethanolic extracts after Soxhlet extraction. Hence, in this study, we present a validated, sensitive and reliable NMR method for the simultaneous identification of flavonoids in this flower drug. Structure analyses of this flavonoid, revealed the identical glycoside moiety attached to a flavonol skeleton like gossypitrin, for which the structure of gossypetin-3'-O-β-glucoside was deduced from extensive NMR experiments.

关键词： Flavonoids NMR Spectroscopy Petals Chemical Composition

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Isolation and Characterization of Flavonols by HPLC-UV-ESI-MS/MS from Talipariti elatum S.w

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American Journal of Plant Sciences 2016年第8期7卷 1198-1204页

作者： José González Yaque Armando Cuéllar Lionel Massi Max Monan Enmanuel Nossin Frantz François-Haugrin Faculty of Pharmacy and Food Havana University Havana Cuba Faculty of Science Nice Sophia-Antipolis University Nice France arvarnam Martinic France

The red petals of the flowers of Talipariti elatum, commonly named majagua is used as antitussive, expectorant and antasthmatic in phytotherapy, although the plants’ composition has not been determined in detail so far. Hence, in this study, we present a validated, sensitive, reliable, and cheap narrow-bore LC-UV-ESI-MS/MS coupled to PDA (photodiode array detectors) method for the simultaneous isolation and identification of flavonoids and their glycosidic derivatives in this flower drug. In addition, the structures of two compounds have been elucidated by LC-MS experiments after isolation. Structure analyses allow proposing the presence of gossypitrin (gossypetin-7-O-glucoside) or gossypetin-3'-O-glucoside, a quercetin derivative, possibly quercetin-3-O-glucoside and an unidentified compound with an impair number of m/z, probably an alkaloid.

关键词： Flavonoids HPLC MS Petals Chemical Composition

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New Phytochemical Profile of Ethanolic Extract from Talipariti elatum （Sw.）

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Journal of Pharmacy and Pharmacology 2017年第8期5卷 489-496页

作者： Jose Gonzailez Armando Cue11ar Loik Sylvius Frederic Verdeau Frantz Francois Haugrin Juliette Smith-Ravin Odile Marcelin Department of Pharmacy Faculty of Pharmacy and Foods Havana University Havana 10400 Cuba Laboratory Biospheres of FWI University (UA) Faculty of Technolog Martinica 97220 France arvarnam Martinica 97220 France

Genus Talipariti has long history of use in various traditional medicine therapeutic applications in Cuba, especially intreatment of bronchial asthma and flu. Petals of genus Talipariti are rich source of secondary metabolites and most of these metabolitesare reported to possess expectorant, antasthmatic, appetitive, antioxidant, and antibacterial properties. Hence, in our study, we present avalidated, sensitive, reliable, and cheap narrow-bore UHPLC-UV-ESI-MS/MS coupled to PDA （photodiode array detectors） methodfor the simultaneous isolation and identification of flavonoids and their glycosidic derivatives in this flower drug. In addition, abouttwelve compounds were identified in this specie based on chromatography retention time （tR）, UV and MS/MS spectra and comparedwith those of isolated authentic compound and literature data. About eighth constituents were reported for the first time from Taliparitielatum. Our results demonstrated the developed method could be employed as a rapid and versatile analytical technique foridentification of chemical constituents and quality control of Talipariti elatum.

关键词： UHPLC-DAD-ESI-MS/MS, flavonoids, petals, chemical-compounds, talipariti.

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