Constituents of Agave americana and Agave barbadensis

Tinto, Winston F.; Simmons-Boyce, Joanne L.; McLean, Stewart; Reynolds, William F.

doi:10.1016/j.fitote.2005.04.013

Cited by 40 publications

(22 citation statements)

References 7 publications

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“…A. americana is used for textile fibre production (Hamissa et al 2007) and has been used in traditional medicine as natural defaunating agent in animals as the leaves contain high concentrations of saponins (Nasri & Salem 2012). Tinto et al (2005) reported the isolation of a new homoisoflavonoid from A. americana leaves. Eight steroidal compounds, including three new hecogenin glycosides, were isolated from fermented A. americana leaves (Jian-Ming et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Plant growth regulators optimization for maximize shoots number in Agave americana L. by indirect organogenesis

Reyes-Zambrano¹,

Lecona-Guzmán²,

Barredo-Pool³

et al. 2016

Gayana Bot.

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Section: Introductionmentioning

confidence: 99%

Plant growth regulators optimization for maximize shoots number in Agave americana L. by indirect organogenesis

Reyes-Zambrano¹,

Lecona-Guzmán²,

Barredo-Pool³

et al. 2016

Gayana Bot.

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“…In the work on Dragon's Blood from D. draco [10], the compound 3-(4-dihydroxybenzyl)-5,7-dimethoxychroman was described without stereochemistry at C-3 but with optical rotation data, showing that the compound is dextrorotatory (+). The reported optical rotation for 7-hydroxy-3-(4-methoxybenzyl)chroman was (+) [11], showing a trend for this group of compounds. For the 6,4 -dihydroxy-8-methoxyhomoisoflavan, the absolute configuration at C-3 was reported as (3R) and the compound was dextrorotatory (+) [12].…”

Section: Resultsmentioning

confidence: 85%

“…The compounds showed effect against Helicobacter pylori and moderate thrombin inhibitory effect [17]. Homoisoflavonoids have been also isolated from the rhizomes of the Agavaceae Agave barbadensis [11] and from the bark of the Meliaceae Soymida febrifuga [12]. According to Dewick [18], related compounds isolated from Eucomis and Scilla species (Liliaceae) are biosynthetized from a chalcone-type skeleton by the addition of a carbon atom derived from methionine.…”

Section: Resultsmentioning

confidence: 99%

New Homoisoflavanes, a New Alkaloid and Spirostane Steroids from the Roots of Herreria montevidensis Klotzsch ex Griseb. (Herreriaceae)

Dutra-Behrens

Schmeda-Hirschmann

2016

Molecules

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Abstract:The roots of the South American vine Herreria montevidensis Klotzsch ex Griseb. (Herreriaceae) are used in traditional medicine by several Amerindian groups of the Paraguayan Chaco. Little is known on the chemistry of the plant, despite its widespread use across the South American Chaco. From the ethyl acetate/methanol 1:1 extract of the roots, four new and one known homoisoflavanoid, two flavan derivatives, a stilbene, a new alkaloid, and three new and four known spirostane steroids were isolated. The corresponding structures were elucidated by spectroscopic and spectrometric means. The homoisoflavonoids of the plant are related to compounds isolated from the Dracaenaceae (formerly Agavaceae) sources of the Chinese crude drug Dragon's Blood. The new alkaloid is a novel skeleton that can be used as a chemical marker of Herreria. The spirostane steroids suggest chemotaxonomic relations with the Liliales. This is the first comprehensive report on the chemistry of a South American Herreria species.

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“…A complex fl avanone (5,7dihydroxi-6,5'-di-metoxi-3', 4'-metilenedioxifl avanone) present in somatic tissues (Parmar et al, 1992), and of two fl avonol glycosides (kaempferol-3-O-glucoside and kaempferol-3-O-rutinoside) from the fl owers of A. americana (Subramanian and Nair, 1970) have been reported. Also, three complex isofl avanoids have been identifi ed in the rhizomes of A. barbadensis (Tinto et al, 2005). Twenty three fl avonoids were recently reported by Almaraz-Abarca et al (2009) for adult foliar tissues of A. durangensis, all fl avonol glycosides, most of them being derivatives of kaempferol.…”

Section: Discussionmentioning

confidence: 99%

“…In spite of the many taxonomic controversies about the delimitation of many species of Agave (Gentry, 1982;González-Elizondo et al, 2009), efforts focused in determining the taxonomic signifi cance of the fl avonoid profi les in this genus have been scarce. Agave americana (Parmar et al, 1992;Subramanian and Nair, 1970;Tinto et al, 2005), and A. barbadensis (Tinto et al, 2005) are among the few species of Agave studied for the fl avonoid composition, although with no taxonomic aims. For those species, complex fl avanoids were reported.…”

mentioning

confidence: 99%

Variability of the Foliar Phenol Profiles of the Agave victoriae-reginae Complex (Agavaceae).

Almaraz-Abarca¹,

González-Elizondo²,

Campos³

et al. 2013

Bot. Sci.

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Abstract:The foliar phenol profi les of eight populations of the Agave victoriae-reginae complex were determined by high performance liquid chromatography with diode array detection in order to assess the variability of those compounds across the natural distribution of the complex, and to determine their taxonomical signifi cance. With comparative aims Agave lechuguilla and A. striata were analyzed in the same manner. A total of 81 phenolic compounds were detected, comprising 18 phenolic acids, 51 fl avonoids (26 fl avonols, 19 dihydrovonoids, and six fl avones), and 12 non identifi ed phenols. Each population of the A. victoriaereginae complex showed a different foliar phenol composition, and A. pintilla, the most recently described species of the group, could be distinguished by four compounds not shared with any other analyzed population. Phenolic acids were detected in all taxa. However, a higher proportion of those compounds was found in the A. victoriae-reginae complex, while a predominance of fl avonols (quercetin-3-O-glycosides) was found in A. striata, and a codominance of dihydrofl avonoids and fl avonols in A. lechuguilla, allowing to distinguish species-specifi c profi les. Differences in the contents of some phenolic compounds among those three species and within the A. victoriae-reginae complex were also found. Our results sustain the proposal of considering A. victoriaereginae as a species complex and the separation of A. pintilla as an independent species. The results also reveal the foliar phenol patterns as valuable chemical markers in Agave. Key words: Agave lechuguilla, Agave striata, Agave victoriae-reginae, chemical variability, phenol profi les.Resumen: Se determinaron los perfi les fenólicos foliares de ocho poblaciones del complejo Agave victoriae-reginae por medio de cromatografía líquida de alta resolución con detector de arreglo de diodos para evaluar la variabilidad de esos compuestos a través de la distribución natural del complejo, y para determinar su valor taxonómico. Con fi nes comparativos Agave lechuguilla y Agave striata se analizaron de la misma manera. Se encontró un total de 81 compuestos fenólicos, que incluyeron 18 ácidos fenólicos, 51 fl avonoides (26 fl avonoles, 19 dihidrofl avonoides y seis fl avonas), además de 12 compuestos fenólicos no identifi cados. Cada población del complejo A. victoriae-reginae presentó una composición fenólica foliar diferente, y A. pintilla, la especie más recientemente descrita del grupo, se pudo distinguir por cuatro compuestos no compartidos con ninguna otra población analizada. En todos los taxa se detectaron ácidos fenólicos; sin embargo, una predominancia de estos compuestos se encontró en el complejo A. victoriae-reginae, mientras que en A. striata se encontró predominancia de fl avonoles (derivados de quercetina), y en A. lechuguilla una codominancia de dihidrofl avonoides y fl avonoles, lo que permitió discernir perfi les especie-específi cos. Diferencias en los contenidos de algunos compuestos fenólicos entre estas tres especies ...

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Constituents of Agave americana and Agave barbadensis

Cited by 40 publications

References 7 publications

Plant growth regulators optimization for maximize shoots number in Agave americana L. by indirect organogenesis

Plant growth regulators optimization for maximize shoots number in Agave americana L. by indirect organogenesis

New Homoisoflavanes, a New Alkaloid and Spirostane Steroids from the Roots of Herreria montevidensis Klotzsch ex Griseb. (Herreriaceae)

Variability of the Foliar Phenol Profiles of the Agave victoriae-reginae Complex (Agavaceae).

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