The Chemical Diversity of <i>Lantana camara</i>: Analyses of Essential Oil Samples from Cuba, Nepal, and Yemen

Satyal, Prabodh; Crouch, Rebecca A.; Monzote, Lianet; Cos, Paul; Ali, Nasser A. Awadh; Alhaj, Mehdi A.; Setzer, William N.

doi:10.1002/cbdv.201500271

Cited by 19 publications

(14 citation statements)

References 43 publications

(61 reference statements)

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“…On the other hand, this compound is absent in the essential oils of leaves of Nepal [19] and Arabia [21]. In contrast to the L. camara oils analyzed up till now from Benin, Brazil, Cuba, Nepal, Yemen, India and Arabia [7,8,11,13,16,19,21], the essential oil of the leaves of L. camara from Côte d'Ivoire contained -humulene, sabinene, germacrene D and bicyclogermacrene as major constituents, while these constituents were generally absent in most of the oils or, if present, were reported as minor or trace constituents. Taking account the chemical composition of the leaf oil from Congo [27], which seemed to be comparable with our profile, it was found numerous common components namely (E)--caryophyllene, germacrene D, -humulene Order of elution and percentages are given on apolar column (BP-1) except those with an asterisk (percentages on polar column) RIa and RIp: retention indices measured on apolar (BP-1) and polar (BP-20) columns, respectively; tr = traces.…”

Section: Leaf Oilmentioning

confidence: 96%

Chemical Investigation on Leaf, Flower and Fruit Oils of Lantana camara from Côte d'Ivoire

Nea

Tanoh

Yapi

et al. 2017

Natural Product Communications

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The compositions of essential oil obtained from leaves, flowers and fruits of Lantana camara L. growing in wild at Côte d'Ivoire, were investigated by GC and 13 C NMR. Thirty-seven compounds accounting for 88.3-94.5% of the oils have been identified. The leaf, flower and fruits of L. camara produced sesquiterpene-rich essential oils predominated by (E)-β-caryophyllene and α-humulene, in addition to the important content of sabinene, -phellandrene and thymol as monoterpenes. It was found the new chemical profiles of L. camara.

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Section: Leaf Oilmentioning

confidence: 96%

Chemical Investigation on Leaf, Flower and Fruit Oils of Lantana camara from Côte d'Ivoire

Nea

Tanoh

Yapi

et al. 2017

Natural Product Communications

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“…(Morales and Paredes, 2014). Phytochemical studies with taxonomical interest are few and have been based mainly on the essential oil composition (Sena Filho et al, 2012;Satyal et al, 2016). Despite the important studies already done, there are many other species of Verbenaceae to analyze for their phenol composition and antioxidant activity.…”

Section: Introductionmentioning

confidence: 99%

Foliar phenolic compounds of ten wild species of Verbenacea as antioxidants and specific chemomarkers

et al. 2017

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The family Verbenaceae hosts important species used in traditional medicine of many countries. The taxonomic controversies concerning the specific delimitation of several of its species make it difficult to guarantee the botanical origin of herbal preparations based on species of this family. To contribute to the development of both specific chemomarkers and a quality control tool to authenticate the botanical origin of herbal preparations of Verbenacea species, we determined the foliar HPLC-DAD phenolic profiles and the antioxidant properties of 10 wild species of this family occurring in Mexico. The contents of phenols and flavonoids varied significantly among species. Priva mexicana showed the highest levels of total phenolics (53.4 mg g -1 dry tissue) and Verbena carolina had the highest levels of flavonoids (17.89 mg g -1 dry tissue). Relevant antioxidant properties revealed by antiradical and reducing power were found for the analyzed species. These properties varied significantly in a species-dependent manner. The phenolic compounds accumulated were flavones and phenolic acids. Flavones were the only type of flavonoids found. The results of a cluster analysis showed that the compounds were accumulated in species-specific profiles. The phenolic profiles are proposed as valuable chemomarkers that can become a useful tool for the quality control concerning the botanical origin of herbal medicinal preparations based on the species analyzed. In addition, phenolic profiles could contribute importantly to solve the taxonomic controversies concerning species delimitation in the family Verbenaceae.Keywords: Verbenacea, antioxidant activity, chemomarkers, flavones, phenolic profiles. Compostos fenólicos das folhas de dez especies selvagem de Verbenaceae como antioxidantes e quimiomarcadores específicos ResumoA família Verbenaceae compreende importantes espécies utilizadas na medicina popular de muitos países. As dificuldades taxonômicas relativas à delimitação específica de muitas das suas espécies face difícil a verificar a origem botânico das preparações herbales baseadas nas espécies desta família. Para fazer uma contribuição ao desenvolvimento de indicadores taxonômicos e dum método de controle de qualidade para verificar a origem botânico de preparações herbales das espécies de Verbenaceae, os perfis fenólicos, obtidos pares HPLC-DAD, e as atividades antioxidantes das folhas de 10 espécies selvagens Mexicanas desta família foram determinados. Os conteúdos dos compostos fenólicos totais e dos flavonoides foram significativamente diferentes entre as espécies. Priva mexicana apresentou a maior quantidade de compostos fenólicos totais (53.4 mg g -1 amostra seca) e Verbena carolina apresentou a maior quantidade de flavonoides (17.89 mg g -1 amostra seca). Verifica-se importantes propriedades antioxidantes, como os resultados dos ensaios da capacidade antiradical e do poder redutor indicaram. As propriedades antioxidantes foram significativamente diferentes entre as espécies. Verificou-se que os compostos fe...

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“…Differences in bacterial susceptibility or chemical composition between EOs may account for variation in observed MICs between studies. EO composition, and therefore concentration of antimicrobial principles, can vary significantly as a result of differing growth conditions such as harvest season, geographical location and water availability or EO storage conditions, Rosewood EO was relatively inactive, with MICs ranging 8.80–35.20 mg/mL against S. aureus , E. coli , E. faecium and P. aeruginosa . Rosewood EO had lower MICs of 1.38 and 2.23 mg/mL against S. epidermidis and P. acnes , respectively, in previous work …”

Section: Resultsmentioning

confidence: 99%

Characterisation and screening of antimicrobial essential oil components against clinically important antibiotic‐resistant bacteria using thin layer chromatography‐direct bioautography hyphenated with GC‐MS, LC‐MS and NMR

Owen

White

Laird

2018

Phytochemical Analysis

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Introduction The antimicrobial activity of many essential oils (EOs) is well established, indicating that EOs may be a source of compounds for antimicrobial drug development. Thin layer chromatography‐direct bioautography (TLC‐DB) can quickly identify antimicrobial components in complex mixtures and can be applied to the screening of EOs for lead compounds. Objectives This study aimed to identify antimicrobial components of oregano, rosewood and cumin EOs against antibiotic‐sensitive and ‐resistant bacteria using TLC‐DB and a multi‐faceted approach of GC‐MS, LC‐MS and NMR techniques to characterise bioactive compounds. The study also aimed to quantify the antimicrobial activity of bioactive compounds in order to evaluate their potential for the development of therapies against antibiotic‐resistant bacteria. Materials and Methods EOs were eluted on TLC plates and sprayed with a suspension of Staphylococcus aureus, Enterococcus faecium, Escherichia coli or Pseudomonas aeruginosa (antibiotic‐sensitive and ‐resistant isolates). Zones of inhibition, visualised with iodonitrotetrazolium chloride, were subject to GC‐MS, LC‐MS and NMR to characterise the bioactive compounds. Results Seven compounds were identified from the three EOs using GC‐MS, while LC‐MS and NMR failed to detect the presence of any further non‐volatile or heat labile compounds. Carvacrol was most antimicrobial compound identified, with minimum inhibitory concentrations ranging 0.99–31.62 mM. Conclusion The identified antimicrobial compounds present in oregano, rosewood and cumin EOs including carvacrol may be candidates for the development of novel antimicrobial therapies against antibiotic‐resistant bacteria.

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The Chemical Diversity of Lantana camara: Analyses of Essential Oil Samples from Cuba, Nepal, and Yemen

Cited by 19 publications

References 43 publications

Chemical Investigation on Leaf, Flower and Fruit Oils of Lantana camara from Côte d'Ivoire

Chemical Investigation on Leaf, Flower and Fruit Oils of Lantana camara from Côte d'Ivoire

Foliar phenolic compounds of ten wild species of Verbenacea as antioxidants and specific chemomarkers

Characterisation and screening of antimicrobial essential oil components against clinically important antibiotic‐resistant bacteria using thin layer chromatography‐direct bioautography hyphenated with GC‐MS, LC‐MS and NMR

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