Chemical composition, antimicrobial, and cytotoxicity studies on<i>S. erianthum</i>and<i>S. macranthum</i>essential oils

Essien, Emmanuel E.; Ogunwande, Isiaka A.; Setzer, William N.; Ekundayo, Olusegun

doi:10.3109/13880209.2011.614623

Cited by 59 publications

(38 citation statements)

References 26 publications

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“…The components can help prevent and cure liver disease [6], urinary tract infection [7], and leucorrhea [8] and promote heat clearing, detoxification [9], and dissolving stasis [10]. S .…”

Section: Introductionmentioning

confidence: 99%

Regeneration of Solanum nigrum by Somatic Embryogenesis, Involving Frog Egg-Like Body, a Novel Structure

Chang

Liu

et al. 2014

PLoS ONE

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A new protocol was established for the regeneration of Solanum nigrum by frog egg-like bodies (FELBs), which are novel somatic embryogenesis (SE) structures induced from the root, stem, and leaf explants. The root, stem, and leaf explants (93.33%, 85.10%, and 100.00%, respectively) were induced to form special embryonic calli on Murashige and Skoog (MS) medium containing 1.0 mg/L 2,4-dichlorophenoxyacetic acid, under dark condition. Further, special embryonic calli from the root, stem, and leaf explants (86.97%, 83.30%, and 99.47%, respectively) were developed into FELBs. Plantlets of FELBs from the three explants were induced in vitro on MS medium supplemented with 5.0 mg/L 6-benzylaminopurine and 0.1 mg/L gibberellic acid, and 100.00% plantlet induction rates were noted. However, plantlet induction in vivo on MS medium supplemented with 20 mg/L thidiazuron showed rates of 38.63%, 15.63%, and 61.30% for the root, stem, and leaf explants, respectively, which were lower than those of the in vitro culture. Morphological and histological analyses of FELBs at different development stages revealed that they are a novel type of SE structure that developed from the mesophyll (leaf) or cortex (stem and root) cells of S. nigrum.

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“…The components can help prevent and cure liver disease [6], urinary tract infection [7], and leucorrhea [8] and promote heat clearing, detoxification [9], and dissolving stasis [10]. S .…”

Section: Introductionmentioning

confidence: 99%

Regeneration of Solanum nigrum by Somatic Embryogenesis, Involving Frog Egg-Like Body, a Novel Structure

Chang

Liu

et al. 2014

PLoS ONE

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“…For instance, the essential oil of D. lanceolata contains substances as δ-cadinene, α-terpineol and elemol, found in several vegetal species, which have demonstrated bacteriostatic and antiseptic activities [16]. p -Cymene, β-pinene, humulene epoxide II and caryophyllene oxide identified in Solanum erianthum and Solanum macranthum also have inhibited the growth of microorganisms [17]. In addition, caryophyllene oxide, α-terpineol and limonene displayed antifungal activity against onychomycosis, Candida albicans and Cryptococcus neoformans [18,19].…”

Section: Resultsmentioning

confidence: 99%

Chemical Composition and Biological Activities of the Essential Oils from Duguetia lanceolata St. Hil. Barks

et al. 2012

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Essential oils of Duguetia lanceolata barks, obtained at 2 (T2) and 4 h (T4), were identified by gas chromatography and gas chromatography/mass spectrometry. β-Elemene (12.7 and 14.9%), caryophyllene oxide (12.4 and 10.7%) and β-selinene (8.4 and 10.4%) were the most abundant components in T2 and T4, respectively. The essential oils inhibited the growth of Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli and Candida albicans. The essential oils were cytotoxic against brine shrimp. The extraction time influenced the chemical composition and biological activities of essential oils obtained from the barks of D. lanceolata.

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“…Minimum inhibitory concentration (MIC) was determined using the tube double-dilution technique (Essien et al, 2012). The antibacterial effects of the oil were tested against the Gram-positive bacteria, Bacillus subtilis and Staphylococcus aureus, and the Gram-negative bacteria, Pseudomonas aeruginosa and Escherichia coli.…”

Section: Antimicrobial Activitymentioning

confidence: 99%

The essential oils chemical compositions and antimicrobial, antioxidant activities and toxicity of threeHyptisspecies

Huang

Jiang

et al. 2013

Pharmaceutical Biology

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Context: Hyptis suaveolens (Linn.) Poit., Hyptis rhomboidea Mart. et Gal., and Hyptis brevipes Poit., are three species of Hyptis Jacq. (Lamiaceae). Hyptis suaveolens is used for the treatment of fever, headache, gastrointestinal bloating and rheumatism in the traditional folk medicine; Hyptis rhomboidea for hepatitis, ulcer and swollen poison; and Hyptis brevipes for asthma and malaria. Objective: To characterize chemical compositions of the oils from three Hyptis species and evaluate their potential antimicrobial, radical scavenging activities and toxicities against brine shrimp. Materials and methods: The oils were obtained by hydrodistillation, and their chemical compositions were investigated by gas chromatography-mass spectrometry (GC-MS). Minimum inhibitory concentrations (MICs) were determined using the tube double-dilution technique. The antioxidant activities were investigated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay and toxicities by the brine shrimp bioassay. Results: Forty-seven, 33 and 28 constituents of oils isolated, respectively, from H. suaveolens, H. rhomboidea and H. brevipes were identified. Among the essential oils, the strongest antioxidant activity was exhibited by H. brevipes with an SC 50 value of 2.019 AE 0.25 mg mL À1. The H. brevipes oil exhibited the strongest antimicrobial activity (3.125-6.25 mg mL À1) on pathogens employed in the assay. They all showed significant toxicities with median lethal concentration (LC 50 ) values of 62.2 AE 3.07 mg mL À1, 65.9 AE 6.55 mg mL À1 and 60.8 AE 9.04 mg mL À1, respectively. Discussion and conclusions: The three Hyptis species oils possess strong antimicrobial activities and toxicities. Hyptis rhomboidea and H. brevipes showed considerable antioxidant activity compared to the positive control.

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Chemical composition, antimicrobial, and cytotoxicity studies onS. erianthumandS. macranthumessential oils

Cited by 59 publications

References 26 publications

Regeneration of Solanum nigrum by Somatic Embryogenesis, Involving Frog Egg-Like Body, a Novel Structure

Regeneration of Solanum nigrum by Somatic Embryogenesis, Involving Frog Egg-Like Body, a Novel Structure

Chemical Composition and Biological Activities of the Essential Oils from Duguetia lanceolata St. Hil. Barks

The essential oils chemical compositions and antimicrobial, antioxidant activities and toxicity of threeHyptisspecies

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