scholarly journals Phytotoxic activity and chemical composition of Cassia absus seeds and aerial parts

2017 ◽  
Vol 31 (24) ◽  
pp. 2918-2922 ◽  
Author(s):  
I. Zribi ◽  
H. Sbai ◽  
N. Ghezal ◽  
G. Richard ◽  
D. Trisman ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Phytotoxic Activity ◽  
Aerial Parts

scholarly journals Chemical Composition and Biological Activities of the Essential Oil from Calamintha nepeta Plants from the Wild in Southern Italy

2013 ◽  
Vol 8 (1) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Emilia Mancini ◽  
Laura De Martino ◽  
Hanna Malova ◽  
Vincenzo De Feo
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Biological Activities ◽  
Lepidium Sativum ◽  
Campania Region ◽  
Phytotoxic Activity ◽  
Aerial Parts ◽  
Main Components ◽  
Lepidium Sativum L

The chemical composition of the essential oil from aerial parts of Calamintha nepeta (L.) Savi, collected in the Campania Region, was obtained by hydrodistillation and analyzed by GC and GC-MS. In all, 42 compounds were identified. The oil was characterized by a prevalence of the sesquiterpenic fraction (80.8%). The main components were 1,10-di- epi-cubenol (18.5%), allo-aromadendrene epoxide (11.4%) and cadalene (5.7%). The essential oil was evaluated for its in vitro potential phytotoxic activity against germination and initial radical growth of Raphanus sativus L., Lepidium sativum L., Sinapis arvensis L., Triticum durum L. and Phalaris canariensis L. seeds. The essential oil showed no antioxidant activity.

Chemical Composition, Antibacterial, Insecticidal and Anti-Oxidant Activities of Three Acantholimon Species (A. atropatanum, A. gilliatii and A. tragacanthium)

2020 ◽  
Vol 10 (3) ◽  
pp. 272-278
Author(s):  
Ardalan Pasdaran ◽  
Satyajit D. Sarker ◽  
Lutfun Nahar ◽  
Azadeh Hamedi
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Main Compound ◽  
Aerial Parts ◽  
Anti Oxidant ◽  
Gas Chromatography Mass Spectroscopy

Background: The essential oil from the Acantholimon genus have been an integral part of the traditional food additive in Middle East. Most of the plants in Acantholimon genus have not been studied scientifically. The aim of this study is to investigate the chemical composition, antibacterial, insecticidal and anti-oxidant activities of three Acantholimon species including Acantholimon atropatanum, A. gilliatii and A. tragacanthium. Method: The essential oils of the aerial parts were extracted by hydrodistillation. Chemical constitutions were identified by gas chromatography- mass spectroscopy technique, also their toxicities were assessed against the two important grain products pests, Oryzeaphilus mercator and Tribolium castaneum. Antibacterial activity was assessed against the three foodborne bacteria that include Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus based on the disc diffusion assay. Free-radical-scavenging property was identified based on 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity. Results: 2-hexahydrofarnesyl acetone was the main compound in A. gilliatii and A. tragacanthium, whilst farnesyl acetone, heptacosane and germacrene D were the principal components of A. atropatanum essential oil. These oils exhibited 40-90% mortality of O. mercator and/or T. castaneum at a dose of 12 μl/l air after 48h of exposure, and exhibited significant free-radicalscavenging property (RC50 = 3.7 × 10-3 - 8.3 × 10-3 mg/ml). The oils of A. tragacanthium and A. gilliatii showed a weaker antibacterial activity compared to A. atropatanum. Conclusion: A. atropatanum, A. gilliatii and A. tragacanthium essential oils had significant insecticidal and anti-oxidant properties. They also showed week to moderate antibacterial activity against P. aeruginosa and S. aureus.

scholarly journals Stem Lettuce and Its Metabolites: Does the Variety Make Any Difference?

Foods ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 59
Author(s):  
Janusz Malarz ◽  
Klaudia Michalska ◽  
Anna Stojakowska
Keyword(s):  
Chemical Composition ◽  
Plant Material ◽  
Methanolic Extract ◽  
Sesquiterpene Lactones ◽  
Scavenging Activity ◽  
Nmr Analysis ◽  
Caffeic Acid Derivatives ◽  
Aerial Parts ◽  
Dpph Scavenging Activity ◽  
Dpph Scavenging

The objective of the present study was to characterize chemical composition of hitherto unexamined aerial parts of Lactuca sativa var. angustana cv. Grüner Stern. In contrast to leafy and head varieties of the lettuces, asparagus lettuce grown in Europe is much less studied. Fractionation of a methanolic extract from leaves of L. sativa cv. Grüner Stern, supported with HPLC/DAD and 1H NMR analysis, led to the isolation and/or identification of numerous terpenoid and phenolic compounds, including five apocarotenoids—(-)-loliolide, (+)-dehydrovomifoliol, blumenol A, (6S,9S)-vomifoliol, and corchoionoside C; three sesquiterpene lactones; two lignans—((+)-syringaresinol and its 4-O-β-glucoside); five caffeic acid derivatives; and three flavonoids. Some of the compounds, to the best of our knowledge, have never been isolated from L. sativa before. Moreover, monolignols, phenolic acids and a tryptophan-derived alkaloid were found in the analyzed plant material. Stems, leaves and shoot tips of the asparagus lettuce were examined to assess their phenolics and sesquiterpene lactone content as well as DPPH scavenging activity. Another stem lettuce—L. sativa var. angustana cv. Karola, two cultivars of leafy lettuces and one species of wild lettuce—L. serriola, were also examined as a reference material using HPLC/DAD. The results have been discussed regarding our previous studies and the literature data available.

scholarly journals Structural Elucidation and Cytotoxicity of a New 17-Membered Ring Lactone from Algerian Eryngium campestre

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3250 ◽  
Author(s):  
Ali Medbouhi ◽  
Aura Tintaru ◽  
Claire Beaufay ◽  
Jean-Valère Naubron ◽  
Nassim Djabou ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Trypanosoma Brucei ◽  
Crude Extract ◽  
Membered Ring ◽  
Leishmania Mexicana ◽  
Similar Concentration ◽  
Trypanosoma Brucei Brucei ◽  
Aerial Parts ◽  
Germacrene D ◽  
Low Activity

The chemical composition of a hexanic extract of Eryngium campestre, obtained from its aerial parts, was investigated by GC-FID, GC/MS, HRMS, NMR and VCD analyses. The main compounds were germacrene D (23.6%), eudesma-4(15)-7-dien-1-β-ol (8.2%) and falcarindiol (9.4%), which are associated with a new uncommon and naturally found 17-membered ring lactone. This 17-membered ring features conjugated acetylenic bonds, named campestrolide (23.0%). The crude extract showed moderate antitrypanosomal (Trypanosoma brucei brucei), antileishmanial (Leishmania mexicana mexicana) and anticancer (cancerous macrophage-like murine cells) activities, and also displayed cytotoxicity, (human normal fibroblasts) in similar concentration ranges (IC50 = 3.0, 3.9, 4.0 and 4.4 µg/mL respectively). Likewise, campestrolide displayed low activity on all tested cells (IC50: 12.5–19.5 µM) except on Trypanosoma, on which it was very active and moderately selective (IC50 = 2.2 µM. SI= 8.9). In conclusion, the new compound that has been described, displaying a singular structure, possesses interesting antitrypanosomal activity that should be further investigated and improved.

scholarly journals Data collection and advanced statistical analysis in phytotoxic activity of aerial parts exudates of Salvia spp

2011 ◽  
Vol 21 (5) ◽  
pp. 856-863 ◽  
Author(s):  
M. Giacomini ◽  
A. Bisio ◽  
E. Giacomelli ◽  
S. Pivetti ◽  
S. Bertolini ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Data Collection ◽  
Phytotoxic Activity ◽  
Aerial Parts

Chemical composition and biological activities of Indigofera hirsuta aerial parts’ methanol fractions

2018 ◽  
Vol 34 (4) ◽  
pp. 558-562 ◽  
Author(s):  
Christina-Vasiliki Karakousi ◽  
Chrysi Gabrieli ◽  
Eugene Kokkalou
Keyword(s):  
Chemical Composition ◽  
Biological Activities ◽  
Aerial Parts ◽  
Indigofera Hirsuta
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