scholarly journals Chemical Composition and Behavioral Effects of Five Plant Essential Oils on the Green Pea AphidAcyrthosiphon pisum(Harris) (Homoptera: Aphididae)

2017 ◽  
Vol 14 (5) ◽  
pp. e1600464 ◽  
Author(s):  
Abir Kasmi ◽  
Majdi Hammami ◽  
Emmanuel G. Raoelison ◽  
Manef Abderrabba ◽  
Jalloul Bouajila ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Behavioral Effects ◽  
Plant Essential Oils ◽  
Green Pea

scholarly journals Toxics or Lures? Biological and Behavioral Effects of Plant Essential Oils on Tephritidae Fruit Flies

Molecules ◽  
2021 ◽  
Vol 26 (19) ◽  
pp. 5898
Author(s):  
Valeria Zeni ◽  
Giovanni Benelli ◽  
Orlando Campolo ◽  
Giulia Giunti ◽  
Vincenzo Palmeri ◽  
...  
Keyword(s):  
Essential Oils ◽  
Current Knowledge ◽  
Fruit Flies ◽  
Behavioral Effects ◽  
Promising Alternative ◽  
Plant Essential Oils ◽  
The Family ◽  
Real World Applications ◽  
Human Displacement ◽  
Tephritid Fruit Flies

The family Tephritidae (Diptera) includes species that are highly invasive and harmful to crops. Due to globalization, international trade, and human displacement, their spread is continuously increasing. Unfortunately, the control of tephritid flies is still closely linked to the use of synthetic insecticides, which are responsible for detrimental effects on the environment and human health. Recently, research is looking for alternative and more eco-friendly tools to be adopted in Integrated Pest Management (IPM) programs. In this regard, essential oils (EOs) and their main compounds represent a promising alternative to chemical insecticides. EOs are made up of phytoconstituents formed from the secondary metabolism of many plants and can act as attractants or toxics, depending on the dose. Because of this unique characteristic, EOs and their main constituents are promising tools that can be used both in Sterile Insect Technique (SIT) programs and in the “lure and kill” technique, exploiting the attractiveness of the product in the former case and its toxicity in the latter. In this article, current knowledge on the biological and behavioral effects of EOs and their main constituents on tephritid fruit flies is reviewed, mainly focusing on species belonging to the Anastrepha, Bactrocera, Ceratitis, and Zeugodacus genera. The mechanisms of action of EOs, their real-world applications, and challenges related to their use in IPM are critically discussed.

scholarly journals Chemical Composition and Antibacterial Activities of Eight Plant Essential Oils from Morocco against Escherichia coli Strains Isolated from Different Turkey Organs

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hassna Jaber ◽  
Asmaa Oubihi ◽  
Imane Ouryemchi ◽  
Rachid Boulamtat ◽  
Ali Oubayoucef ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Gas Chromatography ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectroscopy ◽  
Plant Essential Oils ◽  
E Coli ◽  
Gas Chromatography Mass Spectroscopy

The aim of the present study was to determine the chemical composition of eight plant essential oils and evaluate their antibacterial activity against Escherichia coli strains isolated from different turkey organs. The essential oils were extracted by hydrodistillation and analyzed using gas chromatography-mass spectroscopy. All essential oil yielded high in a range between 2.2 and 3.12%. Gas chromatography-mass spectroscopy (GC-MS) revealed that the major constituents of Thymus vulgaris, Ocimum basilicum, Artemisia herba-alba, and Syzygium aromaticum oils were thymol (41.39%), linalool (37.16%), camphor (63.69%), and eugenol (80.83%), respectively. Results of the E. coli sensitivity evaluated by the standard antimicrobial sensitivity method varied depending on the organ of isolation. Similarly, the essential oils antimicrobial activity determined by the disc diffusion method varied all along within the organs of isolation. T. vulgaris essential oil showed the highest effective antibacterial activity against E. coli isolated from the throat with an inhibition zone diameter value of up to 23.33 mm. However, all the essential oils showed antibacterial activity and the MIC and MBC values were in the range of 1/3000 to 1/100 (v/v) and the ratios MBC/MIC were equal to 1. In conclusion, this study showed that the essential oils could be promising alternatives to overcome E. coli multiresistance in turkey.

scholarly journals Chemical composition and insecticidal activity of plant essential oils from Benin against Anopheles gambiae (Giles)

2013 ◽  
Vol 6 (1) ◽  
pp. 337 ◽  
Author(s):  
Annick D Bossou ◽  
Sven Mangelinckx ◽  
Hounnankpon Yedomonhan ◽  
Pelagie M Boko ◽  
Martin C Akogbeto ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oils ◽  
Anopheles Gambiae ◽  
Insecticidal Activity ◽  
Plant Essential Oils ◽  
Anopheles Gambiae Giles

scholarly journals Chemical composition and antimicrobial activity of essential oils from selected herbs cultivated in the South of Brazil against food spoilage and foodborne pathogens

2012 ◽  
Vol 42 (7) ◽  
pp. 1300-1306 ◽  
Author(s):  
Sheila Mello da Silveira ◽  
Anildo Cunha Júnior ◽  
Gerson Neudí Scheuermann ◽  
Fábio Luiz Secchi ◽  
Cleide Rosana Werneck Vieira
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Foodborne Pathogens ◽  
Disc Diffusion ◽  
Bacterial Strains ◽  
Plant Essential Oils ◽  
Agar Disc ◽  
Cymbopogon Flexuosus ◽  
South Of Brazil

The chemical composition of 10 selected plant essential oils obtained by steam distillation was determined by GC and GC/MS. The antimicrobial activity of the essential oils was screened against 12 important food-related bacterial strains by agar disc-diffusion assay. MIC and MBC were determined for the essential oils that presented the highest activity in the agar disc-diffusion test. The most active essential oils against the tested bacteria were, in descending order, lemongrass (Cymbopogon flexuosus), basil (Ocimum basilicum), oregano (Origanum vulgare), cinnamon leaf (Cinnamomum zeylanicum), and laurel (Laurus nobilis). Except for S. Typhimurium, the tested bateria were inhibited at MIC values lower or equal to 0.62mg mL-1 by lemongrass (Cymbopogon flexuosus) essential oil. Yersinia enterocolitica presented the highest sensitivity to all essential oils tested (CMI≤0.62mg mL-1). There was a significant correlation (P<0.05) between oxygenated monoterpenes levels in the essential oils and MIC and MBC values against Escherichia coli. Results showed that the evaluated essential oils present high potential as natural preservatives.

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