Phytochemical profile and insecticidal activity of Agave americana leaf extract towards Sitophilus oryzae (L.) (Coleoptera: Curculionidae)
| العنوان: | Phytochemical profile and insecticidal activity of Agave americana leaf extract towards Sitophilus oryzae (L.) (Coleoptera: Curculionidae) |
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| المؤلفون: | Asma Mami Maazoun, Feten Belhadj, Chokri Messaoud, Mohamed Nejib Marzouki, Jouda Mediouni Ben Jemâa, Soumaya Haouel Hamdi |
| المصدر: | Environmental Science and Pollution Research. 26:19468-19480 |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Insecticides, Health, Toxicology and Mutagenesis, 010501 environmental sciences, 01 natural sciences, Lethal Dose 50, chemistry.chemical_compound, Rice weevil, Agave, Animals, Environmental Chemistry, Bioassay, Isorhamnetin, 0105 earth and related environmental sciences, biology, Traditional medicine, Plant Extracts, Sitophilus, fungi, food and beverages, General Medicine, biology.organism_classification, Pollution, chemistry, Phytochemical, Insect Repellents, Digestive enzyme, biology.protein, Weevils, Kaempferol, Quercetin |
| الوصف: | The main objective of the present study is to introduce a new and ecologically safe method for managing the rice weevil, Sitophilus oryzae. Therefore, the Agave americana leaf extract’s phytochemical profile, and its insecticidal activity against the adults of S. oryzae were evaluated. The A. americana leaf extract was screened for the following phytochemicals: total phenolics (14.70 ± 0.31 mg GAE/g FW), total flavonoids (5.15 ± 0.18 mg RE/g FW) and saponins (10.32 ± 0.20 mg OAE/g FW). The HPLC-ESI/TOF-MS analysis results revealed that flavonoid glycosides (kaempferol, quercetin, and isorhamnetin derivates) were the major phenolic compounds of the A. americana leaf extract. In addition, the GC-MS analysis identified n-alkanes (77.77%) as significant compounds of the lipophilic fraction from the leaf extract. Moreover, the insecticidal potential was assessed through contact and repellent bioassays towards the rice weevil adults. The LD50, LC50, and RC50 values were 10.55 μg/insect, 8.99 μg/cm2, and 0.055 μg/cm2 for topical application method, treated filter-paper method, and repellent bioassay, respectively. Furthermore, the A. americana leaf extract inhibited digestive enzyme activities, and median inhibition concentrations IC50 were evaluated to be 146.06 ± 1.74 and 86.18 ± 1.08 μg/mL for α-amylase and protease, respectively. Overall, our results highlighted the promising potential of the leaf extract against S. oryzae adults, allowing us to recommend the extract under investigation as an ecofriendly alternative to synthetic insecticides. |
| تدمد: | 1614-7499 0944-1344 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf14db8bba2db5553611ee98e938c61a https://doi.org/10.1007/s11356-019-05316-6 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....cf14db8bba2db5553611ee98e938c61a |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 16147499 09441344 |
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