Insecticidal activity and phytochemical analysis of Pyrus communis L. extracts against malarial vector, Anopheles pharoensis Theobald, 1901 (Diptera: Culicidae)

We aimed at investigating the insecticidal activity of Pyrus communis L. against the malarial vector, Anopheles pharoensis Theobald, 1901 and its phytochemical constituents. Leaves were collected and the crude extracts were prepared using hexane (PCH) and methanol (PCM). Tested PCH and PCM possess larvicidal activity against A. pharoensis with LC50 and LC90 values of 179.9, 41.2 and 314.1, 68.9 ppm, respectively. A significant reduction in the number of eggs laid by females A. pharoensis that developed from larvae treated with PCH and PCM was noticed. Also, PCH treatment showed highest repellent activity compared with PCM. GC/MS analysis of the PCH revealed the presence of 55 identified compounds subdivided into 2 major classes viz. phenyl alkanes (38.65 %) and oxygenated sesquiterpenoids (36.41 %). LC/MS of PCM had led to the identification of 37 compounds, mainly flavonoids, chalcones, phenolic acids and tannins. The results demonstrate the insecticidal potential of leaves methanol and hexane extracts from P. communis as green insecticidal agents for the control of malarial vector, A. pharoensis.

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Phytochemical analysis of Spergula arvensis and evaluation of its larvicidal activity against malarial vector An.culicfiacies

South African Journal of Botany ◽

10.1016/j.sajb.2020.11.006 ◽

2021 ◽

Vol 137 ◽

pp. 351-358

Author(s):

Nisha Sogan ◽

Smriti Kala ◽

Neera Kapoor ◽

B.N Nagpal

Keyword(s):

Larvicidal Activity ◽

Phytochemical Analysis ◽

Malarial Vector

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Comparative evaluation of pear varieties (Pyrus communis l.) on immunity of generative organs to low temperature stress in the climate of Crimea

Proceedings of the Kuban State Agrarian University ◽

10.21515/1999-1703-67-241-245 ◽

2017 ◽

Vol 1 (67) ◽

pp. 241-245 ◽

Cited By ~ 1

Author(s):

Alexander Sotnik ◽

◽

Raisa Babina ◽

Pavel Khoruzhiy ◽

◽

...

Keyword(s):

Low Temperature ◽

Temperature Stress ◽

Comparative Evaluation ◽

Pyrus Communis ◽

Low Temperature Stress ◽

Pyrus Communis L ◽

Generative Organs

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Growing peculiarities for seedlings of pearrootstock forms (Pyrus communis L.) in the Crimea

Proceedings of the Kuban State Agrarian University ◽

10.21515/1999-1703-75-86-89 ◽

2018 ◽

Vol 1 (75) ◽

pp. 86-89

Author(s):

Yuriy Plugatar ◽

◽

Alexander Sotnik ◽

Valentina Tankevich ◽

◽

...

Keyword(s):

Pyrus Communis ◽

Pyrus Communis L ◽

The Crimea

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Molecular and biochemical differences underlying the efficacy of lovastatin in preventing the onset of superficial scald in a susceptible and resistant Pyrus communis L. cultivar

Postharvest Biology and Technology ◽

10.1016/j.postharvbio.2020.111435 ◽

2021 ◽

Vol 173 ◽

pp. 111435

Author(s):

Nicola Busatto ◽

Jordi Giné-Bordonaba ◽

Christian Larrigaudière ◽

Violeta Lindo-Garcia ◽

Brian Farneti ◽

...

Keyword(s):

Pyrus Communis ◽

Superficial Scald ◽

Pyrus Communis L

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Energy and exergy analyses of a mixed-mode solar dryer of pear slices (Pyrus communis L)

Energy ◽

10.1016/j.energy.2020.119740 ◽

2021 ◽

pp. 119740

Author(s):

López-Vidaña Erick César ◽

César-Munguía Ana Lilia ◽

García-Valladares Octavio ◽

Salgado Sandoval Orlando ◽

Domínguez Niño Alfredo

Keyword(s):

Mixed Mode ◽

Pyrus Communis ◽

Solar Dryer ◽

Pyrus Communis L ◽

Energy And Exergy ◽

Exergy Analyses

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Phytochemical Analysis, Pharmacological and Safety Evaluations of Halophytic Plant, Salsola cyclophylla

Molecules ◽

10.3390/molecules26082384 ◽

2021 ◽

Vol 26 (8) ◽

pp. 2384

Author(s):

Hamdoon A. Mohammed ◽

Mohsen S. Al-Omar ◽

Salman A. A. Mohammed ◽

Ahmad H. Alhowail ◽

Hussein M. Eldeeb ◽

...

Keyword(s):

Ethanolic Extract ◽

Phytochemical Analysis ◽

High Concentration ◽

Halophytic Plant ◽

Anti Oxidant ◽

Aqueous Ethanolic Extract ◽

Phytochemical Constituents ◽

Anti Inflammatory ◽

Dpph Scavenging ◽

Anti Inflammation

Salsola cyclophylla, an edible halophyte, is traditionally used for inflammation and pain. To confirm the claimed anti-inflammatory and analgesic properties, a detailed study on respective pharmacological actions was undertaken. The activities are contemplated to arise from its phytoconstituents. The LC-MS analysis of S. cyclophylla 95% aqueous-ethanolic extract revealed the presence of 52 compounds belonging to phenols, flavonoids, coumarins, and aliphatics class. A high concentration of Mn, Fe, and Zn was detected by atomic absorption spectroscopic analysis. The ethyl acetate extract showed the highest flavonoid contents (5.94 ± 0.04 mg/g, Quercetin Equivalents) and Fe2+-chelation (52%) potential with DPPH radicals-quenching IC50 at 1.35 ± 0.16 mg/mL, while the aqueous ethanolic extract exhibited maximum phenolics contents (136.08 ± 0.12 mg/g, gallic acid equivalents) with DPPH scavenging potential at IC50 0.615 ± 0.06 mg/mL. Aqueous ethanolic extract and standard quercetin DPPH radicals scavenging’s were equal potent at 10 mg/mL concentrations. The aqueous ethanolic extract showed highest analgesic effect with pain reduction rates 89.86% (p = 0.03), 87.50% (p < 0.01), and 99.66% (p = 0.0004) after 60, 90, and 120 min, respectively. Additionally, aqueous ethanolic extract exhibited the highest anti-inflammation capacity at 41.07% (p < 0.0001), 34.51% (p < 0.0001), and 24.82% (p < 0.0001) after 2, 3, and 6 h of extract’s administration, respectively. The phytochemical constituents, significant anti-oxidant potential, remarkable analgesic, and anti-inflammatory bioactivities of extracts supported the traditionally claimed anti-inflammatory and analgesic plant activities.

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