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Titre: | Acaricidal activity of flavonoids extract of Borago officinalis L. (Boraginaceae) against brown dog tick, Rhipicephalus sanguineus (Latreille, 1806) |
Auteur(s): | EL Haddad, Djillali Bitam, I. Bouchenak, Ouahiba Toubal, S. Yahiaoui, Karima Arab, K. Boumaza, S. |
Mots-clés: | Acaricidal activity Boraginaceae Rhipicephalus sanguineus |
Date de publication: | 2018 |
Editeur: | Tropical Biomedicine |
Collection/Numéro: | ;PP. 383–391 |
Résumé: | Borago officinalis L. (Boraginaceae) is a plant of the Boraginaceae family, used in
Algeria for food and medicinal purposes. This study reports the effect of flavonoids extracted
from the aerial part of Borago officinalis L. (Boraginaceae) on the larvae and engorged adult
females of the brown dog tick Rhipicephalus sanguineus (Latreille, 1806) using adults
immersion test (AIT) and larval immersion test (LIT). For this purpose, the larvae and engorged
female of Rhipicephalus sanguineus (Latreille, 1806) were exposed to serial dilutions of
flavonoids extract (50 mg/ml, 25 mg/ml, 12.5 mg/ml and 6.25 mg/ml) using “dipping method”
in vitro. The plant extract was obtained by fractionation using appropriate solvents. The
extraction yield is 22% with a flavonoids concentration equal to 129.12 μg equivalent of
quercetin/ml of the extract. The chromatographic analysis by high performance thin layer
chromatography (HPTLC) reveals the presence of gallic acid, vanillic acid, kaempferol,
dihydroxybenzoic and quercetin. The results obtained show that the flavonoids extract of
Borago officunalis L. (Boraginaceae) considerably reduces the oviposition and the hatching
rate of the eggs of Rhipicephalus sanguineus (Latreille, 1806) and was shown to be toxic
against newly hatched larvae of Rhipicephalus sanguineus (Latreille, 1806) (P < 0.05) |
URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/5357 |
ISSN: | 0127-5720 |
Collection(s) : | Publications Internationales
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