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Larvicidal and Nematicidal Activities of the Leaf Essential Oil of Croton regelianus
Author(s) -
Torres Maria Conceição M.,
Assunção João Carlos,
Santiago Gilvandete Maria P.,
AndradeNeto Manoel,
Silveira Edilberto R.,
CostaLotufo Leticia V.,
Bezerra Daniel P.,
Filho José Delano B. Marinho,
Viana Francisco Arnaldo,
Pessoa Otília Deusdênia L.
Publication year - 2008
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.200890227
Subject(s) - chemistry , essential oil , camphor , meloidogyne incognita , aedes aegypti , chemical composition , bioassay , monoterpene , croton , botany , traditional medicine , larva , food science , nematode , biology , organic chemistry , ecology , medicine
The chemical composition of the leaf essential oil of Croton regelianus collected from wild plants growing in two different sites at Ceará State (Brazil) was analyzed by GC/MS and GC‐FID. Twenty monoterpenoids, representing more than 96% of the chemical composition of the oils, were identified and quantified. The oils showed similar chemical composition but considerable variation in the levels of each constituent. Ascaridole (33.9–17.0%), p ‐cymene (22.3–21.6%), and camphor (13.0–3.1%) were the predominant constituents. The monoterpene ascaridole was isolated and characterized by spectroscopic data. The essential oils and the isolated compounds were tested against Aedes aegypti and Artemia sp. larvae, and the root knot nematode Meloidogyne incognita. The bioassay results show that the essential oil of C. regelianus and ascaridole were moderately active against the M. incognita , but strongly effective against both A. aegypti and Artemia sp. larvae.