Chemical Constituents and Activity of Murraya microphylla Essential Oil against Lasioderma serricorne.
Nat Prod Commun
; 10(9): 1635-8, 2015 Sep.
Article
em En
| MEDLINE
| ID: mdl-26594776
ABSTRACT
The chemical composition, contact and repellent activities of the essential oil from Murraya microphylla branches and leaves against Lasioderma serricorne adults were determined and six compounds from the essential oil were isolated as well. The essential oil of M microphylla obtained by hydrodistillation was analyzed by gas chromatography-mass spectrometric (GC-MS) analysis; 22 compounds were identified. The main constituents of the essential oil included ß-caryophyllene (18.0%), α-pinene (13.8%), spathulenol (9.5%), α-humulene (6.0%), γ-elemene (5.1%) and zingiberene (4.6%), followed by α-cadinol (3.9%) and caryophyllene oxide (3.8%). Six of these compounds were isolated and fully identified as α-pinene, ß-caryophyllene, α-humulene, caryophyllene oxide, spathulenol and α-cadinol. L. serricorne adults had different sensitivities to the crude essential oil and isolated compounds. α-Humulene exhibited the strongest contact activity against L. serricorne, showing an LD50 value of 13.1 µg adult(-1). However, spathulenol, the crude essential oil and α-cadinol showed stronger contact activity against L. serricorne than caryophyllene oxide and ß-caryophyllene. The essential oil, α-humulene and spathulenol showed comparable repellency against L. serricorne adults at 2 h after exposure, relative to the positive control, DEET. The results demonstrate that the essential oil and isolated compounds exhibited important contact and repellent activities against L. serricorne. Thus, they could become potential natural insecticides or repellents for control of insects in stored products.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Besouros
/
Óleos de Plantas
/
Óleos Voláteis
/
Murraya
/
Repelentes de Insetos
/
Inseticidas
Limite:
Animals
Idioma:
En
Revista:
Nat Prod Commun
Assunto da revista:
BOTANICA
/
FARMACOLOGIA
/
QUIMICA
Ano de publicação:
2015
Tipo de documento:
Article