Composition and biological potential of essential oil from Thelechitonia trilobata growing in South Africa.
Thelechitonia trilobata is regarded as a troublesome weed that grows to form a dense blanket over the soil preventing the growth of other crops in farmland. Although the plant is regarded as a notorious, invasive plant, its chemical composition and biological potential have not been reported. The essential oil was isolated from the fresh leaves of T. trilobata using hydrodistillation. alpha-Pinene (21.6%), alpha-phellendrene (21.0%), limonene (12.8%) and germacrene D (7.5%) were the major constituents of the oil. The essential oil was screened against agricultural pests. The anti-tick properties were tested on Ripicephalus e. ervertsi found on sheep, while repellency, fumigation, and contact toxicity tests were carried out with maize weevils. Except for the contact toxicity test, all other bioassays gave positive results.
Department of Chemistry, Geology and Physics, Elizabeth City State University, Elizabeth City, NC 27909, USA.
Jamie
J
Peebles
Ephraim
E
Gwebu
Opeoluwa
O
Oyedeji
Sarah
S
Nanyonga
Nokuthula
N
Kunene
David
D
Jackson
William
W
Setzer
Adebola
A
Oyedeji
D000818:Animals; D019659:Asteraceae / Q000737:chemistry*; D000081008:Bicyclic Monoterpenes; D053138:Cyclohexenes / Q000032:analysis; D005651:Fumigation; D007302:Insect Repellents / Q000494:pharmacology; D007313:Insecta; D000077222:Limonene; D039821:Monoterpenes / Q000032:analysis; D009822:Oils, Volatile / Q000032:analysis* / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D045788:Sesquiterpenes, Germacrane / Q000032:analysis; D013019:South Africa; D013729:Terpenes / Q000032:analysis
D000081008:Bicyclic Monoterpenes; D053138:Cyclohexenes; D007302:Insect Repellents; D039821:Monoterpenes; D009822:Oils, Volatile; D045788:Sesquiterpenes, Germacrane; D013729:Terpenes; D000077222:Limonene; C005451:alpha-pinene; C027259:germacrene D