Influence of diffuse and chronic metal pollution in water and sediments on edible seafoods within Ondo oil-polluted coastal region, Nigeria.

The bioconcentration levels of 3 non-essential elements (Pb, Cd and Ni) have been investigated in three different seafoods; Fish (Tilapia zilli), Crab (Callinectes sapidus) and periwinkle (Littorina littorea), to investigate the ecosystem health status in Ondo oil-polluted coastal region, Nigeria. The seafood samples were chosen based on their popularity as a food source and the potential of the species to contain high levels of metals based on past research results. Metal concentrations in the biota showed marked interspecific differences with C.

Essential oil composition and insecticidal activity of Blumea perrottetiana growing in southwestern Nigeria.

The essential oil from the aerial parts of Blumea perrottetiana was obtained by hydrodistillation and analyzed by GC-MS. The volatile oil is dominated by 2,5-dimethoxy-p-cymene (30.0%) and 1,8-cineole (11.

The effect of essential oil formulations for potato sprout suppression.

The concerns over safety and environmental impact of synthetic pesticides such as chlorpropham (CIPC) has stimulated interest in finding environmentally benign, natural sprout suppressants, including essential oils. The effects of Chenopodium ambrosioides and Lippia multiflora essential oils on sprout growth and decay of stored potatoes has been investigated. Formulations of essential oils with alumina, bentonite, or kaolin, both with and without Triton X-100 additive, were tested.

Surveillance and source diagnostic investigation of hydrocarbon residues in sediments.

The nature and seasonal distribution of hydrocarbons were studied in Ondo coastal region in Western Nigeria. The petroleum hydrocarbons were screened by gas chromatography with flame ionization detector (GC/FID) and gas chromatography-mass spectrometry (GC-MS). Complex series of compounds were identified.

Volatile constituents and antibacterial screening of the essential oil of Chenopodium ambrosioides L. growing in Nigeria.

The essential oil of the aerial parts of Chenopodium ambrosioides L. has been isolated by hydrodistillation and analyzed using GC-MS. The major components were found to be alpha-terpinene (63.