The rising global demand for palm oil and its associated products has led to increased numbers of palm oil refineries with its attendant effluent discharge. Many researches have confirmed the ecological disruptive potentiality of Palm Oil Mill Effluent (POME), still further attention has to be directed at POME’s potential genotoxicity. The present study has made physico-chemical and genotoxicit...

Antimicrobial activity of different concentrations (50, 100, 200, 300 and 500ml/l) of essential oil extracts of three type of onions (green, yellow and red) and garlic against two bacteria, Staphylococcus aureus, Salmomella Enteritidis, and three fungi, Aspergillus niger, Penicillium cyclopium and Fusarium oxysporum, was investigated. The essential oil (EO) extracts of these Allium plants (garl...

A micro-cage bioassay was developed to test the effect of slash pine pollen (Pinus elliottii Engelm.) supplementation to a whole onion plant (Allium cepa L. variety Pegasus) diet on thrips (Thysanoptera: Thripidae) reproductive parameters. Frankliniella fusca (Hinds) females were placed on two to three-leaf stage onion seedling under a treatment of either slash pine (Pinus elliottii Engelm.) po...

Food preservatives are unswervingly being used for prolonging the shelf life of food, often to increase aroma, taste and quality by food packaging industry. These pivotal in protecting from degradation deterioration micro-organisms. Two most commonly preservatives, viz. sodium nitrite (NaNO2) Monosodium glutamate (MSG) have been evaluated using root tips Allium cepa. Cytological studies plants ...

In this survey the effect of water extract of Teucrium pilosum on mitosis of Allium cepa was studied. Teucrium pilosum is a perrenial plant, not grazed by animals and its extract is used natively against constipation and as antispasmotic. Results and discussion Table 1 shows that the extract affected the mitotic index, percentage of phases and percentage of abnormal cells. Inhibition of mitotic...

This study comprises the optimization and validation of a new TLC method for determination of flavonols in the bulbs of seven cultivars of onions and shallots. Separation was performed on RP-18 plates with the solvent mixture tetrahydrofuran/water/formic acid (40+60+6, V/V/V) as a mobile phase. The method was evaluated for precision, linearity, LOD, LOQ, accuracy and robustness. Chromatographic...