The B-strain of Bemisia tabaci Gennadius is a key pest of several crops and chemical control is the main control method used by growers, although reduction in efficacy due to insecticide resistance has already been reported. The aim of this work was to investigate the insecticidal effect of an array of synthetic sucrose esters with the aliphatic and aromatic groups on whitefly adults. Sucrose b...

In previous reports from this laboratory [ 1,2] we have shown that in guinea pig liver mitochondria there is a competition for energy between PEP and citrulline synthesis. Fatty acids are known to affect the intramitochondrial PEP* formation. Octanoate has been found to inhibit PEP production [3,4], while oleate results in a stimulation of this process [5,6] . In the present investigation the e...

1. The oxidation of butyrate, hexanoate and octanoate by rat-liver mitochondria suspended in a tris-potassium chloride medium in the presence of malate and serum albumin has been investigated. 2. The oxidation of butyrate to acetoacetate was markedly decreased by the addition of a system competitive for ATP (hexokinase-glucose). 3. Serum albumin or tricarboxylic acid-cycle intermediates prevent...

1. The factors concerned in the estimation of P/O ratios when fatty acids are oxidized by rat-liver mitochondria have been assessed. 2. The oxidation of butyrate, hexanoate and octanoate is accompanied by ATP synthesis. At low concentrations of the fatty acids, P/O ratios approximately 2.5 are obtained. 3. Oxidative phosphorylation is uncoupled, respiratory control ratios are lowered and respir...

ruthenium dioxide nanoparticles (ruo2 ) with an average particle size of 50 nm are readily synthesized from rucl3.xh2o via the precipitation process in the presence of in-situ sodium octanoate as anionic surfactant. the phase composition, morphology, lattice parameters and size of nanoparticles in these products are characterized by fourier transform infrared spectroscopy (ft-ir), x-ray diffrac...

Interest in the synthesis and application of thymol esters has increased recent years due to numerous applications associated with its biological activities. The enzymatic octanoate by esterification octanoic acid was explored using soluble lipases immobilized lipase biocatalysts solvent-free systems. Candida antarctica B form most active biocatalyst for this reaction. Different feeding strateg...

1. The rates of formation of acetoacetate and beta-hydroxybutyrate by the isolated perfused rat liver were measured under various conditions. 2. The rates found after addition of butyrate, octanoate, oleate and linoleate were about 100mumoles/hr./g. wet wt. in the liver of starved rats. These rates are much higher than those found with rat liver slices. 3. The differences between the rates give...

Introduction Tuta absoluta is currently considered one of the most devastating invasive pests solanaceous plants worldwide, causing severe damage to tomato industry. Insects use volatile organic compounds (VOCs) locate host plant for feeding and oviposition. Those VOCs could be developed as lures pest monitoring control. Methods In this study, differentially accumulated between preferred (tomat...

The data given below relates to the research paper entitled: "Eco-friendly films prepared from plantain flour/PCL blends under reactive extrusion conditions using zirconium octanoate as a catalyst", recently published by our research group [1]. This article provides information concerning the physicochemical properties of the above-mentioned film systems: thickness, density, opacity, moisture c...