Several fatty acid alkyl esters were subjected to accelerated methods of oxidation, including EN 14112 (Rancimat method) and pressurized differential scanning calorimetry (PDSC). Structural trends elucidated from both methods that improved oxidative stability included decreasing the number of double bonds, introduction of trans as opposed to cis unsaturation, location of unsaturation closer to ...

The main objective of this study was the screening of some selected aromatic plants very popular in Greece, with respect to their total phenolic content, antioxidant capacity, reducing activity, and oxidative stability. All plants were extracted with the conventional method, reflux with methanol. The essential oils of the plants were also analyzed for their antioxidant properties. The total phe...

Ethnobotanical investigations on local oilseed species in Burkina Faso revealed that oils from tree oilseeds are frequently used for food, cosmetics and traditional medicine by local people. To test the bio-preservative capacity, the effect of the oilseed extracts on the stabilization of Shea butter was evaluated. Levels of bioactive phyto-components were evaluated through several methods. Some...

Bioactive compounds extracted from natural sources can benefit human health. The aim of this work was to determine total phenolic content and antioxidant activity in extracts of Euphorbia tirucalli L. followed by identification and quantification of the phenolic compounds, as well as their antibacterial activities. Antioxidant activities were determined by DPPH and ABTS(•+) assay. Identificatio...

The oil of debittered and dehulled grains from two Andean lupins (Lupinus mutabilis) Peru, Andenes Común,was extracted by expeller press. extraction yield the proximal composition both varieties were assessed. cake, as well defatted flour variety with highest yield, werecharacterised for physico-chemical properties, total polyphenol content antioxidant capacity. shelf-life at 25 °C was extrapol...

Supercritical extraction was employed to produce rosemary (Rosmarinus officinalis L.) extracts with different composition and antioxidant activity. CO₂ was utilized as supercritical solvent and diverse extraction conditions (temperature, pressure, amount of cosolvent and fractionation scheme) were applied. The extracts with higher antioxidant content were selected to study their capability as n...

Industrial processes that apply high temperatures in the presence of oxygen may compromise the stability of conjugated linoleic acid (CLA) bioactive isomers. Statistical techniques are used in this study to model and predict, on a laboratory scale, the oxidative behaviour of oil with high CLA content, controlling the limiting factors of food processing. This modelling aims to estimate the impac...

The purpose of the present study was to examine the physico-chemical characteristics of Moringa oleifera seeds and seed oil from a wild provenance of Pakistan. The Moringa seeds harvested from the forests of Kohat district of NWFP exhibited an oil yield of 34.80%. Protein, fiber, moisture and ash contents were 31.65, 7.54, 8.90 and 6.53%, respectively. The extracted M. oleifera seed oil reveale...

The effects of enzyme-assisted cold-pressing (EACP) on the physicochemical attributes of Cannabis sativa (hemp) seed oil were investigated using five enzyme preparations: Protex 7L, Viscozyme L, Kemzyme, Feedzyme, and Natuzyme. The oil contents (28.4–32.8%) offered by the enzyme-treated hempseeds were found to be significantly (p ,0.05) higher than that determined for the control (26.7%). The p...