background & aim: essential oils are isolated from different sections of plants such as flowers, seeds, leaves, stems and roots. essential oils are applied extensively in producing of perfumes, cosmetics, foods, beverages and confectioneries and as ingredients of disinfectants and insecticides. experimental: essential oil are obtained by several isolation methods, such as hydrodistillation ...

abstract: in this study, an analytical method is developed to determine 15 polycyclic aromatic hydrocarbons (pahs) in olive and refined pomace olive oils using hplc coupled with a fluorescence detector. the standardised method of ultrasound-assisted solvent extraction consisted of liquid–liquid extraction with organic solvent and purification on c18 and florisil bonded-phase cartridges was modi...

ABSTRACT: In this study, an analytical method is developed to determine 15 polycyclic aromatic hydrocarbons (PAHs) in olive and refined pomace olive oils using HPLC coupled with a fluorescence detector. The standardised method of ultrasound-assisted solvent extraction consisted of liquid–liquid extraction with organic solvent and purification on C18 and Florisil bonded-phase cartridges was modi...

This study aims at determining the potentials of cinnamon (Cinnamomun burmannii) extracts to improve health-promoting properties white chocolate. LC-HRMS analysis was employed obtain information regarding phytochemical content while phosphomolybdenum, FRAP and DPPH assays were used determine antioxidant activity extract. Furthermore, extract loaded into nanoparticles before adding it The result...

A flow-through ultrasonic separator constructed entirely from PMMA has been demonstrated for the first time. Continuous extraction of lipids from milk has been achieved. Construction is simple, requiring channels to be embossed at low temperatures (120°C) with a room temperature solvent bond used to close the channel.

In this paper, the polyphenol content and antioxidant activity of fig leaf extracts were analyzed. Extraction was performed with methanol, ethanol, acetone their aqueous mixtures (50:50 v/v). Extractions stirring at 300 rpm on a vibromix ultrasonic bath for 15 minutes. The determined spectrophotometrically using Folin-Ciocalteu test. Antioxidant capacity tested FRAP DPPH methods. results showed...

In the present work, optimization of pectinase-assisted and tri-solvent-mediated extraction of lycopene from waste tomato peels was carried out. The optimized parameters for enzymatic pre-treatment were 2% pectinase concentration, pH 5.5, 4-h incubation, 45 °C and 150 rpm. Maximum recovery of lycopene from tomato peels using optimized tri-solvent extraction was achieved at 45 °C, 120-min incuba...

Diazinon is an organophosphorus insecticide (OPP) that is used as a pesticide for Chilo suppressalis (WLK) (Lep., Pyralidae) in rice fields. The extraction of diazinon from soil and the stems of rice plants has been carried out by microwave-assisted extraction (MAE) and the results compared with ultrasonic extraction (USE). The best parameters for MAE are hexane-acetone (8:2 v/v) as a solvent, ...