A variety of extraction procedures were evaluated for the extraction of arsenic and other analytes from lobster tissue samples using inductively coupled plasma mass spectrometry (ICP-MS) detection. Soxhlet, room temperature mixing, sonication, microwave assisted, supercritical carbon dioxide and subcritical water extractions were evaluated for a variety of solvent systems and optimum conditions...

The general need to slow the depletion of fossil resources and reduce carbon footprints has led to tremendous effort being invested in creating "greener" industrial processes and developing alternative means to produce fuels and synthesize platform chemicals. This work aims to design a microwave-assisted cascade process for a full biomass valorisation cycle. GVL (γ-valerolactone), a renewable g...

A rapid method of microwave-assisted extraction coupled with high-speed counter current chromatography and UV detector was established for the preparation of phytosterols from edible marine algae. Extraction conditions, namely microwave power, liquid/solid ratio, irradiation time and extraction temperature were optimized using orthogonal array design. The microwave-assisted extraction of Undari...

High yield and fast extraction performance ability with less solvent consumption and protection offered to thermo labile constituents are some of the attractive features of this new promising microwave-assisted extraction (MAE) technique. Therefore, MAE of gallic acid in the leaves of Eucalyptus x hybrida Maiden has been carried out and precise HPTLC method was developed for quantitative analys...

In this study, solvent-free and phase transfer catalysis conditions coupled with microwave irradiation and their advantages in synthesis of N-alkylation of primary anilines were reported. In this way two different microwave processing techniques were compared in terms of reaction yields. Consequently, microwave irradiation significantly reduced reaction times compared to traditional heating met...

Background & Aim:Nepeta racemosa is an herbal and medicinal plant and this report aims to   identify chemical compositions of the essential oils and volatiles of its   aerial parts through classical and advanced methods.  Experimental: Chemical profiles of the essential oils and volatile compounds from the aerial parts of Nepeta racemosa obtai...

An NMR analytical protocol is proposed to characterize saffron samples of different geographical origin (Greece, Spain, Hungary, Turkey and Italy). A microwave-assisted extraction procedure was developed to obtain a comparable recovery of metabolites with respect to the ISO specifications, reducing the solvent volume and the extraction time needed. Metabolite profiles of geographically differen...

An efficient and environmental-friendly extraction method has been developed for extraction of ursolic acid (UA) from Hedyotis diffusa by using subcritical water extraction (SWE). The experiments were carried out at different particle sizes (20–100 mesh), extraction temperature (120–200 ◦C), extraction time (10–50 min), solvent/solid ratio (20–40 mL/g), and extraction pressure (0.6–3.0 MPa). Re...

in this study, microwave-assisted solvent extraction (mase) was used to recover oil residues from pomace olive using acidic hexane. results obtained demonstrated that oil extraction yield increased with time, the amount of acetic acid in hexane and power radiation. for both radiation powers used (170 and 510w), the optimal extraction time and most interesting content of acetic acid in hexane ar...