There is a great demand for developing efficient extraction methods in order to reduce extraction time and increase the yield and activity of functional antioxidants. The yields, activities, and extraction kinetics of antioxidants from the dry peel of pomegranate marc were studied using ultrasound-assisted extraction in continuous and pulsed modes and the results were compared with conventional...

Ionic liquid based, ultrasound-assisted extraction was successfully applied to the extraction of phenolcarboxylic acids, carnosic acid and rosmarinic acid, from Rosmarinus officinalis. Eight ionic liquids, with different cations and anions, were investigated in this work and [C(8)mim]Br was selected as the optimal solvent. Ultrasound extraction parameters, including soaking time, solid-liquid r...

ultrasound-assisted extraction was used to determine the optimum processing conditions and to achieve the maximum extraction yield and viscosity of the gum extracted from quince seed. using response surface methodology (rsm) to design the experiments and adopting the central composite rotatable design (ccrd), the effect of extraction temperature (25-55°c), time (3-10 minutes), and ph (6-8) were...

In the present study, basil (Ocimum basilicum L.) and lovage (Levisticum officinale Koch.) extracts were obtained using maceration, ultrasound- microwave-assisted extractions (UAE MAE, respectively). Varying different extraction solvents, including water, methanol, acetone, ethyl acetate, analyses of total polyphenol flavonoid contents (TPC TFC, respectively), as well antioxidant properties (DP...

This study aimed at examining the effect of supercritical carbon dioxide (ScCO2) extraction on subsequent Viola odorata polar bioactive components. The raw material was firs submitted to ScCO2 for lipophilic fraction. Then exhausted subjected ultrasound-assisted (UAE) and microwave-assisted (MAE) in order extract performed under pressure 300 bar a temperature 40 °C 4 hours. In see ScCO2, UAE MA...

Microwave-assisted extraction (MAE) of agar from Gracilaria vermiculophylla, produced in an integrated multitrophic aquaculture (IMTA) system, from Ria de Aveiro (northwestern Portugal), was tested and optimized using response surface methodology. The influence of the MAE operational parameters (extraction time, temperature, solvent volume and stirring speed) on the physical and chemical proper...

Propolis was used as medicine, cosmetic and beverage additives since past decades. The most important active compounds in the propolis are phenolic and flavonoids, which are in the resin category. The purpose of this study was to measure the total amount of flavonoids and quercetin in propolis of northern Iran and compare obtain data with different extraction methods. The soxhlet, maceration an...

Microwave-assisted and ultrasound-assisted extraction assays were used to isolate total flavonoids (TF) from Osmanthus fragrans flowers. The effects of the solid-liquid ratio, ethanol concentration, microwave power, microwave extraction time, ultrasonic power and ultrasonic extraction time on the yield of TF were studied. A sequential combination of microwave- and ultrasound-assisted extraction...

Microwave assisted extraction (MAE) was investigated for the of total saponins compounds from starfish Echinaster sepositus. In order to achieve optimization microwave and determine influence each operational variable (the solvent concentration (X1), irradiation time (X2), power (X3), liquid-solid ratio (X4)) on saponins, response surface methodology (RSM) coupled with a Box–Behnken design (BBD...