نتایج جستجو برای: microwave assisted extraction

تعداد نتایج: 335500  

Journal: :Revista Virtual de Química 2014

2015
A. Hassani

Traditional hydrodistillation (HD), steam distillation extraction (SD), organic solvent extraction (SE), and microwave assisted hydrodistillation (MWHD) techniques were compared and evaluated for their effectiveness in the isolation of essential oil of Melissa officinalis from Algeria. The microwave assisted hydrodistillation technique was optimized in terms of both delivered power and time dur...

2011
Renata Wietecha-Posłuszny Aneta Garbacik Michał Woźniakiewicz Paweł Kościelniak

The objective of this research was to develop, optimize, and validate a modern, rapid method of preparation of human hair samples, using microwave irradiation, for analysis of eight tricyclic antidepressants (TCADs): nordoxepin, nortriptyline, imipramine, amitriptyline, doxepin, desipramine, clomipramine, and norclomipramine. It was based on simultaneous alkaline hair microwave-assisted hydroly...

Journal: :Molecules 2011
Ehsan Karimi Hawa Z E Jaafar

Microwave extraction of phytochemicals from medicinal plant materials has generated tremendous research interest and shown great potential. This research highlights the importance of microwave extraction in the analysis of flavonoids, isoflavonoid and phenolics and the antioxidant properties of extracts from three varieties of the Malaysian medicinal herb, Labisia pumila Benth. High and fast ex...

Journal: :Carbohydrate polymers 2013
Matteo Francavilla Antonio Pineda Carol S K Lin Massimo Franchi Pasquale Trotta Antonio A Romero Rafael Luque

Porous agar materials have been prepared from marine macroalgae species using a simple microwave-assisted extraction/drying methodology, providing a new family of polysaccharide derived porous solids. The microwave-assisted extraction allows a more efficient and less time-consuming extraction of the polysaccharide compared to conventional extraction protocols based on conventional heating. DRIF...

Farideh Tabatabaei Yazdi, Vahid Mosayebi

Microwave assisted extraction (MAE) tech-nique was employed for the extraction of pectin from black mulberry (Morus nigra) pomace in this research. The effects of process variables namely microwave power (300-900 watt), irradiation time (10-30 min) and liquid to solid ratio (15-30 mL/g) on the yield, degree of esterification (DE) and galacturonic acid content (GalA) of pectin were investigated ...

Farideh Tabatabaei Yazdi, Vahid Mosayebi

Microwave assisted extraction (MAE) tech-nique was employed for the extraction of pectin from black mulberry (Morus nigra) pomace in this research. The effects of process variables namely microwave power (300-900 watt), irradiation time (10-30 min) and liquid to solid ratio (15-30 mL/g) on the yield, degree of esterification (DE) and galacturonic acid content (GalA) of pectin were investigated ...

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