نتایج جستجو برای: solvent free microwave extraction

تعداد نتایج: 758549  

2017
Panagiotis Zoumpoulakis Vassilia J. Sinanoglou Eleni Siapi George Heropoulos Charalampos Proestos

Recently there is a great interest in using high energy techniques (HET) which involve microwave or ultrasound-assisted extraction (MAE and UAE) for isolation of natural bioactive compounds from plant foods. Such bioactive compounds are phenolics which were determined from sunflower (Helianthus annuus L.) kernels and hulls (defatted) utilising two different high energy extraction techniques, ul...

2012
S. Azadmard - Damirchi K. Alirezalu B. Fathi Achachlouei

Microwave energy is a superior alternative to several other thermal treatments. Extraction techniques are widely employed for the isolation of bioactive compounds and vegetable oils from oil seeds. Among the different and new available techniques, microwave pretreatment of seeds is a simple and desirable method for production of high quality vegetable oils. Microwave pretreatment for oil extrac...

Journal: :Bulletin of environmental contamination and toxicology 2015
Shanshan Di Shengchao Shi Peng Xu Jinling Diao Zhiqiang Zhou

Four commonly applied extraction techniques for organochlorine pesticides, microwave-assisted extraction (MAE), accelerated solvent extraction (ASE), quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction and ultrasonic solvent extraction, were applied on soil samples in order to evaluate their performances. The extracts were analyzed by GC-ECD and confirmed by GC-MS/MS. The MAE ...

Journal: :Jurnal kimia riset 2023

Indonesia has many diverse natural resources that still cannot be utilized optimally such as the extraction of essential oil from Cabbage Roses flowers (Rose × centifolia). This study compares amendments, time, and composition fresh rose obtained by Solvent-Free Microwave Extraction (SFME) method to those using Hydro-Distillation (MHD) method. Optimum conditions same amount raw material in this...

Journal: Journal of Herbal Drugs 2016

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...

Journal: :Acta scientiarum polonorum. Technologia alimentaria 2013
Madiha Manzoor Farooq Anwar Bushra Sultana Muhammad Mushtaq

BACKGROUND The present work was designed to appraise how different extraction solvents and techniques affect the extractability of antioxidant and antimicrobial components from Lantana camara (L. camard) flowers. MATERIAL AND METHODS Four extraction solvents including 100% methanol, 80% methanol, 100% ethanol and 80% ethanol coupled with three extraction techniques namely stirring, microwave-...

Journal: :Journal of separation science 2012
Heyuan Qiu Xiaohua Xiao Gongke Li

A method of microwave-assisted extraction coupled with high-speed counter-current chromatography was established for separation and purification of isopimpinellin, pimpinellin and phellopterin from Toddalia asiatica (L.) Lam. The conditions of MAE including the extraction solvent, size of sample, solid/liquid ratio, extraction temperature and extraction time were optimized by a mono-factor test...

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