نتایج جستجو برای: microwave assisted hydrodistillation

تعداد نتایج: 176907  

2016
Mustafa Bener Mustafa Özyürek Kubilay Güçlü Reşat Apak

Turmeric (Curcuma longa L.) is a medicinal plant, and its biological activities mainly arise from the main constituent, known as diferuloylmethane or curcumin. In the present paper, microwave-assisted extraction (MAE) was investigated for the recovery of curcumin from turmeric in comparison to conventional heat-assisted extraction (CHAE) technique. Various experimental conditions, such as solve...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

glycerol mono-oleate (gmo) was produced by direct esterification reaction with amberlyst 16 resin catalysts with the efficiency of 86% and was used as a surfactant for synthesis of cofe2o4 nano-particles by surfactant-assisted microwave method. fourier transform infrared spectroscopy (ft-ir), x-ray diffraction (xrd) and scanning electron microscopy (sem) were used to consider the structural and...

Journal: :Journal of the American Chemical Society 2006
Shin-Hyun Kim Su Yeon Lee Gi-Ra Yi David J Pine Seung-Man Yang

Monodisperse aqueous emulsion droplets encapsulating colloidal particles were produced in the oil phase, and controlled microwave irradiation of the aqueous drop phase created spherical colloidal crystals by so-called evaporation-induced self-organization of the colloidal particles. Unlike usual colloidal crystals, colloidal crystals in spherical symmetry (or photonic balls) possessed photonic ...

2015
Ernest Ekow Abano Robert Sarpong Amoah

The effect of microwave and blanch pretreatments on the drying kinetics and quality of white yam (Dioscorea rotundata) was investigated. Yam cubes destined for hot air drying at temperatures 70-90°C were predried in a domestic microwave or blanched in hot water for 1-5 min. Microwave pretreatment time had a positive significant effect on drying rate but both pretreatments had a negative influen...

Journal: :Organic & biomolecular chemistry 2008
Lakshminath Sripada Jesse A Teske Alexander Deiters

A concise synthesis of phenanthridines via a microwave-assisted [2+2+2] cyclotrimerization reaction has been developed.

Journal: :فرآوری و نگهداری مواد غذایی 0
سمیه کوشش دانشگاه شیراز محمدتقی گلمکانی دانشگاه شیراز

abstractbackground and objective: microwave-assisted extraction (mae) is one of the novel, fast, and efficient methods for extraction of bioactive compounds. the aim of this study was optimization of mae of betalains from red beet (beta vulgaris) and evaluating antioxidant activity of its methanolic extract.materials and methods: the effects of independent variables namely, microwave power leve...

2015
Bo-Jhih Lin Wei-Hsin Chen

*Correspondence: Wei-Hsin Chen, Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan e-mail: [email protected] Pyrolysis is an important thermochemical method to convert biomass into bio-oil. In this study, the pyrolysis of sugarcane bagasse in a CO2 atmosphere under conventional and microwave-assisted heating is investigated to achieve CO2 utilizat...

2016
Mohamed Amine Ferhat Mohamed Nadjib Boukhatem Mohamed Hazzit Brahim Youcef Meklati Farid Chemat

Hydro-Distillation (HD), Cold Pressing (CP) and Microwave Clevenger or microwave Accelerated Distillation (MAD) methods have been compared and evaluated for their efficiency in the extraction of essential oil (EO) from fresh Citrus peels. EO from peel of 4 varieties of Algerian sweet orange (C. sinensis), Lemons (C. limon), Citrons (C. medica), sour orange (C. aurantium), grapefruits (C. paradi...

Journal: :Acta scientiarum polonorum. Technologia alimentaria 2014
Wei Liu Chun-Li Zhou Jing Zhao Dong Chen Quan-Hong Li

BACKGROUND 6-Gingerol is one of the most pharmacologically active and abundant components in ginger, which has a wide array of biochemical and pharmacologic activities. In recent years, the application of microwave-assisted extraction (MAE) for obtaining bioactive compounds from plant materials has shown tremendous research interest and potential. In this study, an efficient microwave-assisted ...

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