نتایج جستجو برای: microwave assisted hydrodistillation

تعداد نتایج: 176907  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1999
m. majid heravi dariush ajami a.masoud noushabadi

in an environmentally benign solventless system, alcohols are rapidly oxidized to carbonyl compounds using hexamethylenetetramine-bromine on wet alumina under microwave irradiation.

Journal: :Trends in Food Science and Technology 2022

Lipids are increasingly attractive in the food industry, resulting an increasing demand for lipids from edible and non-edible sources. Conventional solvent extraction has drawbacks of low efficiency, long time, large consumption, it can negatively impact lipid quality such as oxidation due to time high temperature. Ultrasound-assisted (UAE) overcome these shortcomings received more attention. W...

2003
S. Ravichandran

Microwave radiation, an electromagnetic radiation, is widely use as a source of heating in organic synthesis. The basic mechanisms observed in microwave assisted synthesis are dipolar polarization and conduction. Microwave assisted organic synthesis (MAOS) has emerged as a new “lead” in organic synthesis. The technique offers simple, clean, fast, efficient, and economic for the synthesis of a l...

2012
Baya Berka-Zougali Mohamed-Amine Ferhat Aicha Hassani Farid Chemat Karim S. Allaf

Two different extraction methods were used for a comparative study of algerian myrtle leaf essential oils: solvent-free-microwave-extraction (SFME) and conventional hydrodistillation (HD). Essential oils analyzed by GC and GC-MS presented 51 components constituting 97.71 and 97.39% of the total oils, respectively. Solvent-Free-Microwave-Extract Essential oils SFME-EO were richer in oxygenated c...

2013
Vivek K. Bajpai Ajay Sharma Sung Hong Kim Kwang-Hyun Baek

Reactive oxygen species and free radicals play a major role in food deterioration. Current research is directed towards finding naturally occurring antioxidants of plant origin. In the present study, the chemical composition analysis of the essential oil obtained from sawdust of Chamaecyparis obtusa (COEO) was conducted by gas chromatography coupled with mass spectroscopy (GC-MS). Further, the ...

Journal: :Innovative Food Science & Emerging Technologies 2016

Journal: :journal of agricultural science and technology 2012
l. momenzadeh a. zomorodian d. mowla

drying characteristics of green pea (pisum satium) with an initial moisture content of 76% (db) was studied in a fluidized bed dryer assisted by microwave heating. four drying air temperatures (30, 40, 50 and 60ºc) and five microwave powers (180, 360, 540, 720 and 900w) were adopted. several experiments were conducted to obtain data for sample moisture content versus drying time. the results sh...

2003
Magnus Ericsson Jonas Rutberg

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 LIST OF PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 APPLICATIONS . . . . . . . . . ....

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