نتایج جستجو برای: microwave assisted approach

تعداد نتایج: 1448043  

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...

2015

Jatropha curcas has a variety of uses which are of great economic significance. Jatropha oil can be used as fuel alternative and for making biodiesel that is supposed to overcome the source limitation problem. In this study, conventional, ultrasound assisted and microwave pretreatment solid liquid extraction of Jatropha seed were studied in terms of amount and quality of the extracted oil. The ...

Journal: :Food technology and biotechnology 2016
Magdalena Montowska Edward Pospiech

New approaches to rapid examination of proteins and peptides in complex food matrices are of great interest to the community of food scientists. The aim of the study is to examine the influence of microwave irradiation on the acceleration of enzymatic cleavage and enzymatic digestion of denatured proteins in cooked meat of five species (cattle, horse, pig, chicken and turkey) and processed meat...

2015
Vrushali M. Kulkarni Virendra K. Rathod

This work reports a novel approach where three phase partitioning (TPP) was combined with microwave for extraction of mangiferin from leaves of Mangifera indica. Soxhlet extraction was used as reference method, which yielded 57 mg/g in 5 h. Under optimal conditions such as microwave irradiation time 5 min, ammonium sulphate concentration 40% w/v, power 272 W, solute to solvent ratio 1:20, slurr...

Journal: :فرآوری و نگهداری مواد غذایی 0
رویا شکاری باشگاه پژوهشگران جوان دانشگاه آزاد اسلامی، واحد ورامین، پیشوا، گروه صنایع غذایی، ورامین کرامت اله رضایی گروه علوم و مهندسی صنایع غذایی، دانشگاه تهران سیمین اسدالهی گروه صنایع غذایی، دانشگاه آزاداسلامی، واحد ورامین

in this research, microwave-assisted hydrodistillation (md) with pretreatment ultrasound (us) 45 and 90 min of essential oils from fresh aegle marmelos peel were used and the results were compared with those obtained by hydrodistillation technique (hd) in terms of extraction yield/efficiency, extraction time, chemical composition and quality of the essential oil. all experiments were performed ...

2010
Ethan K. Murphy Vadim V. Yakovlev

Upgrade of successful processes of microwave-assisted organic synthesis to the level of industrial technologies is currently slowed down by difficulties in experimental development of large-scale and high-productive reactors. This paper proposes to address this issue by developing microwave chemistry reactors as microwave systems rather than black-box-type units for chemical reactions. We sugge...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
akram arianfar fakhri shahidi rasoul kadkhodayi mahdi varidi

introduction: tea (camellia sinensis), is the most widely beverage after water across the world. the most important chemical composition in tea is phenolic compounds (catechins) that have antioxidant and anticarcinogenic properties and are benefited for cardiovascular disease. there are two major kinds of tea, black tea and green tea. green tea, is originated in china and dates back to several ...

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