نتایج جستجو برای: microwave assisted hydrodistillation (mahd)

تعداد نتایج: 176918  

Journal: :Molecules 2010
Hong-Wu Wang Yan-Qing Liu Shou-Lian Wei Zi-Jun Yan Kuan Lu

Microwave-assisted hydrodistillation (MAHD) is an advanced hydrodistillation (HD) technique, in which a microwave oven is used in the extraction process. MAHD and HD methods have been compared and evaluated for their effectiveness in the isolation of essential oils from fresh mango (Mangifera indica L.) flowers. MAHD offers important advantages over HD in terms of energy savings and extraction ...

Journal: :journal of chemical health risks 0
s. mollasalehi ms student, department of agriculture, damghan branch, islamic azad university, damghan, iran b. kashefi assistant professor, department of agriculture, damghan branch, islamic azad university, damghan, iran h. hashemi-moghaddam assistant professor, department of chemistry, damghan branch, islamic azad university, damghan, iran

microwave-assisted hydrodistillation (mahd) method has been compared with hydrodistillation (hd) conventional technique for extraction of essential oil from achillea millefolium. microwave-assisted hydrodistillation were examined at three levels of microwave powers (300, 500, and 700 w) .   obtained results show that   mahd offers important advantages over hd in terms of energy savings and extr...

2015
Mohammad‐Taghi Golmakani Mahsa Moayyedi

Dried and fresh peels of Citrus limon were subjected to microwave-assisted hydrodistillation (MAHD) and solvent-free microwave extraction (SFME), respectively. A comparison was made between MAHD and SFME with the conventional hydrodistillation (HD) method in terms of extraction kinetic, chemical composition, and antioxidant activity. Higher yield results from higher extraction rates by microwav...

2011
Shila Rezvanpanah Karamatollah Rezaei Mohammad-Taghi Golmakani Seyyed Hadi Razavi

Antibacterial properties and chemical characterization of the essential oils from summer savory (Satureja hortensis) extracted by microwave-assisted hydrodistillation (MAHD) were compared with those of the essential oils extracted using the traditional hydrodistillation (HD) method. While MAHD at 660 W required half as much time as HD needed, similar antibacterial efficacies were found from the...

Mehran Moradalizadeh, Naghmeh Samadi Peyman Rajaei

The genus Haplophyllum, which belongs to the Rutaceae family, includes 18 species in Iran. In this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of Haplophyllum robustum Bge. were extracted by three different isolation techniques, conventional hydrodistillation (HD), microwave-assisted hydrodistillati...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
mohsen gavahian reza farhoosh asgar farahnaky katayoun javidnia fakhri shahidi

as traditional extraction methods like hydrodistillation (hd) and steamdistillation (sd) have long extraction times, some novel extraction methods like microwave-assisted hydrodistillation (mahd) and ohmic-assisted hydrodistillation (oahd) are recently introduced. in this study, essential oils of mentha piperita were extracted by oahd and mahd and the results were compared with those of the sd ...

Journal: :international journal of advanced biological and biomedical research 2013
mehran moradalizadeh naghmeh samadi peyman rajaei

the genus haplophyllum, which belongs to the rutaceae family, includes 18 species in iran. in this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of haplophyllum robustum bge. were extracted by three different isolation techniques, conventional hydrodistillation (hd), microwave-assisted hydrodistillation (mahd) and solv...

Journal: :journal of agricultural science and technology 2012
s. mazidi k. rezaei m. t. golmakani a. sharifan sh. rezazadeh

microwave-assisted hydrodistillation (mahd) at three levels of microwave power (180, 360, and 540 w) and the traditional hydrodistillation (hd) were applied to obtain essential oils from bunium persicum boiss. (black zira). mahd at 540 w started much earlier than that of hd (4 min vs. 38 min, respectively). by the time the extraction of essential oils started with hd, almost 50% of the total es...

Mehran Moradalizadeh, Naghmeh Samadi Peyman Rajaei

The genus Haplophyllum, which belongs to the Rutaceae family, includes 18 species in Iran. In this study, after collecting plant material, botanical identification and suitable drying, the essential oils from aerial parts of Haplophyllum robustum Bge. were extracted by three different isolation techniques, conventional hydrodistillation (HD), microwave-assisted hydrodistillati...

2013
Deepak Gupta Mumtaj Shah

Microwave-assisted hydro distillation MAHD of eucalyptus citriodora. oil was investigated and a comparison was made with conventional hydro distillation. For MAHD, three process parameters; Microwave power, Extraction time and duration of dryness of sample were selected for the extraction. MAHD resulted in a shorter extraction time and better quality of oil compared to that in conventional hydr...

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