کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
4914576 1362626 2018 5 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Concentration of Ruta graveolens active compounds using SC-CO2 extraction coupled with fractional separation
کلمات کلیدی
Ruta graveolens; Supercritical fluid extraction; Fractional separation;
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Concentration of Ruta graveolens active compounds using SC-CO2 extraction coupled with fractional separation
چکیده انگلیسی

•SC-CO2 extraction coupled with fractional separation has been used.•250 bar, 40 °C were the optimized extraction conditions.•The extraction process was faster when R. graveolens particle size was smaller.•Fractional separation allowed the selective elimination of cuticular waxes.

Supercritical CO2 (SC-CO2) extraction coupled with fractional separation of the extracts, has been used to concentrate the active principles of Ruta graveolens. Using 250 bar, 40 °C for the extraction process and cooling the first separator to −10 °C, an efficient extraction and fractionation was obtained. Different particle sizes of the vegetable matter were tested (from 0.20 to 0.80 mm); they indicated that the extraction process was faster when particle size was smaller; i.e., internal mass transfer controlled the process. Fractional separation allowed the selective elimination of cuticular waxes, that represented about 78% w/w of the total extract produced by SC-CO2 processing. The extract collected in the second separator was concentrated in active compounds up to 87% w/w. For comparison purposes, extraction was also performed using an organic solvent: the extract obtained using ethyl-acetate, contained low percentages of active compounds, mainly due to the co-extraction of large quantities of waxes.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 131, January 2018, Pages 82-86
نویسندگان
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