کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
231806 1427451 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Supercritical fluid extraction of vetiver roots: A study of SFE kinetics
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Supercritical fluid extraction of vetiver roots: A study of SFE kinetics
چکیده انگلیسی

The volatile oils from the Vetiveria zizanioides oil are particularly appreciated in perfume and cosmetic products but may also be used in the food industry as aroma and flavor agent. The objective of this work was to study the improvement over the conventional process on the quantity and quality of vetiver extracts recovered by supercritical technology (SFE). The pressure effect (100–300 bar) at 40 °C, and the influence of amount of ethanol used as cosolvent (0, 5 and 10%, v/v) were studied. Supercritical extraction process was compared to the hydrodistillation, based on vetiver extract quantity and quality; SFE extracts and presented khusimol contents of 14–29% over hydrodistillation and for SFE, the global yields and kinetic parameters obtained using 10% (v/v) of ethanol were statistically different from extraction using 0 and 5% of ethanol. The TLC and GC showed similar chemical profiles for SFE and HD, but were aware some compounds that were observed by TLC just during the tCER region. Mathematical modeling was performed for vetiver kinetics obtained by SFE + cosolvent and Sovová model showed the best adjusts for all curves.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 47, Issue 2, December 2008, Pages 200–208
نویسندگان
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