کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
642681 884330 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of microwave, ultra-sonic and supercritical carbon dioxide assisted extraction techniques for curcumin from Curcuma longa
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Optimization of microwave, ultra-sonic and supercritical carbon dioxide assisted extraction techniques for curcumin from Curcuma longa
چکیده انگلیسی

A bio-active phytochemical, curcumin, was isolated from dried rhizomes of Curcuma longa using Soxhlet, microwave, ultra-sonic and supercritical carbon dioxide assisted extraction techniques. The quantification of curcumin in resultant extracts was performed using pre-validated HPLC methodology. The critical parameters viz. effect of pre-irradiation and soaking solvent on the curcumin yield were studied. The extraction efficiency of all the above described techniques was established in terms of percent curcumin yields and extraction rate constants. Prior to extraction, microwave and ultra-sonic irradiation of dry curcuma powder resulted in 68.57 and 40.00% curcumin yield, respectively, whereas water soaked irradiated curcuma powder yielded 90.47 and 71.42% curcumin recovery respectively, during a total extraction period of five minutes. The maximum extraction rate constant of 47.49 × 10−2 min−1 was observed when using microwave assisted acetone extract of water soaked curcuma rhizomes. The comparison of Soxhlet, microwave, ultra-sonic and supercritical carbon dioxide assisted extraction in terms of percent yield and required extraction period showed that microwave assisted extraction technique was more efficient for the curcumin extraction from powdered C. longa rhizomes.

Figure optionsDownload as PowerPoint slideHighlights
► Curcumin was extracted efficiently from Curcuma longa rhizomes.
► Microwave, ultra-sonic and supercritical CO2 assisted extractions were compared.
► Microwave assisted extraction resulted in 90.69% curcumin yield within 5 min.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 79, Issue 1, 19 May 2011, Pages 50–55
نویسندگان
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