کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
225165 464479 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solvent-free microwave extraction of essential oil from oregano
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Solvent-free microwave extraction of essential oil from oregano
چکیده انگلیسی

Applicability of solvent-free microwave extraction (SFME) in the extraction of essential oil from Origanum vulgare L. was examined and the effects of microwave power and extraction time on the yield and composition of the product were investigated. Specific gravity and refractive index of the essential oil and its solubility in alcohol were also examined. Hydrodistillation was performed as control. GC–MS/FID was used for the determination and quantification of aroma compounds in the essential oils. SFME offered significantly higher essential oil yields (0.054 mL/g) as compared to hydrodistillation (0.048 mL/g). When 622 W microwave power was used in SFME, conventional process time was reduced by 80%. The main aroma compound of oregano essential oil was found to be thymol (650–750 mg/mL). No significant differences were obtained in the compositions and physical properties of oregano essential oils obtained by SFME and hydrodistillation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 88, Issue 4, October 2008, Pages 535–540
نویسندگان
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