کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7079382 1459993 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic microstructures and fractal characterization of cell wall disruption for microwave irradiation-assisted lipid extraction from wet microalgae
ترجمه فارسی عنوان
ریزساختارهای پویا و خصوصیات فراکتال از اختلال دیوار سلولی برای استخراج لیپید با استفاده از اشعه مایکروویو از مایکروویو مرطوب
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
To extract lipids from wet microalgae through cell disruption, the effects of microwave treatment on the dynamic cell wall microstructures were investigated. The fractal dimension of raw, untreated microalgal cells was 1.46. The disruption level of microalgal cell walls was enhanced when microwave treatment temperature increased from 80 to 120 °C, resulting in an increase in microalgal cell fractal dimension from 1.61 to 1.91. The cell wall thickness and pore diameters in cell walls increased from 0.11 to 0.59 μm and from 0.005 to 0.18 μm, respectively, when microwave treatment time increased from 0 to 20 min. The outer pectin layers of cell walls gradually detached and the porosity of inner cellulose layers increased when microwave treatment time increased to 26 min. The initial point of disruption appeared at the maximum curvature (approximately 1.01 × 107 m−1) of cell walls. Numbers of short-chain and saturated lipids increased because of microwave electromagnetic effect.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 150, December 2013, Pages 67-72
نویسندگان
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