کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7082218 1460003 2013 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical cell disruption for lipid extraction from microalgal biomass
ترجمه فارسی عنوان
اختلال سلولی مکانیکی برای استخراج چربی از بیوماس میکروالگل
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Cell disruption is an integral part of the downstream operation required to produce biodiesel from microalgae. This study investigated the use of ultrasonication and high-pressure homogenization (HPH) as cell disruption methods for two microalgal species, Tetraselmis suecica (TS) and Chlorococcum sp. (C sp.). The kinetics of cell disruption followed a first-order model (0.65 < R2 < 1.00). Disruption rate constant for ultrasonication was directly proportional to power level and followed a parabolic relationship with initial cell concentration, while that for HPH was directly proportional to operating pressure and inversely proportional to initial cell concentration. Mean disruption rate constant for HPH was approximately seven times that for ultrasonication. Mean disruption rate constant for TS cells was roughly 20% higher than that for C sp. cells. Subjecting TS culture to cell disruption prior to lipid extraction resulted in 5-8-fold increase in lipid yield and 3-5-fold increase in triglyceride yield.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 140, July 2013, Pages 53-63
نویسندگان
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