کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7078608 | 1459984 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced lipid extraction from algae using free nitrous acid pretreatment
ترجمه فارسی عنوان
افزایش لیپید استخراج از جلبکها با استفاده از پیشگیری از اسید نیتریک آزاد
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کلمات کلیدی
اسید نیتریک آزاد استخراج لیپید، جلبک، بیودیزل، اختلال در سلول،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Lipid extraction has been identified as a major bottleneck for large-scale algal biodiesel production. In this work free nitrous acid (FNA) is presented as an effective and low cost pretreatment to enhance lipid recovery from algae. Two batch tests, with a range of FNA additions, were conducted to disrupt algal cells prior to lipid extraction by organic solvents. Total accessible lipid content was quantified by the Bligh and Dyer method, and was found to increase with pretreatment time (up to 48Â h) and FNA concentration (up to 2.19Â mg HNO2-N/L). Hexane extraction was used to study industrially accessible lipids. The mass transfer coefficient (k) for lipid extraction using hexane from algae treated with 2.19Â mg HNO2-N/L FNA was found to be dramatically higher than for extraction from untreated algae. Consistent with extraction results, cell disruption analysis indicated the disruption of the cell membrane barrier.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 159, May 2014, Pages 36-40
Journal: Bioresource Technology - Volume 159, May 2014, Pages 36-40
نویسندگان
Xue Bai, Forough Ghasemi Naghdi, Liu Ye, Paul Lant, Steven Pratt,