کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6638614 | 461164 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An evaluation of the efficacy of using selected solvents for the extraction of lipids from algal biomass by the soxhlet extraction method
ترجمه فارسی عنوان
ارزیابی اثربخشی استفاده از حلال های انتخاب شده برای استخراج لیپیدها از بیوماس جلبک با استفاده از روش استخراج سوکسله
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کلمات کلیدی
بیوماس میکروالگال، استخراج سوکسله، لیپیدها، مخلوط دوتایی، بیودیزل،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The use of solvents for the extraction of lipids from algal biomass has been a method of choice for many years. The soxhlet extraction method was chosen because of its simplicity in operation, relative safety and potential for upscaling to industrial plant level. The source of algal biomass was a raceway pond. Chlorella sp. which is known to produce larger amounts of oil than other indigenous species was used for this investigation. Thirteen solvents spanning a range of polarities and solubilities were selected for this study. Extraction methodology involved the use of single solvents, selected binary solvent mixtures and time-based extractions which were varied from 1 to 5Â h. Ultraviolet (UV) spectroscopy was used to determine chlorophyll content of the lipid extracts and gas chromatography was used for the identification and quantitation of the lipids. Analysis showed that ethanol, chloroform and hexane were generally more efficient in the extraction of lipids than the other solvents studied, producing lipid contents in excess of 10%. The time-based trials indicated that the optimum extraction time was 3Â h for the solvents selected. The binary solvent mixture with the greatest extraction efficiency (i.e. >10% lipid extract) was obtained with the 1:1 mixture of chloroform:ethanol. Chlorophyll quantities varied for each solvent extract with chloroform and methanol producing the highest values at >1%. Chromatography was effective in identifying lipids used in the production of biodiesel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 116, 15 January 2014, Pages 103-108
Journal: Fuel - Volume 116, 15 January 2014, Pages 103-108
نویسندگان
Krishan Ramluckan, Kandasamy G. Moodley, Faizal Bux,