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Extracted fat from lamb meat by supercritical CO2 as feedstock for biodiesel production

Paper ID Volume ID Publish Year Pages File Format Full-Text
3839 192 2011 9 PDF Available
Title
Extracted fat from lamb meat by supercritical CO2 as feedstock for biodiesel production
Abstract

The feasibility of enzymatic production of biodiesel from waste animal fats using supercritical fluid technology for the extraction and reaction has been investigated. The operating conditions that resulted in the optimum extraction and biodiesel production yields were identified. The effects of extraction temperature, pressure and supercritical CO2 (SC-CO2) flow rate were investigated in the ranges of 35–55 °C, 300–500 bar and of 3–5 ml min−1, respectively, and optimized using response surface methodology (RSM). In addition, the effects of reaction temperature, methanol:fat molar ratio and enzyme loading on biodiesel production yield were investigated in the ranges of 35–60 °C, 3:1–6:1 and 10–50%, respectively. The optimum conditions for supercritical fluid extraction (SFE) were determined to be 45 °C, 500 bar and 3 ml min−1; at which, 87.4% of total fat content was extracted from freeze dried meat. The statistical analysis however, showed that pressure has negligible effect on the extraction yield, which is extremely important, as it allows saving energy by using lower pressure. On the other hand, biodiesel yield of 40% was obtained using extracted fat as feedstock in SC-CO2 medium at 50 °C, 200 bar, 4:1 methanol:fat molar ratio and 30% loading of lipase enzyme, after 24 h of reaction. The experimental results were used to fit a suitable reaction kinetic model using non-linear regression analysis to estimate the model parameters.

► Simultaneous production biodiesel and healthy low-fat lean lamb was studied. ► Fat was extraction from lamb meat by supercritical CO2. ► The extracted fat was used as a cheap raw material for biodiesel production. ► Biodiesel was produced in a bioreactor packed with immobilized lipase in supercritical CO2 media.

Keywords
Lamb meat fat; Supercritical carbon dioxide (SC-CO2); Biodiesel; Reaction kinetic model; Novozym 435
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Extracted fat from lamb meat by supercritical CO2 as feedstock for biodiesel production
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 55, Issue 1, 15 June 2011, Pages 23–31
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us