Title |
Optimization of biodiesel synthesis by esterification using a fermented solid produced by Rhizopus microsporus on sugarcane bagasse
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Published in |
Bioprocess and Biosystems Engineering, January 2018
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DOI | 10.1007/s00449-018-1892-5 |
Pubmed ID | |
Authors |
Vanderleia Botton, Leandro Piovan, Henry França Meier, David Alexander Mitchell, Jesús Cordova, Nadia Krieger |
Abstract |
A fermented solid containing lipases was produced by solid-state fermentation of Rhizopus microsporus on sugarcane bagasse enriched with urea, soybean oil, and a mineral solution. The dry fermented solid produced using R. microsporus (RMFS) was used to catalyze the synthesis of alkyl-esters by esterification in a solvent-free system containing ethanol and oleic acid (as a model system) or a mixture of fatty acids obtained from the physical hydrolysis of soybean soapstock acid oil (FA-SSAO) in subcritical water. The conversions were 93.5 and 84.1%, for oleic acid and FA-SSAO, respectively, at 48 h and 40 °C, at a molar ratio (MR) of ethanol to fatty acid of 5:1. A further increase in the MR to 10:1 improved the production of ethylic-esters, giving conversions at 48 h of 98 and 86% for oleic acid and FA-SSAO, respectively. The results obtained in this work foster further studies on scaling-up of an environmentally friendly process to produce biofuels. |
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Unknown | 2 | 100% |
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Members of the public | 2 | 100% |
Mendeley readers
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Unknown | 50 | 100% |
Demographic breakdown
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Student > Bachelor | 7 | 14% |
Student > Master | 6 | 12% |
Professor | 5 | 10% |
Student > Ph. D. Student | 5 | 10% |
Researcher | 4 | 8% |
Other | 8 | 16% |
Unknown | 15 | 30% |
Readers by discipline | Count | As % |
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Engineering | 9 | 18% |
Chemistry | 5 | 10% |
Agricultural and Biological Sciences | 5 | 10% |
Environmental Science | 3 | 6% |
Biochemistry, Genetics and Molecular Biology | 2 | 4% |
Other | 5 | 10% |
Unknown | 21 | 42% |