caa a22 4500 605497893 CHVBK 20210128100543.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00253-014-5768-6 doi (NATIONALLICENCE)springer-10.1007/s00253-014-5768-6 High-purity biodiesel production from microalgae and added-value lipid extraction: a new process [Elektronische Daten] [M. Veillette, A. Giroir-Fendler, N. Faucheux, M. Heitz] A new process was tested in order to produce and purify biodiesel from microalgae lipids and to recover unsaponifiable (added-value) lipids. This process is a two-step biodiesel production including a saponification reaction step followed by an esterification reaction step. The process includes a recovery of the unsaponified lipids between both reaction steps. Among the conditions tested, the following conditions were found to be the best: temperature for both steps (90°C), saponification time (30min), esterification time (30min), sulfuric acid/potassium hydroxide (1.21, w/w), and methanol-lipid ratio (13.3mL/g). Under these conditions, the fatty acid methyl ester (FAME) yield and the biodiesel purity were, respectively, 32% (g FAME/g lipid) and 77% (g FAME/g biodiesel). This study also showed that the two-step biodiesel process allows a FAME mass composition rich in palmitate (27.9-29.4wt%), palmitoleate (24.9-26.0wt%), elaidate (14.8-15.2wt%), and myristate (12.1-13.0wt%). Springer-Verlag Berlin Heidelberg, 2014 Biodiesel nationallicence Microalgae nationallicence Purification nationallicence Lipids nationallicence Veillette M. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut Giroir-Fendler A. Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, 2 avenue Albert Einstein, 69626, Villeurbanne Cedex, France aut Faucheux N. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut Heitz M. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 109-119 0175-7598 99:1<109 2015 99 253 https://doi.org/10.1007/s00253-014-5768-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-5768-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Veillette M. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut NATIONALLICENCE 700 1- Giroir-Fendler A. Université Lyon 1, CNRS, UMR 5256, IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, 2 avenue Albert Einstein, 69626, Villeurbanne Cedex, France aut NATIONALLICENCE 700 1- Faucheux N. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut NATIONALLICENCE 700 1- Heitz M. Department of Chemical Engineering and Biotechnological Engineering, Engineering Faculty, Université de Sherbrooke, 2500 boulevard de l'Université, J1K 2R1, Sherbrooke, QC, Canada aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/1(2015-01-01), 109-119 0175-7598 99:1<109 2015 99 253