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Single Cell Oil Producing Yeasts Lipomyces starkeyi and Rhodosporidium toruloides: Selection of Extraction Strategies and Biodiesel Property Prediction
Department of Materials and Bioprocess Engineering, School of Chemical Engineering, State University of Campinas.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0002-3687-6173
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.ORCID-id: 0000-0003-0079-5950
Vise andre og tillknytning
2015 (engelsk)Inngår i: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 8, nr 6, s. 5040-5052Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Single cell oils (SCOs) are considered potential raw material for the production of biodiesel. Rhodosporidium sp. and Lipomyces sp. are good candidates for SCO production. Lipid extractability differs according to yeast species and literature on the most suitable method for each oleaginous yeast species is scarce. This work aimed to investigate the efficiency of the most cited strategies for extracting lipids from intact and pretreated cells of Rhodosporidium toruloides and Lipomyces starkeyi. Lipid extractions were conducted using hexane or combinations of chloroform and methanol. The Folch method resulted in the highest lipid yields for both yeasts (42% for R. toruloides and 48% for L. starkeyi). Also, this method eliminates the cell pretreatment step. The Bligh and Dyer method underestimated the lipid content in the tested strains (25% for R. toruloides and 34% for L. starkeyi). Lipid extractability increased after acid pretreatment for the Pedersen, hexane, and Bligh and Dyer methods. For R. toruloides unexpected fatty acid methyl esters (FAME) composition were found for some lipid extraction strategies tested. Therefore, this work provides useful information for analytical and process development aiming at biodiesel production from the SCO of these two yeast species.

sted, utgiver, år, opplag, sider
2015. Vol. 8, nr 6, s. 5040-5052
HSV kategori
Forskningsprogram
Biokemisk processteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-3915DOI: 10.3390/en8065040Lokal ID: 1c41c552-648e-4799-baab-13687688f144OAI: oai:DiVA.org:ltu-3915DiVA, id: diva2:976777
Merknad
Validerad; 2015; Nivå 2; 20150528 (leomat)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2017-11-24bibliografisk kontrollert

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Forlagets fullteksthttp://www.mdpi.com/1996-1073/8/6/5040

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Matsakas, LeonidasNilsson, RobertChristakopoulos, PaulBerglund, KrisRova, Ulrika
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