Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [307933] |
Supercritical CO2 extraction of Nannochloropsis sp.: a lipidomic study on the influence of pretreatment on yield and composition
Elst, K.; Maesen, M.; Jacobs, G.; Bastiaens, L.; Voorspoels, S.; Servaes, K. (2018). Supercritical CO2 extraction of Nannochloropsis sp.: a lipidomic study on the influence of pretreatment on yield and composition. Molecules 23(8): 1854. https://dx.doi.org/10.3390/molecules23081854
In: Molecules. MDPI: Basel. e-ISSN 1420-3049, meer
|   |
| Trefwoorden |
Nannochloropsis D.J.Hibberd, 1981 [WoRMS]
Marien/Kust |
| Author keywords |
Nannochloropsis sp.; supercritical CO2 extraction; microalgae;pretreatment; lipidomic; UHPLC-PDA-HR-MS; glycolipids; phospholipids;glycerides; mass transfer limitations |
| Abstract |
Algal lipids have gained wide interest in various applications ranging from biofuels to nutraceuticals. Given their complex nature composed of different lipid classes, a deep knowledge between extraction conditions and lipid characteristics is essential. In this paper, we investigated the influence of different pretreatments on lipid extraction with supercritical CO2 by a lipidomic approach. Pretreatment was found to double the total extraction yield, thereby reaching 23.1 wt.% comparable to the 26.9 wt.% obtained with chloroform/methanol. An increase in acylglycerides was concurrently observed, together with a nearly doubling of free fatty acids indicative of partial hydrolysis. Moreover, an alteration in the distribution of glyco- and phospholipids was noted, especially promoting digalactosyldiglycerides and phosphatidylcholine as compared to monogalactosyldiglycerides and phosphatidylglycerol. At optimized conditions, supercritical CO2 extraction provided a lipid extract richer in neutral lipids and poorer in phospholipids as compared to chloroform/methanol, though with a very similar fatty acid distribution within each lipid class. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
