Cell disruption pre-treatments towards an effective recovery of oil from Yarrowia lipolytica oleaginous yeast

The aim of this work was to evaluate the efficiency of different cell disruption techniques on oil extraction from Y. lipolytica oleaginous yeast. The techniques tested were mechanical expression (ME), moderate pulsed electric field assisted mechanical expression (MPEF-ME), high pulsed electric fiel...

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Bibliographic Details
Published in:Biomass & bioenergy 2019-09, Vol.128, p.105320, Article 105320
Main Authors: Drévillon, Lucie, Koubaa, Mohamed, Nicaud, Jean-Marc, Vorobiev, Eugène
Format: Article
Language:English
Subjects:
Biotechnology
Chemical and Process Engineering
Engineering Sciences
Food and Nutrition
High voltage electrical discharges
High-pressure homogenization
Life Sciences
Oil recovery
Pulsed electric fields
Ultrasound
Yarrowia lipolytica
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Summary:The aim of this work was to evaluate the efficiency of different cell disruption techniques on oil extraction from Y. lipolytica oleaginous yeast. The techniques tested were mechanical expression (ME), moderate pulsed electric field assisted mechanical expression (MPEF-ME), high pulsed electric fields (HPEF), high voltage electrical discharges (HVED), ultrasound (US), and high-pressure homogenization (HPH). The impact of each cell disruption technique on fatty acid composition was investigated. Results show that the most efficient technique for Y. lipolytica disruption was HPH leading to the obtaining of 83.8 ± 4.8% oil extraction yield, compared to only 19.8 ± 0.5% for the control, without any pre-treatment. In terms of fatty acid composition, HVED induced significant changes in almost all the analyzed fatty acids, while US was the softest technique. HPH, ME, and MPEF-ME induced changes in the content of some fatty acids. •Efficiency of cell disruption technologies for oil recovery from Yarrowia lipolytica yeast.•High-pressure homogenization (HPH) was the most efficient technique among all tested.•A yield of 83.85 ± 4.77% was obtained for HPH, compared to only 19.79 ± 0.48% for the control.•Although the most efficient, HPH was the most energy-consuming technique with 134 kJ/g of oil.
ISSN:0961-9534
1873-2909
DOI:10.1016/j.biombioe.2019.105320