Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 522828
Title Continuous versus batch production of lipids in the microalgae Acutodesmus obliquus
Author(s) Remmers, I.M.; Hidalgo-Ulloa, A.; Brandt, B.P.; Evers, W.A.C.; Wijffels, R.H.; Lamers, P.P.
Source Bioresource Technology 244 (2017). - ISSN 0960-8524 - p. 1384 - 1392.
DOI https://doi.org/10.1016/j.biortech.2017.04.093
Department(s) Bioprocess Engineering
Environmental Technology
Corporate Education, Research & Innovation
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2017
Keyword(s) Diurnal LD cycles - Microalgae - Scenedesmus obliquus - Starch - Triacylglycerol (TAG)
Abstract This work provides a novel quantitative comparison of batch versus continuous microalgal lipid production in the wild type and starchless mutant strain of Acutodesmus obliquus. Both strains showed higher TAG yields on light under batch operation compared to continuous nitrogen limitation. The starchless mutant showed 0.20gTAGmolph -1 for batch and 0.12gTAGmolph -1 for continuous operation, while the wildtype only showed 0.16gTAGmolph -1 for batch and 0.08gTAGmolph -1 for continuous operation. Also, higher TAG contents were found under batch starvation (26% of dry weight for the wildtype and 43% of dry weight for starchless mutant) compared to continuous cultivations (16% of dry weight for the wildtype and 33% of dry weight for starchless mutant). Starch acts as the favoured storage metabolite during nitrogen limitation in A. obliquus, whereas TAG is only accumulated after starch reaches a cellular maximum of 40% of dry weight.
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