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.

    We have a manual that explains all the features 

Record number 409302
Title Luminostat operation: A tool to maximize microalgae photosynthetic efficiency in photobioreactors during the daily light cycle?
Author(s) Cuaresma, M.; Janssen, M.G.J.; End, E.J. van den; Vílchez, C.; Wijffels, R.H.
Source Bioresource Technology 102 (2011)17. - ISSN 0960-8524 - p. 7871 - 7878.
Department(s) Bioprocess Engineering
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) chlorella-sorokiniana - productivity - irradiance - stress
Abstract The luminostat regime has been proposed as a way to maximize light absorption and thus to increase the microalgae photosynthetic efficiency within photobioreactors. In this study, simulated outdoor light conditions were applied to a lab-scale photobioreactor in order to evaluate the luminostat control under varying light conditions. The photon flux density leaving the reactor (PFDout) was varied from 4 to 20 mol photons m-2 s-1and the productivity and photosynthetic efficiency of Chlorella sorokiniana were assessed. Maximal volumetric productivity (1.22 g Kg-1 d-1) and biomass yield on PARphotons(400700 nm) absorbed (1.27 g mol-1) were found when PFDout was maintained between 4 and 6 mol photons m-2 s-1.The resultant photosynthetic efficiency was comparable to thatalready reported in a chemostat-controlled reactor.A strict luminostat regime could not be maintained under varying light conditions.Further modifications to the luminostat control arerequired before application under outdoor conditions.
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