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dc.contributor.authorHadj-Romdhane, F.
dc.contributor.authorZheng, Xing
dc.contributor.authorJaouen, Pascal
dc.contributor.authorPruvost, Jérémy
dc.contributor.authorGrizeau, Dominique
dc.contributor.authorCroue, Jean-Philippe
dc.contributor.authorBourseau, Patrick
dc.date.accessioned2015-08-03T11:00:42Z
dc.date.available2015-08-03T11:00:42Z
dc.date.issued2013-03
dc.identifier.issn09608524
dc.identifier.pmid23411460
dc.identifier.doi10.1016/j.biortech.2013.01.025
dc.identifier.urihttp://hdl.handle.net/10754/562670
dc.description.abstractReusing supernatant of microalgae culture medium can have inhibitory or toxic effects on the biomass production because of the release of organic metabolites by cells in the culture medium during their growth. This work investigated the impact of Chlorella vulgaris medium recycling on culture productivity, cells quality and accumulation of excreted metabolites in the culture medium. No significant impact on the C. vulgaris growth was observed after 63days of recycling, the productivity remained stable at around 0.55kgm-3day-1. Organic matters accumulated in supernatant were identified as biopolymers (BP) poor in nitrogen and with a size above 40kDa (probably polysaccharides), and small organic molecules (SOM) richer in nitrogen with a molecular size ranging from 1 to 3kDa. The concentration of biopolymers in the supernatant increased till to a maximum and then decreased, possibly consumed by bacteria, whereas small organic compounds accumulated in the medium. © 2013 Elsevier Ltd.
dc.description.sponsorshipThe authors thank Helene Marec (GEPEA UMR-CNRS 6144) and Jean-Luc Hauser for photobioreactor design and their technical support.
dc.publisherElsevier BV
dc.subjectChlorella vulgaris
dc.subjectExcreted organic matter
dc.subjectLarge-scale culture
dc.subjectWater recycling
dc.titleThe culture of Chlorella vulgaris in a recycled supernatant: Effects on biomass production and medium quality
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalBioresource Technology
dc.contributor.institutionUniv Nantes, LUNAM Univ, CNRS, GEPEA UMR 6144, F-44602 St Nazaire, France
dc.contributor.institutionUEB Univ Bretagne Sud, LIMATB, F-56321 Lorient, France
kaust.personZheng, Xing
kaust.personCroue, Jean-Philippe


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