title: Growth of Chlorella sorokiniana on a mixture of volatile fatty acids: The effects of light and temperature.
abstract: This study investigated the influence of light and temperature on Chlorella sorokiniana grown on a mixture of acetate and butyrate, two of the volatile fatty acids produced by dark fermentation. Exposure to light caused autotrophic biomass production (56% of the final biomass) and reduced the time to reach butyrate exhaustion to 7 days at 25°C from 10 days in the dark. For growth on acetate at the optimum temperature (35°C), the presence of butyrate reduced the growth rate (by 46%) and the carbon yield (by 36%). For successful microalgae growth on dark fermentation effluent, butyrate inhibition may be reduced by setting the temperature to 30°C and providing light.
authors.affiliation: INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, F-11100 Narbonne, France.
authors.forename: V
authors.initials: V
authors.lastname: Turon
authors.affiliation: INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, F-11100 Narbonne, France.
authors.forename: E
authors.initials: E
authors.lastname: Trably
authors.affiliation: Marine Biodiversity, Exploitation and Conservation - UMR 9190 MARBEC, CNRS, UM, IFREMER, IRD, Station Marine, Université de Montpellier, 2 Rue des Chantiers, 34200 Sète, France. Electronic address: Eric.Fouilland@cnrs.fr.
authors.forename: E
authors.initials: E
authors.lastname: Fouilland
authors.affiliation: INRA, UR0050 Laboratoire de Biotechnologie de l'Environnement, F-11100 Narbonne, France.
authors.forename: J-P
authors.initials: JP
authors.lastname: Steyer
mesh_terms: D000085:Acetates / Q000378:metabolism*; D018533:Biomass; D020148:Butyric Acid / Q000378:metabolism*; D002708:Chlorella / Q000378:metabolism / Q000528:radiation effects; D005285:Fermentation; D058086:Microalgae / Q000378:metabolism / Q000528:radiation effects; D013696:Temperature
chemical_list: D000085:Acetates; D020148:Butyric Acid
keywords: Butyrate inhibition; Chlorella sorokiniana; Dark fermentation; Heterotrophy; Mixotrophy