caa a22 4500 467949816 CHVBK 20180323165702.0 cr unu---uuuuu 170328e19880901xx s 000 0 eng 10.1007/BF00939298 doi (NATIONALLICENCE)springer-10.1007/BF00939298 (NATIONALLICENCE)springer-10.1007/BF01982893 Photosynthesis, growth and hydrocarbon production of Botryococcus braunii immobilized by entrapment and adsorption in polyurethane foams [Elektronische Daten] [Christine Bailliez, Claude Largeau, Eliette Casadevall, Lian Yang, Claire Berkaloff] Summary: Direct entrapment of the hydrocarbonrich algaBotryococcus braunii was examined using eleven polyurethane prepolymers. A high toxicity was observed in several foams. With five of the tested prepolymers, nevertheless, a large part of the algal population can survive entrapment and substantial photosynthetic capacity, ca. 40-60% relative to free controls, was retained one day after immobilization. However, prolonged batches under standard conditions revealed a long-term toxicity; as a result the photosynthetic capacity and hydrocarbon production of the entrapped cultures were strongly reduced relative to free controls. Immobilization ofB. braunii was also achieved, with a loading yield of ca. 70%, via adsorption on FHP 4000 and FHP 5000 foams. Subsequent batch cultures under shaken and airlift conditions revealed a substantial release, ca. 30% of free cells, at the end of the cultures. However, the release from these adsorbed cultures was no higher than from directly entrappedB. braunii. Furthermore, no toxic effects were noted in the adsorbed cultures; the showed active growth, high photosynthetic capacity and produced quite large amounts of hydrocarbons, the chemical structure and the relative abundance of which were not altered by immobilization. Taking into account cell leakage, it appears that adsorbed cultures exhibit a similar, and sometimes even higher metabolic activity than free controls; thus, under air-lift conditions, high biomass and hydrocarbon productivities can be achieved. Springer-Verlag, 1988 Bailliez Christine Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut Largeau Claude Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut Casadevall Eliette Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut Yang Lian Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut Berkaloff Claire Laboratoire de Botanique-Cytophysiologie Végétale, LA CNRS 311, Ecole Normale Supérieure, 24, rue Lhomond, F-75231, Paris Cedex 05, France aut Applied Microbiology and Biotechnology Springer-Verlag 29/2-3(1988-09-01), 141-147 0175-7598 29:2-3<141 1988 29 253 https://doi.org/10.1007/BF00939298 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00939298 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bailliez Christine Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Largeau Claude Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Casadevall Eliette Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Yang Lian Laboratoire de Chimie Bioorganique et Organique Physique, UA CNRS 456, Ecole Nationale Supérieure de Chimie de Paris, 11 rue Pierre et Marie Curie, F-75231, Paris Cedex 05, France aut NATIONALLICENCE 700 1- Berkaloff Claire Laboratoire de Botanique-Cytophysiologie Végétale, LA CNRS 311, Ecole Normale Supérieure, 24, rue Lhomond, F-75231, Paris Cedex 05, France aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer-Verlag 29/2-3(1988-09-01), 141-147 0175-7598 29:2-3<141 1988 29 253 NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01982893 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer