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| Vasseur, Christophe; Bougaran, Gael; Garnier, Matthieu; Hamelin, Jérôme; Leboulanger, Christophe; Le Chevanton, Myriam; Mostajir, Behzad; Sialve, Bruno; Steyer, Jean-philippe; Fouilland, Eric. |
| Association of microalgae culture and anaerobic digestion seems a promising technology for sustainable algal biomass and biogas production. The use of digestates for sustaining the growth of microalgae reduces the costs and the environmental impacts associated with the substantial algal nutrient requirements. A natural marine algae–bacteria consortium was selected by growing on a medium containing macro nutrients (ammonia, phosphate and acetate) specific of a digestate, and was submitted to a factorial experimental design with different levels of temperature, light and pH. The microalgal consortium reached a maximum C conversion efficiency (i.e. ratio between carbon content produced and carbon supplied through light photosynthetic C conversion and acetate)... |
| Tipo: Text |
Palavras-chave: Optimization; Nannochloris; Heterotrophic bacteria; Anaerobic digestion; Bioenergy. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00085/19642/17419.pdf |
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| Purvina, S; Béchemin, Christian; Balode, M; Verite, Celine; Arnaud, Christophe; Maestrini, Serge Y. |
| The use of riverine dissolved organic matter by the heterotrophic bacteria associated with a culture of the cyanobacterium Microcystis aeruginosa and release of simple nitrogen compounds were studied in an experimental series. Bacteria reduced the bulk of dissolved organic nitrogen (DON) by half, but when associated with M. aeruginosa, DON was excreted and its concentration rose by 13%. During the stationary growth phase bacteria released ammonium, doubling the concentration of ammonia as well as of nitrates. Bacteria associated with M. aeruginosa consumed riverine DON and joined the ammonification and nitrification process, supplying cyanobacteria with simple nitrogen compounds. |
| Tipo: Text |
Palavras-chave: Microcystis aeruginosa; Heterotrophic bacteria; DOM; DON; Nitrates; Ammonia. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00353/46408/46122.pdf |
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| Смирнова, Л. Л.. |
| Исследована сезонная динамика численности гетеротрофных бактерий и микромицетов, участвующих в разрушении органического вещества в различных биотопах б. Казачья. Показано, что численность гетеротрофных бактерий в 100 – 1000 раз превышает таковую грибов в морской пене, поверхностном микрослое воды и донных отложениях. Низкая солёность, повышенное содержание органического вещества и возрастание соотношения C/N ≥20 благоприятны для развития микобиоты в донных отложениях. Из исследованных биотопов выделено 44 вида микромицетов, отнесённых к митоспоровым грибам (Deuteromycetes). В поверхностном микрослое воды доминировал Cladosporium cladosporioides, в донных отложениях часто встречались представители родов Aspergillus, Penicillium, Phoma, Mucor. |
| Tipo: Journal Contribution |
Palavras-chave: Гетеротрофные бактерии; Микромицеты; Абиотические факторы; Морская пена; Донные отложения; Казачья бухта; Севастополь; Чёрное море; Гетеротрофні бактерії; Мікромицети; Абіотичні чинники; Морська піна; Донні відкладе; Чорне море; Heterotrophic bacteria; Fungi; Abiotic factors; Upper layers of water surface; Bottom sediments; Black Sea. |
| Ano: 2010 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/1938 |
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