Algal Hydrogen Production and Exopolysaccharide Patterns in Chlorella–Bacillus Inter-Kingdom Co-Cultures
  • Metaadatok
Tartalom: http://hdl.handle.net/20.500.12944/20628
Archívum: Közszolgálati Tudásportál
Gyűjtemény: Publikációk
Víztudományi Kar
Cím:
Algal Hydrogen Production and Exopolysaccharide Patterns in Chlorella–Bacillus Inter-Kingdom Co-Cultures
Létrehozó:
Hupp, Bettina
Huszár, Gabriella
Farkas, Attila
Maróti, Gergely
Téma:
algal–bacterial interaction
Chlorella
Bacillus
biohydrogen
green algae
exopolysaccharide
Műszaki tudományok
Bio-, környezet- és vegyészmérnöki tudományok
Tartalmi leírás:
Biohydrogen production from wastewater using eukaryotic green algae can be facilitated by appropriately selected bacterial partners and cultivation conditions. Two Chlorella algal species were chosen for these experiments, based on their robust growth ability in synthetic wastewater. The applied three Bacillus bacterial partners showed active respiration and efficient biomass production in the same synthetic wastewater. Bacillus amyloliquefaciens, Bacillus mycoides, and Bacillus cereus as bacterial partners were shown to specifically promote algal biomass yield. Various inter-kingdom co-culture combinations were investigated for algal–bacterial biomass generation, for co-culture-specific exopolysaccharide patterns, and, primarily, for algal biohydrogen evolution. Chlorella sp. MACC-38 mono- and co-cultures generated significantly higher biomass compared with that of Chlorella sp. MACC-360 mono- and co-cultures, while in terms of hydrogen production, Chlorella sp. MACC-360 co-cultures clearly surpassed their Chlorella sp. MACC-38 counterparts. Imaging studies revealed tight physical interactions between the algal and bacterial partners and revealed the formation of co-culture-specific exopolysaccharides. Efficient bacterial respiration was in clear correlation with algal hydrogen production. Stable and sustainable algal hydrogen production was observed in synthetic wastewater for Chlorella sp. MACC-360 green algae in co-cultures with either Bacillus amyloliquefaciens or Bacillus cereus. The highest algal hydrogen yields (30 mL H2 L?1 d?1) were obtained when Chlorella sp. MACC-360 was co-cultured with Bacillus amyloliquefaciens. Further co-culture-specific algal biomolecules such as co-cultivation-specific exopolysaccharides increase the valorization potential of algal–bacterial co-cultures and might contribute to the feasibility of algal biohydrogen production technologies.
Típus:
info:eu-repo/semantics/other
Formátum:
application/pdf
Azonosító:
nke:2311-5637
nke:10.3390/fermentation9050424
nke:33781295
nke:10061823
nke:Fermentation
nke:9
nke:5
nke:85160334666
nke:FERMENTATION-BASEL
Létrehozó:
info:eu-repo/semantics/openAccess