Inorganic carbon sources and biomass regulation in intensive microalgal cultures

Journal Article · Fri May 01 04:00:00 EDT 1981 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260230508· OSTI ID:5204353

Goldman, J C; Dennett, M R; Riley, C B

Three freshwater and one marine algal species were grown under inorganic carbon limitation in laboratory continuous cultures. Comparisons were made between HCO/sub 3//sup -/ alkalinity and bubbled CO/sub 2/ as carbon sources. HCO/sub 3//sup -/ alkalinity was an excellent source of inorganic carbon below specific pH levels, but chemical precipitation at high pH placed an upper limit on productivity that was far lower than potential light-limiting levels. With bubbled CO/sub 2/ it was possible to achieve light limitation. At 1% CO/sub 2/ productivity was still dependent on mass fluxes of added carbon, but was independent of bubble size. At high bubble rates with 1% CO/sub 2/ narcosis was evident. Maximum yields occurred at intermediate dilution rates when inorganic carbon was supplied via bubbled gas. 35 refs.

• Research Organization: Woods Hole Oceanogr Inst., MA
• OSTI ID: 5204353
• Journal Information: Biotechnol. Bioeng.; (United States), Journal Name: Biotechnol. Bioeng.; (United States) Vol. 23:5; ISSN BIBIA
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
140504* -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
550300 -- Cytology
59 BASIC BIOLOGICAL SCIENCES
ACID CARBONATES
ALGAE
BIOMASS
BUBBLES
CARBON
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CELL CULTURES
CHALCOGENIDES
CULTIVATION TECHNIQUES
ELEMENTS
ENERGY SOURCES
FLUIDS
GASES
HELIUM
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PLANTS
RARE GASES
RENEWABLE ENERGY SOURCES