Table 1
Effect of temperature on biomass productivity of Anabaena sp. ATCC
33047 in open semi-continuous culturea
Temperature (8C) Productivity (g (dry biomass) m2 per day)
20 4.990.5
25 6.490.7
30 8.791.1
35 8.891.2
40 12.591.4
a Cell suspension depth was 15 cm and cell density was maintained
at a minimal value of 0.15 g (dry biomass) l1. Productivity values are
average9S.D. of seven independent determinations in winter at a solar
irradiance of 8.790.5 MJ m2 per day. The indicated temperature
values were maintained with the help of a 1.5 kW heater controlled by
a thermostat.