In their study, at the highest light
intensity of 200lmol m2
s
1
the microalgae Nannochloropsissp.
showed slower growth compared with the light intensity of
100lmol m2
s
1
. The light saturation inhibition might be
between 6000 and 10,000 lux, as a result of which the biomass
did not increase with the light intensity increasing to 10,000 lux.
A better growth performance under the light condition of
decreased illumination of 6000 lux indicated that reducing the
light intensity could contribute to accelerating biomass accumulation during day 7–13. Moreover, the light intensity of 6000 lux,
compared with the light intensity of 10,000 lux, could mitigate risk
of high illumination-induced photoinhibition which could damage
the photosynthetic receptor system causing a sharp decrease of
biomass[38]. As a result, the light intensities microalgae needed
in the growth process might be different and vary greatly. The light
requirement of microalgaeChlorellasp. could be provided by two
different light intensities based on the growth state.
In their study, at the highest lightintensity of 200lmol m2s1the microalgae Nannochloropsissp.showed slower growth compared with the light intensity of100lmol m2s1. The light saturation inhibition might bebetween 6000 and 10,000 lux, as a result of which the biomassdid not increase with the light intensity increasing to 10,000 lux.A better growth performance under the light condition ofdecreased illumination of 6000 lux indicated that reducing thelight intensity could contribute to accelerating biomass accumulation during day 7–13. Moreover, the light intensity of 6000 lux,compared with the light intensity of 10,000 lux, could mitigate riskof high illumination-induced photoinhibition which could damagethe photosynthetic receptor system causing a sharp decrease ofbiomass[38]. As a result, the light intensities microalgae neededin the growth process might be different and vary greatly. The lightrequirement of microalgaeChlorellasp. could be provided by twodifferent light intensities based on the growth state.
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