Abstract
Outdoor experiments carried out in Florence, Italy (latitude 43.8° N, longitude 11.3° E), using tubular photobioreactors have shown that in summer the average net productivity of a Spirulina platensis culture grown at the optimal temperature of 35 °C was superior by 23% to that observed in a culture grown at 25 °C. The rates of night biomass loss were higher in the culture grown at 25 °C (average 7.6% of total dry weight) than in the one grown at 35 °C (average 5%). Night biomass loss depended on the temperature and light irradiance at which the cultures were grown, since these factors influenced the biomass composition. A net increase in carbohydrate synthesis occurred when the culture was grown at a low biomass concentration under high light irradiance or at the suboptimal temperature of 25 °C. Excess carbohydrate synthesized during the day was only partially utilized for night protein synthesis.
Original language | English |
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Pages (from-to) | 103-109 |
Number of pages | 7 |
Journal | Journal of Applied Phycology |
Volume | 3 |
Issue number | 2 |
DOIs | |
State | Published - 1 Jun 1991 |
Keywords
- Spirulina
- carbohydrate
- night biomass loss
- outdoor mass culture
- photobioreactor
- temperature
ASJC Scopus subject areas
- Aquatic Science
- Plant Science