Adaptabilidad de Spirulina (Arthrospira) platensis (Cyanophyta) en fotobiorreactor tubular cónico bajo condiciones ambientales

Abstract

We studied the adaptability of the alga Cyanophyta Spirulina (Arthrospira) platensis (Geitl) grown in conical tubular photobioreactor under ambient conditions with 0.28 m2 on the upper surface of the Cone (0.7 m x 0.6 m top diameter) constructed with PVC (polyvinyl chloride) pipe transparent (12 mm diameter, 34 m long for the 34 coils forming the cone and 7 m for the cooler) reinforced with a metal frame and lined with aluminum foil; (total volume = 5.3 L). The inner surface of the Cone (0.71 m2) was exposed to sunlight with 11700 lux illuminance and solar radiation mean equal to 774 W/m2 from June 24 to July 12, 2013. Agitation and aeration of the photobioreactor culture was carried out with an air pump to an average flow of 0.002 L/s which resulted in a rate of production of dry biomass of 0,298 g/m2/day, chlorophyll “a” 0,0023 g/m2/day and carotenoids in 0,0011 g/m2/day. The growth of S. platensis in conical tubular photobioreactor was adjusted to a mathematical model of growth “Potential” in 18 days, with statistical adjustment of the model (R2 = 0. 937; F = 119,216).