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Acta Biológica Colombiana

Print version ISSN 0120-548X


FORERO-CUJINO, Mario Andrés; MONTENGRO RUIZ, Luis Carlos; PINILLA-AGUDELO, Gabriel Antonio  and  MELGAREJO-MUNOZ, Luz Marina. Immobilization of Microalgae Scenedesmus ovalternus (Scenedesmaceae) and Chlorella vulgaris (Chlorellaceae) in Calcium Alginate Beads. Acta biol.Colomb. [online]. 2016, vol.21, n.2, pp.437-442. ISSN 0120-548X.

This paper describes the immobilization technique of microalgae in calcium alginate beads. Scenedesmus ovalternus and Chlorella vulgaris species were used. The stability of beads, the kinetics of growth and the concentrations of microalgae inside the beads were determined. The higher density and the upper growth rate of Chlorella vulgaris occurred when it was immobilized in alginate at a concentration of 10 %v/v (1,31*106 cél/ml). Scenedesmus ovalternus achieved a higher population density and an elevated growth rate when it was immobilized at a concentration of 20 % v/v (7,06*105 cél/ml). These results are useful for subsequent applications of the encapsulated algae, such as biomonitoring and bioremediation.

Keywords : calcium alginate; Chlorella vulgaris; immobilization technique; immobilized microalgae; Scenedesmus ovalternus.

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