Abstract. QUEVEDO O, Catalina; MORALES V, Sonia P and ACOSTA C, Alejandro. Scenedesmus sp GROWTH IN DIFFERENT CULTURE mediums FOR . EVALUACIÓN DEL CRECIMIENTO DE LA MICROALGA Scenedesmus sp. E. No description. by. on 25 October Tweet. Crecimiento de Scenedesmus quadricauda en efluentes cloacales de la ciudad de Trelew, Chubut, Argentina.

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This suggests that the light intensity within the limitation area described in the waves P-I did not affect the growth and content of protein when low cells stocking density beads are used. Effects of different methods of processing on the protein efficiency ratio of the green alga Scenedesmus acutus.

Scenedesmus obliquus, photosynthesis, immobilized cells protein content. Analysis of the cellular density and proteins.


As mentioned earlier, experiments were run in triplicate. Under the light intensities selected in the present study there were no significant effects of light intensities on the growth and protein content of S.

Physiology of alginate immobilized Chlorella. This suggests that after immobilization the microalga S.

Características fotosintéticas y crecimiento de Scenedesmus obliquus inmovilizada en alginato

However, it can be observed that in contrast to free-cell cultures, the appropriate light intensity obtained within the light limitation zone P-I crecmiiento does not guarantee a high biomass production and protein content. Statistical analyses The photosynthetic rate data in the experiments with two cellular densities in alginate beads were analyzed by analysis of variance ANOVA.

This could be advantageous, because the cultures can work with a wide range of intensity of light in crecimientto regions.

De-Bashan L, Bashan Y. Hyperconcentrated cultures of Scenedesmus obliquus: Increased pigment and lipid content, lipid variety, and cell and population size of the microalgae Chlorella spp. Partitioning of transfer and carboxylation components of intracellular resistance to photosynthetic CO 2 fixation: These results are useful for subsequent applications of the encapsulated algae, such as biomonitoring and bioremediation. This paper describes the immobilization technique of microalgae in calcium alginate beads.


Review of practical aspects. Otros trabajos iniciales fueron los de Van Donk et al. Photosynthetic rate estimation Photosynthetic rates P of immobilized cell cultures of S. Cultures of immobilized S. A similar trend was reported by Bartual et al. However, the optimum light intensity in immobilized cultures has not been reported, as growth and content of proteins within the matrix can exist, due to light availability.

Phycological Society of America. Growth The growth of immobilized S. Each species is usually characterized by a maximum growth rate under ideal conditions of growth Bartual et al. Light limitation by the self-shading effect is one of the main causes affecting algae growth and their protein content in immobilized systems Pane et al.

In the analysis of P-I curves it is important to take into account the conditions of the culture, such as high cell density cultures, which may cause considerable light attenuation.

Results and Discussion Activity of immobilized algae The photosynthetic rates reached for high and low stocking density of immobilized S. It is scenedemsus to reach high contents of chlorophyll and high photosynthetic rates for immobilized cells in alginate for species such as Chlorella sp. Two types of beads were prepared, one with stocking cell density of 6.

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A topic of interest is the utilization of algal biomass, but this depends on its biochemical composition, which is affected by the nutrients concentration and culture medium composition, as well as, temperature, crecimento intensity and wavelength. Mendoza-Espinosa 2M. Effects of Dursban 4E and its carrier on three microalgal species during exponential and P-limited growth.


Effect of immobilized microalgal bead concentrations on wastewater nutrient removal. Growth and nutrient removal in free and immobilized planktonic green algae isolated from pig manure. About beads of calcium alginate 2. Beads with high cell density showed an increase of the photosynthetic rate with a maximum of 0. The photosynthetic variables obtained for immobilized S. La microalga Scenedesmus obliquus fue inmovilizada en esferas de Ca-alginato en dos densidades celulares del cultivo 6.

The calcium alginate beads were prepared with the method described by Tam and Wong Other factors such as CO 2 and crecimientp should be taken into consideration. Bajo condiciones de laboratorio Twist et al. The photosynthetic parameters obtained for immobilized S.

Analysis of effective light in different photobioreactors: Los trabajos de Delgadillo y Pineda constituyen los primero acercamientos con esta perspectiva.

This difference is attributed to the fact that the photosynthetic rate was estimated to a light intensity 60 W m -2 and not for a maximum obtained to different intensities photosynthetic curve as reported in the present study.

Conclusions The photosynthetic parameters obtained for immobilized S. The stability of beads, the kinetics of growth and the concentrations of microalgae inside the beads were determined.

Therefore, it is important to determine and use ed culture conditions for the correct interpretation of the experimental results.