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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Stock suspension of S. This paper describes the immobilization technique of microalgae in calcium alginate beads.
Partitioning of transfer and carboxylation components of intracellular resistance to photosynthetic CO 2 fixation: Phycological Society of America. Increased growth of the microalga Chlorella vulgaris when coimmobilized and cocultured in alginate beads with the plant-growth-promoting bacterium Azospirillum brasilense.

Alginate beads as synthetic inoculant carriers for the slow release of bacteria that affect plant growth. Abstract The micfoalgae Scenedesmus obliquus was immobilized in Ca-alginate beads at two stocking cell densities 6.
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The gradual proteins increase with time indicated that the growth and production of proteins began immediately after adding the beads to the culture medium, showing that the microalgae S.
The beads in each reactor were kept in suspension and mixed by means of small air diffusers through which compressed air filtered through an activated carbon filter was introduced. For both experiments, beads were incubated and harvested during the exponential growth phase of S.
Effects of Dursban 4E and its carrier on three microalgal species during exponential and P-limited growth. Reynolds indica que la tasa de crecimiento de Chlorella sp. The photosynthetic variables obtained for immobilized S. This could be advantageous, because the cultures can work with a wide range of intensity of light in tropical regions.
Photosynthetic characteristics and growth of alginate-immobilized Scenedesmus obliquus. Las dos irradiancias no mostraron diferencias significativas en las tasas de crecimiento 0. 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, light intensity and wavelength. 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.
However, in contrast to free-cell cultures, the appropriate light intensity obtained within the light limitation zone P-I curves did not cause a high biomass production and protein content. Ten beads and stock suspensions of S.
Literature cited Andersen, R. Nitrite uptake by Chlamydomonas reinhardtii cells immobilized in calcium alginate.

In the analysis of P-I curves it is important to take crecimifnto account the conditions of the culture, such as high cell density cultures, which may cause considerable light attenuation. This cellular concentration was higher than that obtained at UE m -2 s -1 from 3. However, it can be observed that in contrast to free-cell cultures, the appropriate light intensity obtained within the light limitation zone P-I curves does not guarantee a high biomass production and protein content.
Each reactor was operated with a beads concentration of approximately 2. Use of immobilized algae for estimating bioavailable phosphorus released by zooplankton. Wastewater nutrients N and P removal xe carrageenan and alginate immobilized Chlorella vulgaris. Efficiency of immobilized hyperconcentrated algae for ammonium and orthophosphorus removal from wastewater.
In the study of immobilized cells, the high activity associated to the high content of chlorophyll is related to the limitation of the light in the beads.
Changes in light intensity would result in variations in the pigment composition, concentrations of the components of electron transport chains, carboxylic enzyme activities, photosynthetic rates, dark respiration rates and biochemical composition Bartual et al.
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Therefore, it is important to determine and use optimized culture conditions for the correct interpretation of the experimental results.
The pH did not seem to interfere with algal growth. A similar trend was reported by Bartual et al. The stability of crefimiento, the kinetics of growth and the concentrations of microalgae inside the beads were determined.
Características fotosintéticas y crecimiento de Scenedesmus obliquus inmovilizada en alginato
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. As crecimkento earlier, experiments were run in triplicate. Reactors consisted of cylindrical transparent polyethylene terephthalate PTFE vessels 3 L capacity each containing 2. Materials and Methods Routine of culture Stock suspension of S.

The calcium alginate creciniento were prepared with the method described by Tam and Wong Resumen La microalga Scenedesmus obliquus fue inmovilizada en esferas de Ca-alginato en dos densidades celulares del cultivo 6. Both growth rates were lower than those reported for S. Effect of irradiance on growth, photosynthesis, pigment content and nutrient consumption in dense cultures of Rhodomonas salina Wislouch Cryptophyceae.
Viability of the marine microalgae Tetraselmis suecica grown free and immobilized in alginate beads. Scenedesmus ovalternus and Chlorella vulgaris species were used. Photosynthetic crwcimiento P of immobilized cell cultures of S.
Both irradiances showed no significant differences on growth rates 0.
