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handle: 10261/266263
[ES] Se estudia el efecto de 7 bacterias ácido lácticas (Carnobacterium piscicola, Lactobacillus brevis, L. casei ssp. casei, L. helveticus, Lactococcus lactis spp lactis, Leuconostoc mesenteroides spp mesenteroides y Pediococcus acidilactici) en el crecimiento de cultivos de la microalga Isochrysis galbana. Los cultivos se realizaron en volúmenes de 250 ml y de 5 litros (con o sin adición de nutrientes). En todos los casos, la adición de las bacterias mejoró el crecimiento de la microalga, especialmente en el caso de L. mesenteroides spp mesenteroides y P. acidilactici. El efecto estimulador del crecimiento podría deberse a una mejora de la calidad nutricional del medio. La aplicación de modelos cinéticos permitió obtener un conjunto de parámetros con significado biológico interesante para la aplicación de estas cepas bacterianas en el cultivo de I. galbana
[EN] The effect of 7 lactic-acid bacteria (Carnobacterium piscicola, Lactobacillus brevis, L. casei ssp. casei, L. helveticus, Lactococcus lactis spp lactis, Leuconostoc mesenteroides spp mesenteroides y Pediococcus acidilactici) on the growth of the microalgae Isochrysis galbana has been studied. Cultures were assayed in 250 ml and 5 L volumes, with or without nutrients addition. All the bacteria strains enhanced growth of the microalgae, especially L. mesenteroides spp mesenteroides y P. acidilactici. The culture improvement was probably caused by an enhancement of the nutritional quality of the medium. Kinetic models were applied to the observed data and several parameters with biological significance were obtained. These parameters can be valuable for the use of the bacteria strains in the culture of I. galbana
4 pages, 2 tables, 1 figure.-- XI Congreso Nacional de Acuicultura, Vigo 25-28 de septiembre de 2007
Estudio financiado por los Proyectos PROBE (Q5RS-2000-31457) y FEDER (1FD97-0044-C03-01/02/03)
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