Nostoc sp cultivation under different light intensities for biomass and phycobiliproteins
DOI:
https://doi.org/10.5433/1679-0367.1999v20n2p67Keywords:
Phycobiliproteins, Cyanobacteria, Nostoc sp, Phycoerithrin, Phycocianin.Abstract
The aim of this work was to explore the autotrophic growth of Nostoc sp in relation to different light intensities, in order to obtain a greater production of biomass and phycobiliproteins. It was undertaken cultures in three light intensities, 500. 1000 and 2000 lux, using mineral medium BG 11. Production of biomass increased with increase of the light in tensitr. The greater production ocurred at 21th day for all light intensities, with 2000 lux obtaining the better yield of biomass (1,034 g/L), corresponding to the productivity of 0,049 g/L day. The greater production of total phycobiliproteins acurred in 1000 lux, for both the phycobiliproteins, phycocianin and phycoerithrin.
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