Large scale laboratory cultures of Ankistrodesmus gracilis (Reisch) Korsikov (Chlorophyta) and Diaphanosoma biergei Korinek, 1981 (Cladocera)

Abstract

Large-scale lab culture of Ankistrodesmus gracilis and Diaphanososma birgei were evaluated by studying the biology and biochemical composition of the species and production costs. Ankistrodesmus gracilis presented exponential growth until the 6 th day, with approximately 144 x 10 4 cells.mL , aumentando novamente a partir do décimo segundo dia. A alga clorofícea A. gracilis e o zooplâncton D. birgei possuem aproximadamente 50 e 70% de proteína (PS), respectivamente, com teor de carboidrato acima de 5%. A eletricidade e mão de obra foram os itens mais dispendiosos e, de acordo com os dados obtidos, a temperatura, nutrientes, disponibilidade de luz e manejo do cultivo, foram fatores determinantes sobre a produtividade. Os resultados indicam que o meio NPK (20-5-20) pode ser utilizado diretamente como uma alternativa de cultivo em larga escala, considerando o baixo custo de produção, promovendo adequado crescimento e valor nutricional para A. gracilis e D. birgei.

Effects of some parameters in upscale culture of Haematococcus pluvialis Flotow

“…Likewise, dry weight had low rates in the 13-L (1.82 pg.cell ) on the 13 th day. Lipids contents in this study were higher than those for the algae Chlorophyceae A. gracilis (7.48% dry weight) cultivated in an 850-L volume (Sipaúba-Tavares and Pereira, 2008).…”

“…Their presence improved the growth of H. pluvialis. The addition of vitamin B complex is routine in the laboratory and results showed its influence in the improvement of Ankistrodesmus gracilis growth, a Chlorophyceae easily found in the region, with high nutritional value as feed for fish larvae (Sipaúba-Tavares and Pereira, 2008).…”

Cinética de crescimento da microalga Pseudokirchneriella subcaptata (Korshikov) Hindak (Chlorophyceae) em água natural enriquecida com o fertilizante NPK

“…These microorganisms may also serve multiple functions in biotechnological studies, such as bioremediation of metals and other pollutants, toxicology testing (MOREIRA-SANTOS et al, 2004), solar energy bioconservation (energy storage), ingredients for feed, fermentation (methane production), extraction of various products such as pigments and algins ROCHA, 2003), biodiesel production, and food supplementation.…”

“…Studies suggested that temperature, nutrients, light availability and culture management were determining factors on microalgae productivity PEREIRA, 2008). Thus, the use of alternative media, such as NPK for the development and growth of algal biomass has been implicated as an important increase in production of microalgae in large scale (HARDY; CASTRO, 2000;PEREIRA, 2008;SIPAÚBA-TAVARES et al, 2009, 2011.…”

“…Thus, the use of alternative media, such as NPK for the development and growth of algal biomass has been implicated as an important increase in production of microalgae in large scale (HARDY; CASTRO, 2000;PEREIRA, 2008;SIPAÚBA-TAVARES et al, 2009, 2011. According to Sipaúba-Tavares and Rocha (2003) the NPK fertilizer is an alternative media cheaper and as efficient as the standard synthetic medium CHU 12 .…”