Influence of inoculum age and concentration in Spirulina platensis cultivation

Spirulina platensis: process optimization to obtain biomass

“…there is a correlation between the increase of luminous energy received and cell growth, although limited by certain enzymes produced during growth (PELIZER et al, 2002). This boundary is called light saturation point, which is 5-10 Klux for cyanobacteria (BALLONI et al, 1980).…”

“…Some production strategies include the use of fed batch type process (for controlling nutrient) and simple batch process. Spirulina platensis is an African species which develops in middle high temperatures (25-26 °C), alkaline pH (9.5 to 11), and high salt concentrations ranging from 8.5 to 200 g/L; therefore, their production is relatively simple and does not require a complex culture medium and high cost, thus enabling carrying out the present study (ARRUDA et al, 2009;PELIZER et al, 2002;PELIZER;MORAES, 2009). Arthrospira (Spirulina) sp., is a filamentous cyanobacterium, autotroph, also known as blue-green algae, which owes its name to the nature of its helical or spiral filaments.…”

Cultivation of Arthrospira (spirulina) platensis in desalinator wastewater and salinated synthetic medium: protein content and amino-acid profile

“…Similar values for total protein, ranging from 46% to 50% in dry weight, were reported by Richmond (13) in A. platensis, but the values in desalinator wastewater were lower than that presented by Oliveira et al (9). Pelizer et al (11), studying different initial inocula, reported 55.0 -61.0% protein content. Similar values were found by Rafiqul et al (12), who found 58.6% of total protein content when using Zarrouk medium.…”

Arthrospira (Spirulina) platensis cultivation in tubular photobioreactor: Use of no-cost CO2 from ethanol fermentation

“…After 6-8 days of cultivation [22], the culture was filtered, washed with physiological saline solution to remove adsorbed nitrates, and resuspended in nitrogen-free cultivation medium. Starting cell concentration was set at 400 mg L À1 [10].…”