CHAPTER I
LITTERATURE REVIEW
30
3.10.5 Extrusion and Drying
Drying can be done in the shade, in a stream of air at room temperature, under a mosquito net
(Fox, 1999). The drying time depends on the thickness of the biomass, temperature, and
humidity. It typically takes around 4 hours, but can be as quick as one hour (Jourdan et al.,
1999).
3.10.6 Culture mediums
Table 4: Culture mediums used for spirulina species
Species
Culture medium
Ingredients and proportions Reference
Arthrospira
platensis
Hiri
Natron
16 g/l
Table Salt NaCl
1 g/l
MgSO4
0.1 g/l
FeSO4
0.01 g/l
(NH₄)3PO₄
0.1 g/l
K₂SO₄
0.5 g/l
CaCl₂
0.1 g/l
Urea
0.1 g/l
Fresh water
1 l
Hiri (2008)
Spirulina maxima
Spirulina platensis
Zarrouk
Solution A9
NaHCO₃
16 g/l
K₂HPO₂
0.5 g/l
NaNO₃
2.5 g/l
K₂SO₄
1 g/l
MgSO₄, 7H₂O
0.2 g/l
CaCl₂
0.04 g/l
FeSO₄, 7H₂O
0.01 g/l
EDTA
0.08 g/l
Zarrouk
(1966)