CHAPTER II
MATERIALS AND METHODS
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Figure 51: an oven set to 40°C
Figure 50: the spirulina biomass
The laboratory oven was preheated to a low temperature, usually around 40-50°C, as higher
temperatures can reduce Spirulina quality. The tray was then placed in the oven. The biomass
was left to dry for several hours while frequently checked. Drying times varied depending on
the thickness of the biomass layer and the specific oven, typically taking 8-12 hours.
Once the Spirulina was completely dry, it was crispy and brittle. The tray was then removed
from the oven.
Figure 49: spirulina biomass in a crystallizer