Effects of size and form of Arthrospira Spirulina biomass on the shrinkage and porosity during drying

摘要: Abstract In many productions, Arthrospira sp. biomass is dried in cylinders or layers form. Drying involves shrinkage that changes organoleptic qualities and aspects. To understand the change, similar production forms sizes were convective at 45 °C with 2–6 mm initial diameter 1 4 mm thin layers. Total layer size- cylinder length ratio only 95%. Thicknesses direction most significant 28–65%. Cylinders present anisotropicity shrink more perpendicular to support than parallel one. All curves several stages. The first ideal stage of goes until half moisture content lower final porosity by cylinders. End decreases when decreases. around 15–20% increases during 2nd up porosities between 68% 80%.