Enhanced biomass and phycocyanin production of Arthrospira (Spirulina) platensis by a cultivation management strategy: Light intensity and cell concentration.

This work investigated the cultivation of Arthrospira (Spirulina) platensis BP in a photobioreactor under light intensities of 635, 980, 1300, and 2300 µmol m s, using a semi-continuous mode to keep cell concentration at optical densities (OD) of 0.4, 0.6, and 0.

The potential of polysaccharide extracts from Caulerpa lentillifera waste.

Caulerpa is a marine macroalgae and is rich in polysaccharides, which have the potential for immunostimulatory and anticoagulant activity. The objective of this work was to increase the value of C. lentillifera waste by polysaccharide extraction.

Stepwise extraction of high-value chemicals from () and an economic feasibility study.

() consists of diverse high-value chemicals, such as phycocyanin, lipids/total fatty acids (TFA), and polysaccharides, which have been used for food, cosmetic and pharmacological applications. This study compared various stepwise extraction processes for these high-value chemicals. Considering the yield and properties of extracts, the most suitable extraction order was phycocyanin, lipid/TFA and polysaccharides.

Separation and purification of phycocyanin from Spirulina sp. using a membrane process.

The highest purity ratio of phycocyanin extract was obtained when fresh biomass was used as raw material. The crude extract was purified by membrane process using microfiltration and ultrafiltration. Membrane of pore sizes 5 μm, at feed flow rate of 150 mL min(-1), permeate flux of 58.

Cultivation of Spirulina platensis using pig wastewater in a semi-continuous process.

The effluent from anaerobic digestion contains organic nitrogen and phosphorus, which are both required for growth of Spirulina platensis. Effluent (20%) from the upflow anaerobic sludge blanket (UASB) from a pig farm, supplemented with 4.5 g/l sodium bicarbonate (NaHCO(3)) and 0.