Michael Streicher
Senioringeniør
Sammendrag
Brown seaweed A.nodosum has been widely used for feed and biostimulant purposes for many years. However, due to its high-water content (ranging >80% MC) it presents challenges like increasing costs of transportation and storage for downstream processing. Therefore, an effective dewatering step is essential to reduce the moisture content, concentrate the biomass and improve handling and processing efficiency. Mechanical dewatering is commonly applied as a pretreatment step in biorefining as it removes readily mobile water and reduces the moisture available for microbial deterioration during handling and storage. However, the efficiency of mechanical dewatering can be limited by the strong water-holding capacity of seaweed tissues and cell-wall components, resulting in substantial residual moisture in the pressed biomass. In this context, this study evaluates calcium chloride (CaCl2 ) and magnesium chloride (MgCl2 ) as pretreatment agents prior to hydraulic pressing of A. nodosum, assessing their effects on dewatering efficiency and the partitioning of protein-bound amino acids between the liquid and solid fractions.
Forfattere
Ralf Rautenberger Michael Streicher Minini Léo Roosvall Sara Sdena Nunes Oddvar Harald OttesenSammendrag
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Sammendrag
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