Filtration of subcritical water hydrolysates from red macroalgae byproducts with ultraporous ceramic membranes for oligosaccharide and peptide fractionation

Processes for the valorization of microalgal biomass cultivates in piggery wastewater

“…Also, it is a mature technology which requires low energy, can be easily scaled up with technical viability, operated in continuous mode and mild conditions, can be integrated into other chemical processes(Alavi & Ciftci, 2023) and it involves less amounts of additives of solvents and chemicals. So, the above final permeate stream from MF (6.73 m 3 /d, 9.9 g/L of peptides, 1.8 g/L of monosaccharides and, 7.1 g/L of by-products) was subjected to ultrafiltration (UF) with membranes in series composed of polyether sulfone (PES) and pore size of 50 (Flux = 27.4 L/m 2 /h), 10 (Flux = 9.85 L/m 2 /h), and 5 kDa (Flux = 8.15 L/m 2 /h) at a constant transmembrane pressure (TMP) of 1.1 bar(Trigueros et al, 2022) to finally obtain a stream of 2.83 m 3 /d with a peptide concentration of 1.8% (Table…”