Separation of lactic acid from fermentation broth by cross flow nanofiltration: Membrane characterization and transport modelling

Determination of the Percolation Threshold for the Oxalic, Tartaric, and Lactic Acids Transport through Polymer Inclusion Membranes with 1-Alkylimidazoles as a Carrier

“…In the fermentation processes the fermentation broth containing high quality products, for example, oxalic, tartaric, and lactic acids is obtained (5)(6)(7)(8)(9). After the fermentation process, a problem concerning the separation of the desired products occurs (10)(11)(12)(13). The basic method of these acids separation from the fermentation broth is the calcium salt precipitation (11,14).…”

Modelling and simulation of continuous L (+) lactic acid production from sugarcane juice in membrane integrated hybrid-reactor system

“…(16) shows that solute flux is influenced by convective and diffusive transport. Compare to diffusive transport, convective transport influenced more in undissociated lactic acid transport through nanofiltration membranes from sugarcane juice fermentation broth solution [25]. In Eq.…”

“…Detailed description of the selective transport of unconverted sucrose and lactic acid from fermentation broth through cross flow nanofiltration membrane module can be found in the authors' previous study [25].…”

“…The first operating condition was better in terms of lactic acid concentration as R j was comparatively low. In the case of fermentation broth, rejection of a particular solute is dependent on the presence of other solutes that may affect the pore radius (pore swelling) or the solute hydrodynamic radius [25]. High cross flow velocity and clarity of micro filtered fermentation concentration polarization problem could be kept at the minimum by high cross flow rates and clear nature of the filtered broth.…”

“…P n and S n denote lactic acid concentration and substrate concentration respectively in the permeate stream. Volumetric flux is directly dependent on the uncharged solute flux (J s ) which can be expressed through the extended Nernst-Plank equation [25] as:…”