Lactic acid separation from fermentation broths by reverse osmosis and nanofiltration

High yield lactic acid selective oxidation into acetic acid over a Mo-V-Nb mixed oxide catalyst

“…In this context, lactic acid, which is often referred as a "sleeping giant", has attracted much attention as an alternative resource for the production of important chemicals such as acrylic acid, 1,2-propanediol, 2,3-pentanedione, pyruvic acid, [6] acetaldehyde [7] and mainly the polylactic acid (PLA) polymer [8,9]. Lactic acid can be easily be obtained by fermentation of renewable sources such as sugars and starches or even waste streams (cheesy whey for instance) [10][11][12].…”

Development, Characterization and Performance Evaluation of Positively-Charged Thin Film-Composite Nanofiltration Membrane Containing Fixed Quaternary Ammonium Moieties

“…This property of the nanofiltration membrane is taken advantage of to separate a composite feed stream into streams containing different components. In industry, nanofiltration membranes find use in a host of areas such as dairy (3,4), sugar, and other food industries (5,6), pharmaceutical industries (7), pulp and paper industry (8), biotechnological industries (9)(10)(11), chemical processing industries (12,13), effluent treatment (14)(15)(16)(17), desalination of brackish and sea water (18)(19)(20), etc.…”

Polymeric Membranes for Integrated Reaction and Separation

“…This lower concentration requires additional energy input for product concentration, which makes the process economically not viable. To obtain a better understanding of the organic acid separation process, lactic acid removal from model solutions and fermentation broths using RO and NF has been studied [61,62], showing that the separation process can be fully described by considering dissociated and undissociated lactic acid as individually permeating species. These insights have been used for the development of a NF-membrane reactor.…”