Nanofiltration for separation and purification of saccharides from biomass

Abstract

Saccharide production is critical to the development of biotechnology in the field of food and biofuel. The extraction of saccharide from biomass-based hydrolysate mixtures has become a trend due to low cost and abundant biomass reserves. Compared to conventional methods of fractionation and recovery of saccharides, nanofiltration (NF) has received considerable attention in recent decades because of its high selectivity and low energy consumption and environmental impact. In this review the advantages and challenges of NF based technology in the separation of saccharides are critically evaluated. Hybrid membrane processes, i.e., combining NF with ultrafiltration, can complement each other to provide an efficient approach for removal of unwanted solutes to obtain higher purity saccharides. However, use of NF membrane separation technology is limited due to irreversible membrane fouling that results in high capital and operating costs. Future development of NF membrane technology should therefore focus on improving material stability, antifouling ability and saccharide targeting selectivity, as well as on engineering aspects such as process optimisation and membrane module design.

New technology for preparing energetic materials by nanofiltration membrane (NF): rapid and efficient preparation of high-purity ammonium dinitramide (ADN)

“…13, the retention rate of solutes by NFs increased with the increase of solution dilution, in which the retention effect of SO 4 2− and NO 3 − increased signicantly, this is mainly because in the process of solute separation by NF, as a large amount of solvent passes through the membrane into the permeate, the volume of retained liquid is concentrated, thus the concentration of solute increases, and the polarization effect of the concentration difference between the two sides of the membrane is signicant, resulting in higher osmotic pressure and lower retention rate. 58,59 The higher the concentration of raw material liquid, the more obvious this effect is, so when the higher the dilution, the less obvious the decrease of retention rate brought by the concentration polarization effect, and thus the higher the retention rate. Considering the need of puried ADN solution to concentrate crystallization and the inuence of the ltration rate, 1× dilution of ADN raw synthetic solution is the optimal ltration condition.…”

Current Status of Cellulosic and Nanocellulosic Materials for Oil Spill Cleanup

“…Matrix polymer coatings can also be formed in-situ, such as polyhemiaminals (PHAs) [ 90 ], polydopamine/PEI [ 58 ], or polymerization resins of methacrylates (styrene-butyl acrylate SBA, ethylene dimethacrylate EDMA) [ 123 ]. Also, metal oxide frameworks (MOFs) [ 124 ] or inorganic clay species [ 125 ], which are not strictly polymeric but also do not covalently crosslink with cellulose, can stabilize the final aerogel.…”

Technical assessment of nanofiltration process for concentration of cranberry juice and recovery of benzoic acid

“…The advantage of nanofiltration over reverse osmosis and osmotic distillation in the concentration is that the energy consumption can be reduced (Patel et al ., 2022). Nowadays, nanofiltration has been widely applied in the food industry, such as for sugars fractionation (Luo et al ., 2018), recovery and purification of fermentation products (Li et al ., 2021), skim milk concentration (Meyer et al ., 2017), coffee extract concentration (Laurio et al ., 2022), enhancing fish sauce quality (Lai & Nguyen, 2021) and removing the chlorate from skim milk (McCarthy et al ., 2022). Cranberry juice is known to contain a significant amount of organic acids, which is the reason for the high acidity and organoleptic properties of juice (Pelletier et al ., 2017).…”