Recovery of biobased 2,3-butanediol from fermentation broths by liquid-phase adsorption onto phenylboronate polymers

Adsorptive separation of saccharides and polyols over materials functionalized with boronate groups

“…However, these weakly bonded substrates can be readily desorbed by washing with water, ethanol, or water-ethanol mixtures. [59][60][61] Isolation of a target product from a mixture of similar molecules has been the goal of numerous studies. Most frequently, the separation is based on differences of complexation constants of the adsorbates.…”

“…corresponding to an equimolar loading with respect to boron content upon addition of at least 1 equivalent of NaOH to one equivalent of substrate. 60 Cyclic adsorption operations with boronate materials typically imply adsorption under basic and desorption under acidic conditions. However, placing the swollen loaded geltype polymers into an acidic or neutral solution causes shrinkage of the materials.…”

“…However, these weakly bonded substrates can be readily desorbed by washing with water, ethanol, or water–ethanol mixtures. 59–61…”

“…However, the capacity could be increased to 250 mg 2,3-butanediol g polymer −1 corresponding to an equimolar loading with respect to boron content upon addition of at least 1 equivalent of NaOH to one equivalent of substrate. 60…”

Selective extraction of 1,3‐propanediol by phenylboronic acid‐based ternary extraction system

“…Combined with dihydroxy molecules, a cyclic PBA ester is formed, which hydrolyzes and releases dihydroxy molecules under acidic conditions. 21 In other words, the reversible binding and release of dihydroxy molecules can be achieved by adjusting the pH of the system. Additionally, the PBA compound with benzene ring and side chain enhances its hydrophobicity.…”