Aqueous two-phase extraction of 1,3-propanediol from glycerol-based fermentation broths

Aqueous two-phase extraction, identification and antioxidant activity of anthocyanins from mulberry (Morus atropurpurea Roxb.)

“…The mono-phasic area was below the bimodal curve. Two extreme points of phase formation occurred, one at 57.5% (w/w) ethanol, 2.3% (w/w) ammonium sulphate, and another at 5.6% (w/w) ethanol and 37.2% (w/w) ammonium sulphate (Li et al, 2009), which was in agreement with our result (Fig. 1).…”

“…The phase diagram of ethanol and ammonium sulphate was prepared by a turbidity titration method as described by Li, Jiang, Zhang, and Xiu (2009). Ethanol was added to an ammonium sulphate solution drop by drop.…”

Extraction and Purification of Anthocyanins from the Fruit Residues of Vaccinium uliginosum Linn

“…Comparing with the previous phase diagram [25], the upper limit line of two phases was added in figure 1. As shown in figures 2 and 3, the partition coefficient and recovery of anthocyanins increased dramatically with increasing concentrations of (NH 4 ) 2 SO 4 and ethanol, which indicated that anthocyanins tended to concentrate in the top phase.…”

Three-liquid-phase salting-out extraction of effective components from waste liquor of processing sea cucumber

“…The aqueous two-phase system have been successfully used in separation of bio-based chemicals, e.g. 1,3-propanediol, 2,3-butanediol, biobutanol, lactic acid and succinic acid Jiang et al, 2009;Sun et al, 2009Sun et al, , 2014Li et al, 2009Li et al, , 2010Li et al, , 2011Dai et al, 2011), natural products, e.g. ␣-galactosidase, oil and alginates and recombinant human albumin (Dhananjay and Mulimani, 2009;Dong et al, 2012).…”