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Fig. 1 | AMB Express

Fig. 1

From: Primary recovery of hyaluronic acid produced in Streptococcus equi subsp. zooepidemicus using PEG–citrate aqueous two-phase systems

Fig. 1

Effect of polyethylene glycol (PEG) molecular weight (MW, 6000 and 8000 g mol−1) and tie-line length (TLL, 23–43% w/w) on hyaluronic acid (HA) recovery in the bottom phase of PEG–citrate aqueous two-phase systems (ATPS). Two pure HA solutions of different molecular weights: 1–2 MDa (HA1.5) and 3–4 MDa (HA3.5) were evaluated. HA solutions were loaded to the ATPS at a final concentration of 10% (w/w). ATPS volume ratio (VR) was 1.0. Bars represent the sample mean ± SEM of experimental triplicates. Bars within the same graph that do not share the same uppercase letter are significantly different (p < 0.05)

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