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. 2014 Mar 19;52(5):2878–2885. doi: 10.1007/s13197-014-1319-5

Table 3.

Effect of pH in [Bmim]BF4–NaH2PO4 ATPS on purification of wheat-esterase (x¯ ± SD, n = 3)

pH V R K P K E Y(%) PF
4.8 1.11 ± 0.02a 0.72 ± 0.02a 7.27 ± 0.06e 88.93 ± 0.12d 4.23 ± 0.04d
6.0 1.20 ± 0.02c 1.18 ± 0.07b 5.56 ± 0.14d 86.94 ± 0.06c 3.29 ± 0.20c
7.0 1.38 ± 0.03b 1.57 ± 0.02c 4.86 ± 0.07c 87.05 ± 0.11c 2.03 ± 0.07b
8.0 1.12 ± 0.07a 2.18 ± 0.03d 4.33 ± 0.13b 82.89 ± 0.73b 2.18 ± 0.03b
9.0 1.19 ± 0.02b 4.61 ± 0.04e 2.96 ± 0.05a 77.89 ± 0.12a 1.50 ± 0.04a

V R volume ratio, K P protein distribution coefficient, K E enzyme distribution coefficient, PF purified fold, Y yield

*a, b, c, d means within a row not sharing a common superscript differ significantly (p < 0.05)