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Table 4 Effect of χ [AMIM]ClIa on the enzymatic hydrolysis yield of pretreated cellulose by organic electrolyte solution (OES).

From: Pretreatment of microcrystalline cellulose in organic electrolyte solutions for enzymatic hydrolysis

Time, hours Hydrolysis yield (%) at different values of χ [AMIM]Clb  
  Untreated cellulose Hot-water 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
3 1.28 ± 0.17d, e 0.78 ± 0.07e 0.85 ± 0.075e 0.91 ± 0.21e 2.22 ± 0.28d 3.04 ± 0.27c 3.02 ± 0.20c 3.34 ± 0.38b, c 3.17 ± 0.40c 4.15 ± 0.56a 3.81 ± 0.13a 3.63 ± 0.49a.b 3.62 ± 0.30ab
6 1.88 ± 0.19cd 1.03 ± 0.12e 1.33 ± 0.04e 1.41 ± 0.23d, e 3.22 ± 0.47c 5.13 ± 0.49b 5.24 ± 0.33b 6.77 ± 0.42a 5.64 ± 0.54b 7.40 ± 0.75a 7.35 ± 0.29a 7.01 ± 1.27a 7.06 ± 0.60a
12 2.49 ± 0.38f 2.68 ± 0.11f 2.5 ± 0.12f 2.51 ± 0.33f 5.98 ± 0.49e 8.74 ± 0.75d, e 10.02 ± 0.55c, d 13.88 ± 2.12b 10.85 ± 0.62c 13.9 ± 1.68a, b 14.86 ± 0.7a 13.57 ± 2.27a.b 13.62 ± 0.84a.b
24 3.96 ± 0.30f 4.09 ± 0.12f 4.02 ± 0.27f 4.03 ± 0.38f 9.53 ± 0.44e 15.05 ± 1.63d 16.48 ± 0.97d 22.35 ± 3.53b 18.29 ± 1.17c 23.18 ± 2.78a, b 24.79 ± 0.77a 23.07 ± 2.85a.b 23.53 ± 1.41a.b
48 5.76 ± 0.60g 6.69 ± 0.39g 6.28 ± 0.47g 6.62 ± 0.64g 14.49 ± 0.37f 24.18 ± 2.1e 27.43 ± 1.64e 36.69 ± 5.03c 30.98 ± 1.47d 39.81 ± 3.57b 44.34 ± 2.43a 39.38 ± 4.5b 43.19 ± 2.6a, b
72 7.50 ± 0.87f 8.62 ± 0.70f 8.12 ± 1.07f 8.52 ± 1.22f 18.87 ± 0.76e 31.45 ± 2.92d 38.76 ± 4.37c 47.51 ± 5.77c 43.5 ± 3.1c 54.08 ± 3.46ab 53.03 ± 8.92a, b 53.23 ± 5.84b 59.57 ± 6.07a
  1. laMolar fraction of 1-allyl-3-methylimidazolium chloride ([AMIM]Cl)/OES.
  2. lbIn total, 468 runs were conducted. The data in each cell are based on six runs from two parallel experiments, each of which gave three parallel tests, respectively. Mean values with the same superscript letters on the same horizontal row are not significantly different. The 95% confidence level was set at P < 0.05.