Open Access

Erratum to: Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass

Biotechnology for Biofuels20169:263

https://doi.org/10.1186/s13068-016-0643-6

Received: 10 October 2016

Accepted: 11 October 2016

Published: 6 December 2016

The original article was published in Biotechnology for Biofuels 2016 9:97

Erratum to: Biotechnol Biofuels (2016) 9:97 DOI 10.1186/s13068-016-0505-2

Unfortunately, after publication of this article [1], it was noticed that the capturing of Table 4 during the production process introduced several items in the ‘Sugar Yields’ column listed in the wrong row. The corrected table can be seen in this erratum (Table 4).
Table 4

Comparison of hydrothermal/chemical pretreatment followed by mechanical refining and hydrothermal/chemical pretreatment alone or mechanical refining alone

Sample

Pretreatmenta

Milling energy (kWh/ton)b,c

Sugar yield (%)d

Reference

Hardwood chips

Sodium carbonate

NA

42.11 (total sugar)

[53]

Sodium carbonate + PFI milling

360–1800

46.90–53.12 (total sugar)

Sodium carbonate + disk milling (12 in. diameter)

698

69.51 (total sugar)

Sodium carbonate + disk milling (42 in. diameter)

67–147

62.48–66.51 (total sugar)

Japanese cedar

Ozonolysis

NA

28–68 (glucose)

[54]

29–44 (xylose)

Disk milling

4167–26,389

38–75 (glucose)

26–45 (xylose)

Ozonolysis + disk milling

8333–22,222

71–94 (glucose)

44–59 (xylose)

Lodgepole pine trees

Disk milling

615.9

11.3 (glucose)

[52]

Hot water (initial pH 5.0) + disk milling

537.0

33.1 (glucose)

Acid (initial pH 1.1) + disk milling

335.6

39.6 (glucose)

SPORL (initial pH 4.2) + disk milling

499.3

84.1 (glucose)

SPORL (initial pH 1.9) + disk milling

134.5

92.2 (glucose)

Eucalyptus chips

Disk milling

990

72.94 (total sugar)

[65]

Sodium hydroxide impregnation + disk milling

630

80.77 (total sugar)

Magnesium hydroxide impregnation + disk milling

430

91.53 (total sugar)

Hinoki cypress

Disk milling

853

50 (glucose)

[74]

Steam treatment + disk milling

744–1489

96.8 (glucose)

Eucalyptus chips

Disk milling

408

45 (glucose)

Steam treatment + disk milling

192–458

98.4 (glucose)

Eucalyptus chips

Hot water

NA

50 (glucose)

[55]

Hot water + disk milling

167

101.7 (glucose)

Eucalyptus chips

Hot water

NA

3.1–65.2 (total sugar)

[37]

Hot water + ball milling

1436

45.6–66.7 (total sugar)

Rice straw

Hot water

NA

97.5 (glucose)

[62]

Hot water + mechanical refining

250–583

97.3–99.5 (glucose)

Oil palm mesocarp fiber

Disk milling

5250

30.2 (glucose)

[56]

30.6 (xylose)

Superheated steam + disk milling

1417–3028

26.0–47.8 (glucose)

24.1–42.1 (xylose)

Hot water + disk milling

4083–4972

46.3–91.1 (glucose)

10.1–54.3 (xylose)

Corn stover

Alkali deacetylation + disk milling (36 in. diameter)

128–468

85.9–91.7 (glucose)

[42]

81.1–86.2 (xylose)

Sugarcane bagasse

Alkaline + disk milling

11,111

77 (glucose)

[63]

67 (xylose)

Sugarcane bagasse

Hot water

NA

72.1–78.7 (total sugar)

[75]

Hot water + PFI refining

82.1–87.2 (total sugar)

Wheat straw

Hot water

NA

28.1–72.4 (total sugar)

[59]

Hot water + PFI refining

28.3–75.5 (total sugar)

Oil palm mesocarp fiber

Ball milling

NR

7.3–10.3 (glucose)

[38]

12.2–14.9 (xylose)

Alkaline

39.6–63.9 (glucose)

21.1–46.5 (xylose)

Alkaline + ball milling

97.3 (glucose)

63.2 (xylose)

Corn stover

Acid impregnation + dilute acid

NA

69–73 (glucose)

[58]

55–58 (xylose)

Alkali deacetylation + acid impregnation + dilute acid

80–83 (glucose)

76–80 (xylose)

Acid impregnation + dilute acid + PFI refining

85 (glucose)

75 (xylose)

Alkali deacetylation + acid impregnation + dilute acid + PFI refining

90 (glucose)

92 (xylose)

Corn stover

Alkali deacetylation + acid impregnation + steam explosion + PFI refining

NR

79–83 (glucose)

[49]

50–55 (xylose)

Alkali deacetylation + acid impregnation + steam explosion + extruder

82–83 (glucose)

56–58 (xylose)

Alkali deacetylation + acid impregnation + steam explosion + food processor/blending

71–75 (glucose)

49–51 (xylose)

Alkali deacetylation + acid impregnation + steam explosion + disk milling (12 in.)

75–78 (glucose)

52–54 (xylose)

Alkali deacetylation + acid impregnation + dilute acid (pilot-scale)

82 (glucose)

80 (xylose)

Alkali deacetylation + acid impregnation + dilute acid pretreatment (pilot-scale) + Szego milling

90–95 (glucose)

85–90 (xylose)

Eucalyptus chips

Hot water

NA

73.19 (glucose)

[73]

90.45 (xylose)

Hot water + disk milling

 

91.62 (glucose)

88.12 (xylose)

Rice straw

Disk milling

NR

86 (glucose)

[60]

40 (xylose)

Hot water + disk milling

 

110 (glucose)

84 (xylose)

NA not applicable, NR not reported

aHot compressed water, hydrothermal and autohydrolysis are named as hot water

bWhen energy consumption was presented as kJ/ton, it was converted into kWh/ton

cEnergy consumption is only from mechanical refining

dIf the exact sugar yields were not indicated in the reports, sugar yields were estimated or calculated as the ratio of the amount of monosaccharides produced during hydrolysis to the corresponding carbohydrate concentrations in the original samples

Notes

Declarations

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

Authors’ Affiliations

(1)
Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign
(2)
Bioenergy Research Unit, Agricultural Research Service, USDA, National Center for Agricultural Utilization Research

Reference

  1. Kim SM, Dien BS, Singh V. Promise of combined hydrothermal/chemical and mechanical refining for pretreatment of woody and herbaceous biomass. Biotechnol Biofuels. 2016;9:97. doi:10.1186/s13068-016-0505-2.View ArticleGoogle Scholar

Copyright

© The Author(s) 2016

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