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Table 3 Cellulose crystallinity index (CrI) before and after DA and hydrothermal pretreatments for different substrates

From: Assessing the molecular structure basis for biomass recalcitrance during dilute acid and hydrothermal pretreatments

Substrate Pretreatment conditions CrI (%) before pretreatment CrI (%) after pretreatment Reference
Rice straw DA pretreatment: 1% H2SO4, 180°C, 4 min 57.0a 65.0a [84]
Poplar DA pretreatment: 2% H2SO4, 190°C, 70 s 49.9a 50.6a [32]
Corn stover DA pretreatment: 3% H2SO4, 180°C, 90 s 50.3a 52.5a [32]
Loblolly pine DA pretreatment: 1st stage: 0.5% H2SO4, 180°C, 10 min; 2nd stage: 1.0% H2SO4, 200°C, 2 min. 62.5b 69.9b [22]
Switchgrass DA pretreatment: 5% H2SO4, 190°C, 1 min 44.0b 52.0b [85]
Poplar Hydrothermal pretreatment: 200°C, 10 min 49.9a 54.0a [32]
Tamarix ramosissima Hydrothermal pretreatment: 180°C, 9 min 41.0a 51.4a [86]
Costal Bermuda grass Hydrothermal pretreatment: 170°C, 60 min 50.2a 69.4a [87]
  1. a: CrI was measured by X-ray diffraction (XRD) method[88].
  2. b: CrI was measured by solid-state NMR technique[89].
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Biotechnology for Biofuels

ISSN: 1754-6834

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