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Table 1 Composition analysis (as percentage of total dry weight) for the July and October harvests of Cave-in-Rock (CIR) and Alamo switchgrass.

From: Evaluation of ammonia fibre expansion (AFEX) pretreatment for enzymatic hydrolysis of switchgrass harvested in different seasons and locations

  CIR: July CIR: October Alamo: July Alamo: October
Glucana 30.6 ± 0.2d 33.6 ± 0.5e 32.6 ± 0.3f 32.9 ± 0.2f
Sucrose 5.1 ± 0.3d 2.4 ± 0.2e 3.8 ± 0.2f 3.8 ± 0.4f
Xylan 19.4 ± 0.3d 25.3 ± 0.2e 22.8 ± 0.1f 23.0 ± 0.2f
Arabinan 2.0 ± 0.1d 2.0 ± 0.1f 1.8 ± 0.1e 2.0 ± 0.1d
Ligninb 10.4 ± 0.4d 16.7 ± 0.5e 15.4 ± 0.4f 17.2 ± 0.2e
Solublesc 26.0 ± 0.6d 15.8 ± 0.1e 18.1 ± 0.2f 15.0 ± 0.2g
Ash 5.0 ± 0.06d 3.9 ± 0.02e 2.5 ± 0.03f 2.0 ± 0.01g
Closure 95.4 ± 0.8 97.3 ± 0.7 93.2 ± 0.6 92.1 ± 0.4
  1. Different letters (d, e,f,g) represent significant differences (P < 0.05) in composition across the different feedstocks.
  2. aDoes not include soluble glucose; bacid insoluble (Klason) lignin; cincludes both water and ethanol solubles.