Skip to main content

Table 3 Ester- and ether-linked hydroxycinnamic acid content in raw and HWP CWR

From: Evaluating polymer interplay after hot water pretreatment to investigate maize stem internode recalcitrance

  Raw maize stem 20-min HWP 40-min HWP
M7 M9 M7 M9 M7 M9
p-coumaric acid (g.100 g−1 CWR)
 Ester linked 2.58 (± 0.4) 2.20 (± 0.6) 2.87 (± 0.2) 2.66 (± 0.7) 2.76 (± 0.2) 2.31 (± 0.1)
Ferulic acid (g 100 g−1 CWR)
 Ester linked 0.55 (± 0.01) 0.50 (± 0.01) 0.71 (± 0.01) 0.60 (± 0.02) 0.42 (± 0.01) 0.34 (± 0.01)
 Diferulic acid ester linked 0.11 (± 0.01) 0.09 (± 0.01) 0.15 (± 0.01) 0.09 (± 0.01) 0.02 (± 0.01) 0.02 (± 0.01)
 Ether linked 0.44 0.42 0.27 0.34 0.37 0.39
  1. Results are expressed as means of three repetitions with standard deviation in brackets