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Table 1 Composition of cell-wall dehydrogenation polymers (CWDHPs) and their alkali-insoluble residues

From: Epigallocatechin gallate incorporation into lignin enhances the alkaline delignification and enzymatic saccharification of cell walls

CWDHP Alkaline pretreatment (°C) Concentration in CWDHP or alkali-insoluble residues (%)
   Lignin Glucose Xylose Arabinose Galactose
Control None 20.2aa 29.6 g x11.5b 16.2b 7.3bc
  70 16.2b 32.0f 11.4b 16.5b 8.0a
  100 17.6b 34.0e 11.4 b 16.5b 7.1d
  130 16.9b 35.9d 12.9a 18.3a 5.6e
EGCG None 18.4ab 30.4 fg 11.5b 16.0b 7.4b
  70 8.9c 40.9c 11.6b 14.9 c 7.1 cd
  100 6.5d 43.5b 9.9c 12.3d 7.2 cd
  130 5.5d 48.8a 9.7c 10.8e 4.4f
Analysis of variance      
CWDHP *** *** *** ***
Pretreatment *** *** ** ** ***
CWDHP X Pretreatment Interaction *** *** *** *** ***
  1. The CWDHP were formed with monolignols (control) or with monolignols plus epigallocatechin gallate (EGCG) and pretreated with 0.075 M sodium hydroxide (15% w/w loading) at various temperatures.
  2. a Means within columns with unlike letters differ (P < 0.05).
  3. P < 0.1; * P < 0.05; ** P < 0.01, *** P < 0.001.