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Applied Biological Chemistry

Table 7 Chemical composition of residual liquid

From: Simultaneous isolation of cellulose and lignin from wheat straw and catalytic conversion to valuable chemical products

Entry

H2SO4 concentration (wt%)

Sugar

First stage

Second stage

Xylose

Mannose

Arabinose

Galactose

Glucose

1

0.5

/

+  + 

+ 

+ 

Trace

Trace

2

0.5

1.5

+  +  + 

 + + 

+ + 

+ 

Trace

  1. Reaction conditions: (1) 150 °C for 6 h in 1,4-dioxane/H2O (2:1, v/v); (2) 180 °C for 2.5 h
  2. a+ : Detected
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