Table 6.1 Molar ratio of galactose + mannose (GM) to arabinose + xylose (AX) and that of easily
hydrolysable (EH)-glucose to non-easily hydrolysable (NEH)-glucose in the monosaccharide
composition of plant materials
TotalC (%)
TotalN (%)
C/N
ratio
Saccharide
content
(g kg
À1
)
Saccharide-C/
plant-C (%)
Molar
ratio of
GM/AX
Ratio of
EH-Glc/
NEH-Glc
Herbaceous plants
Pampas grass
a
46.1
0.62
75
587
51.0
0.042
0.337
Bamboo grass
a
46.0
0.68
68
571
49.7
0.045
0.202
Goldenrod
a
47.2
0.34
139 500
42.4
0.15
0.142
Paddy rice
b
38.7
0.57
69
532
55.0
0.058
0.379
Barley
b
47.2
0.36
131 621
52.8
0.037
0.129
Woody plants
Coniferous tree
Northern Japanese hemlock
c
51.7
0.78
66
362
28.1
0.89
0.53
Korean pine
c
51.8
0.61
85
424
32.8
0.78
0.22
Japanese
thuja
c
53.2
0.34
155 252
19.0
0.85
0.30
Maries fir
(weathered
fallen trunk)
c
47.0
0.083 566 580
49.4
2.2
0.14
Deciduous tree
Japanese white
birch
c
50.7
1.0
50
259
20.5
0.52
0.37
Beech (green
l.)
d (n ¼ 25)
46.7
2.5
18
–
–
0.30
–
Beech (leaf l.)
d
(n ¼ 25)
45.0
1.2
39
–
–
0.30
–
Oak (green l.)
d
(n ¼ 20)
46.3
2.6
18
–
–
0.43
–
Oak (leaf l.)
d
(n ¼ 20)
47.6
1.5
33
–
–
0.36
–
Chestnut
(green l.)
d
(n ¼ 13)
46.9
2.5
19
–
–
0.54
–
Chestnut (leaf
l.)
d (n ¼ 13)
47.2
1.2
41
–
–
0.49
–
Mixture of plant remains and plant roots collected from soil sample
b
Kuriyagawa
forest soil
37.9
0.84
59
233
24.6
0.22
0.31
Cyouyou forest soil
49.6
0.49
102 382
30.8
0.081
0.088
(continued)
98
S. Murayama and Y. Sugiura