Molecular weights of some important molecules
C
H
O
MW
Cellulose
6
10
5
162
Glucose
6
12
6
180
HMF
6
6
3
126
Pentosan
5
8
4
132
Pentose
5
10
5
150
Furfural
5
4
2
96
Table 6.1 (book)
No. of carbon Category name Example
3
Triose
Glyceraldehyde, dihydroxyacetone
4
Tetrose
Erythrose, threose, erythrulose
5
Pentose
Ribose, ribulose, xylose, xylulose, arabinose
6
Hexose
Glucose, galactose, mannose, fructose
7
Heptose
Sedoheptulose
8
Octose
Octulose
9
Nonose
Neuraminic acid, also known as sialic acid (derivative)
Remember the same structural impirical formula for carbon
number 3 or more: $(CH_2O)_n$
QUESTION 7
Monomeric
sugars
HMF and
Furfural
HMF and furfural
Hexosans
Enzymatic
hydrolysis &
fermentation
Monomeric
sugars
Ethanol
ves
Pentosans
Hemicellulose
Lignin
Pretreatment
Biomass
Solids (Lignin, ash and
extractives)