Page 30 - Lignocellulosic Biomass to Liquid Biofuels
P. 30

100 600          40 100  100 200  50 185        xylopyranose.

                  DP
                                                                       Xylp,
                                                                       acid;
                  Linkage  β-(1-6)  α-(1-3)  β-(1-3)  β-(1-4)  α-(1-3)  β-(1-2)  α-(1-2)  α-(1-2)  α-(1-6)  α-(1-2)  α-(1-2)  α-(1-3)  α-(1-2)  α-(1-3)  α-(1-2)  α-(1-3)  glucuronic Me-α-D-GlcpA,









                  chains                        4-O-Me-α-D-GlcpA  4-O-Me-α-D-  GlcpAβ-L-Araf  α-L-ArafFeruloy  4-O-Me-α-D-  Acetyl  mannopyranose;

                  Side  β-D-Galp  α-L-Araf  β-L-Arap  β-D-Xylp  β-D-Galp  α-L-Araf  α-L-Fucp  Acetyl  β-D-Galp  Acetyl  40 70  Acetyl  α-L-Araf  GlcpA
                                                                       Manp,
               [17].

               plants  Backbone  β-D-Galp  β-D-Glcp  β-D-Xylp  β-D-Manp  β-D-Glcp  β-D-Manp  β-D-Glcp  β-D-Xylp  β-D-Xylp  β-D-Xylp  β-D-Xylp  glucopyranose;  Glcp,

               lignocellulose  (%)                                     galactopyranose;




               several  Percentage  biomass  dry  35 a  1 3;  2 25  10 25  2 5  15 30  5 10  0.15 30  15 30  β-D-Xylp  Galp,


               for                                                     polymerization;
               hemicellulose  origin  grasses  and   cereals,  softwoods  cereals  of




               of  Biological  Softwoods  Hardwoods,  Softwoods  Softwoods  hardwoods  Hardwoods  Grasses,  and  Cereals  and  Grasses  Algae  degree  DP,
               characteristics                                         arabinopyranose;





               Chemical  type                        Glucuronoxylan  Glucuronoarabinoxylans  Arap,


               1.2  Polysaccharide  Arabinogalactan  Xyloglucan  Galactoglucomannan  Glucomannan  Glucuroxylan  Arabinoxylans  Homoxylans  Arabinofuranose;
               Table                                 Arabino           Araf,  a Larchwood.
   25   26   27   28   29   30   31   32   33   34   35