The efficient separation of bleached carrot residue into nanosized
fibers can be attributed to the more accessible fiber in the
inherently thin carrot cell wall. This shows that the structural differences
of the cells, and hence the choice of raw material, has an
important role for the efficient production of cellulose nanofibers.
The remaining hemicellulose may have acted to facilitate the fibrillation.
However, a higher amount of hemicellulose alone did
not improve the process efficiency, as shown in the bleached BSG,
where the disintegration is a more gradual process, at more than
double the hemicellulose content compared to the bleached carrot
residue. The presence of the remaining lignin could also have
been a contributing factor to reduce the process efficiency for the
separation of BSG.