Figure 3From: Cellulose crystallinity index: measurement techniques and their impact on interpreting cellulase performanceSolid state 13C NMR spectrum of Avicel PH-101. (a) Whole spectrum showing the assignment of peaks to the carbons in a glucopyranose repeat unit and (b) sub-spectrum showing peaks assigned to the C4 in cellulose. The CI is calculated by x/(x+y).Back to article page