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13C CP/MAS spectra of microcrystalline cellulose (MCC) and cellulose from cotton swaps after various treatments used to isolate cellulose from whole biomass samples. The ± value represents thee standard deviation of typical variation associated with the measurement. Un = untreated, Hemi = hemicellulose removal by acid hydrolysis, H = holocellulose pulped, HH = holocellulose pulped and hemicellulose removal by acid hydrolysis.
