Table 2 FTIR analysis and its observations.
From: Influence of alkali treatment in enhancing crystallinity and breaking force of pineapple leaf fiber
Performed specimens | 1st Peak in cm− 1 (O-H Stretching) | 2nd Peak in cm− 1 (C-O Stretching) | 3rd Peak in cm− 1 (Lignin/Impurities) | Observations |
|---|---|---|---|---|
S10-UNT (Untreated-Baseline) | 3332.62 | 1026.24 | 772.91 | Hemicellulose and lignin present, lower crystallinity |
S6-9 N-30 M (NaOH Treated-Low CI) | 3334.05 | 1025.31 | 772.91 | Better crystallinity, maximum cellulose exposure |
S4-3 N-60 M (NaOH Treated-High CI) | 3334.05 | 1106.6 | 985.38 | Better crystallinity, maximum cellulose exposure |
