Fig. 2

Examples of NMR spectra acquired. MultiCP spectra with or without dipolar filter obtained in sugarcane bagasse before and after pretreatments: (a) spectrum of hydrated untreated bagasse acquired with Multi-CP; (b) spectrum of hydrated bagasse after H₂SO₄ pretreatment acquired with Multi-CP; (c) spectrum of lyophilized supernatant from the pretreatment with 1% H₂SO₄ + 0.25% NaOH acquired with Multi-CP; (d) spectrum of hydrated untreated bagasse acquired with dipolar filtered Multi-CP; (e) spectrum of hydrated bagasse after H₂SO₄ pretreatment acquired with dipolar filtered Multi-CP.