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. 2009 Jul 27;14(8):2747–2757. doi: 10.3390/molecules14082747

Figure 5.

Figure 5

Lignin conversion (a), yield of p-hydroxybenzaldehyde (b), vanillaldehyde (c) and syringaldehyde (d) with reaction time (the reaction conditions were as follows: NaOH (2 mol/L), 120 °C, 5 bar partial pressure of oxygen in 20 bar total pressure, CL0=60.00 kg/m3, Ccatalyst=3 g/L and the lignin conversion=(C0-Ct)/C0, where C0 is the initial concentration of lignin, and Ct is the concentration of lignin at any reaction time).