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Fig. 6 | Biotechnology for Biofuels

Fig. 6

From: Performance of three delignifying pretreatments on hardwoods: hydrolysis yields, comprehensive mass balances, and lignin properties

Fig. 6

Quantified lignin properties for pretreatment-solubilized lignins and reference “native” cellulolytic lignin (CEL lignin), including a SEC-estimated weight and number average molar masses, b β-O-4 content determined by 13C NMR, and c HSQC NMR-determined relative abundances of interunit linkages within the lignins. “Pre-Extr.” refers to the alkaline pre-extraction step or the first stage of the Cu-AHP process, while “Cu-AHP” refers to the second step or the alkaline oxidative Cu-AHP stage

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