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Table 1 Pretreatment liquids and contents of BQ and DMBQ

From: Identification of benzoquinones in pretreated lignocellulosic feedstocks and inhibitory effects on yeast

Pretreatment liquid Feedstock Pretreatment catalyst and conditions [BQ] (mg/l) [DMBQ] (mg/l)
PL1 Corn cobs H2SO4, 186 °C, 6.4 min 2.006 ± 0.231 0.230 ± 0.028
PL2 Sugarcane bagasse SO2, 188 °C, 10 min 6.138 ± 0.838 <LOD
PL3 Cassava stems H2SO4, 170 °C, 20 min 5.167 ± 1.454 0.200 ± 0.049
PL4 Norway spruce SO2, 204 °C, 7-8 min 4.156 ± 0.381 <LOD
PL5 Birch SO2, 190 °C, 7 min <LOQ 0.387 ± 0.065
PL6 Aspen H2SO4, 165 °C, 10 min 0.638 ± 0.307 0.511 ± 0.101