Fig 6. Time course of phenolic content of P. balsamifera prehydrolysate during pretreatment with YlLac at different pHs, (a) 3, (b) 4, (c) 5.
Untreated control (without laccase) is also shown, (d) Reducing sugar production from acid-pretreated P. balsamifera by Celluclast 1.5L: without laccase pretreatment (black bar), and with YlLac pretreatment (gray bar). Error bars indicate standard deviations from mean values.