Fig. 2From: Synergetic effect of dilute acid and alkali treatments on fractional application of rice strawThe yield of xylooligosaccharides in the liquor phase obtained during the various dilute acid pretreatments. The liquid number (1, 4, 10, 14, 6, 7, etc.) on the y axis correspond to the liquids obtained during the dilute acid pretreatment of rice straw under various conditions, and pretreatment conditions are given in detail in Table 1 Back to article page