Hydrothermal Pretreatment of Date Palm (Phoenix dactylifera L.) Leaflets and Rachis to Enhance Enzymatic Digestibility and Bioethanol Potential

Figure 4

Glucose and xylose conversion and theoretical ethanol yield of untreated and treated date palm leaflets and rachis based on enzymatic hydrolysis. (a) Glucose and xylose conversion of untreated and pretreated leaflets and rachis by enzymatic hydrolysis. (b) Bioethanol potential derived from glucose and xylose of untreated and treated date palm leaflets and rachis based on glucose and xylose yield in enzymatic hydrolysis. Enzymatic hydrolysis was conducted at 50°C for 72 h with Cellic CTec2 (15 FPU/g DM) and Cellic HTec2 (1/9 weight of Cellic CTec2).

(a)

(b)