Research Article

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

Figure 5

Ethanol yield and corresponding ethanol concentration in the fermentation of liquids from pretreated leaflets and rachis. (a) Ethanol yield in the fermentation of liquids from pretreated leaflets and rachis. (b) Ethanol concentration in the fermentation of liquids from pretreated leaflets and rachis. The fermentation was carried out at 32°C for 72 h with the yeast (S. cerevisiae) inoculation of 2 g/L.
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(b)