Biochemical Conversion of Lignocellulosic Biomass from Date Palm of Phoenix dactylifera L. into Ethanol Production

Cellulosic fibers from date palm are among the most promising lignocellulose feedstock for biorefinery purposes. The world production is between 1.9 and 2.4 million t/year. Initially, a pretreatment with dilute-sulphuric acid of these was performed using response surface methodology, temperature process time as factors. aim to produce bioethanol young old palm, Phoenix dactylifera L. Optimal thermochemical conditions both palms were 220 °C in hydrothermal (without acid); pretreated presented maximum content holocelluloses 45.18% 61.97%. Subsequently, during enzymatic hydrolysis yield total reducing sugars (TRS) reached, 46.32 g/100 g dry 48.54 fibers. After saccharification, hydrolysates fermented by Pachysolen tannophilus (ATCC 32691) ethanol, reaching yields (YE/TRS) 37.94 ethanol/100 TRS 35.84 Globally, considering full process, fermentation hydrolysates, (YE) 10.64 10.88 reached.