Xylose Release from Sunflower Stalk by Coupling Autohydrolysis and Enzymatic Post-Hydrolysis

In this study, to obtain xylose-based fermentation media from autohydrolysis liquors of sunflower stalk by using commercial xylanase formulation was aimed. Xylose is generally produced xylan diluted acid hydrolysis that causes the formation some unwanted compounds during process. As an alternative dilute method, enzymatic can provide more specific under moderate conditions and does not cause undesirable compounds. production carried out with Trichoderma longibrachiatum on solubilized form stalk, which hydrothermally pretreated for 1 h at 160 °C. The effects substrate concentration enzyme activity were investigated xylose. To a high xylose yield selectivity, optimization study conducted response surface methodology. optimum found as 60 mg ds/mL CAL 234 U/mL, respectively. Under condition, selectivity be 69.5% 8.2 g/g, This showed could produce without requiring neutralization process corrosive chemical reagent apart water.