Journal of Chemical Engineering & Process Technology
Open Access

Helena Pereira

Publications

• Research Article
  Biorefinery of Energy Crop Cardoon(Cynara cardunculus l.)-Hydrolytic Xylose Production as Entry Point to Complex Fractionation Scheme
  Author(s): Anatoly A. Shatalov and Helena PereiraAnatoly A. Shatalov and Helena Pereira
  
  Response surface methodology (RSM) was employed for statistical modeling and optimization of low temperature dilute sulfuric acid hydrolysis of hemicellulose fraction of energy agro-crop cardoon (Cynara cardunculus L.), as an entry point to complex biorefinery scheme. The 23 central composite rotatable design (CCRD) was used to assess the effect of the principal independent process variables (reaction time, temperature and acid concentration) on efficiency and selectivity of heteroxylan conversion to xylose. The second-order polynomial model was fitted to experimental data to find optimal reaction conditions of xylan-to-xylose hydrolysis by multiple regression analysis. The effect of acid concentration (linear and quadratic) was found as a more significant (p=0.001-0.007) for monomeric xylose recovery in solution. The maximal xylose yield of ca. 86% (18.08 g /100 g biomass) was achiev.. View More»
  DOI: 10.4172/2157-7048.1000118

  Abstract PDF

Relevant Topics