| Título: | PROCESS OPTIMIZATION FOR SUGARS PRODUCTION FROM RICE STRAW VIA PRETREATMENT WITH SULFUR TRIOXIDE MICRO-THERMAL EXPLOSION |
| Autores: |
Li, Fenghe Yao, Risheng Wang, Huai Hu, Huajia Zhang, Ranran |
| Fecha: | 2012-05-02 |
| Publicador: | Bioresources |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| Tema: | Rice Straw, Sulfur Trioxide Micro-Thermal Explosion (STEX), Dilute Lye, Saccharification, Response Surface Methodology |
| Descripción: | The effects of sulfur trioxide micro-thermal explosion (STEX) and enzyme loading on reducing sugars conversion of STEX-treated rice straw and enzymatic hydrolysates were researched. Important process parameters in the pretreatment of biomass were identified by a Plackett-Burman design, and parameters with significant effects were optimized using a Box-Behnken design (BBD) and response surface methodology (RSM). The optimal conditions were a temperature of 80 °C and a treatment time of 30 min when only single factors were considered. Meanwhile, glucose and xylose were primary components in the enzymatic hydrolysates. Subsequently, STEX time, liquid-solid ratio, and soaking temperature were the main factors governing the enzymatic saccharification of rice straw. The optimum pretreatment conditions were STEX time 23.3 min, liquid-solid ratio 13.3 (V/m), and soaking temperature 62.2 °C. The chemical composition analysis of straw further demonstrated that STEX collaborative dilute lye pretreatment could remove lignin and hemicellulose. |
| Idioma: | Inglés |