Fermentation Processes By Meyerozyma Guilliermondii And Saccharomyces Cerevisiae For Co-production Of Xylitol And Bioethanol Co-Production

Recent years have seen an increase in the use of lignocellulosic materials development bioproduct, biorefinery technologies focused on process integration for production different valuable coproducts order to reduce overall processing cost. In this study, agricultural wastes from rice straw were used co-production bioethanol and xylitol. Where is produced cellulosic fraction xylitol hemicellulose after elimination lignin using chemical pretreatments. The treatment was carried out with diluted acid 2.5% at a 100 °C 30 minutes , then exposed solid phase resulting enzymatic action fungus Trichoderma harzianum releas sugars fermented later stage using  Saccharomyces cerecvisae simultaneous saccharification fermentation process, liquid fraction  Meyerozyma guilliermondii strain F22 (Pichia guilliermondii) production. Resulting accomplished yielding maximum concentrations product yield 32.6 g/L 0.39g/g 20.1 g/L, 0.44g/g respectively total glucose xylose available straw, ethanol integrated would create economic benefits making lignocellulose-based more cost effective