Efeito do teor de umidade sobre o pré-tratamento a vapor e a hidrólise enzimática do bagaço de cana-de-açúcar

• Main Authors: Ana Paula Pitarelo, Thiago Alessandre da Silva, Patricio Guillermo Peralta-Zamora, Luiz Pereira Ramos
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2012-01-01
• Series: Química Nova
• Subjects: sugarcane bagasse; steam explosion; moisture content
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000800003&lng=en&tlng=en

The effect of moisture content in the steam treatment and enzymatic hydrolysis of sugarcane bagasse was evaluated. Steam treatment was perfomed at 195-210 ºC for 4-8 min using cane bagasse with moisture contents in the range 16-100 wt% (dry basis). Increased moisture contents not only had a positive influence in recovery of main cane biomass components but also resulted in better substrates for enzymatic hydrolysis. As a result, drying is not required for optimal pretreatment and enzymatic hydrolysis of sugarcane bagasse, which can be processed into second generation ethanol immediately after crushing and hot water washing.