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Ultrasound assisted ammonia pretreatment of sugarcane bagasse for fermentable sugar production
- Ramadoss, Govindarajan, Muthukumar, Karuppan
- Biochemical engineering journal 2014 v.83 pp. 33-41
- acetic acid, acid hydrolysis, ammonia, arabinose, cellulose, delignification, furfural, glucose, hydrolysates, particle size, sugarcane bagasse, temperature, xylose
- This study presents the ultrasound assisted ammonia pretreatment (UAAP) of sugarcane bagasse (SCB) and the influence of SCB particle size, liquid ammonia concentration, sonication time, temperature and liquid to solid ratio (LSR) on cellulose recovery and delignification. The maximum cellulose recovery and delignification observed at the optimum conditions (particle size 0.274mm, sonication time 45min, ammonia concentration 10%, LSR 10mL/g and temperature 80°C) were 95.78 and 58.14%, respectively. The dilute acid hydrolysis of pretreated SCB produced 16.58g/L glucose, 8.21g/L xylose, 2.78g/L arabinose, 0.81g/L furfural and 1.79g/L acetic acid. The hydrolysate contained less inhibitors compared to the values reported in the literature during fermentable sugar production.