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|Title:||Studies on physicochemical changes during alkali pretreatment and optimization of hydrolysis conditions to improve sugar yield from bagasse|
|Authors:||Janu, K U|
Rajeev K Sukumaran
|Citation:||Journal of Scientific & Industrial Research 70(11):952-958;Nov 2011|
|Abstract:||This study presents alkali pretreatment of sugarcane bagasse (SCB) and conditions were optimized to improve susceptibility to enzymatic saccharification. Maximal recovery of sugars was obtained with following pretreatment conditions: biomass loading, 5%; NaOH conc., 3%; and residence time at 121 degrees C, 60 min. Physicochemical changes in feedstock after alkali pretreatment, analyzed using SEM, FTIR and XRD, confirmed decrease in lignin content and effective de-polymerization after pretreatment. Optimization of biomass and enzyme loading, surfactant concentration and incubation time for enzymatic hydrolysis was done using a response surface Box Behnken design, which resulted in 94% saccharification efficiency. Surfactant concentration had a major role in hydrolysis and increase in biomass loading improved sugar yield.|
|Appears in Collections:||2011|
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