TY - JOUR
T1 - Persulfate based pretreatment to enhance the enzymatic digestibility of rice straw
AU - Ahmed, Muhammad Ajaz
AU - Seo, Yeong Hwan
AU - Terán-Hilares, Ruly
AU - Rehman, Muhammad Saif U.R.
AU - Han, Jong In
N1 - Publisher Copyright:
© 2016
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Oxidation induced by potassium persulfate was evaluated as an economic substitute for the Fenton-like reaction for the purpose of rice straw pretreatment in terms of temperature (80–140 °C), potassium persulfate concentration (5–100 mM) and process time (0.5–3 h), an optimal pretreatment condition was identified: 120 °C for 2 h with 75 mM potassium persulfate concentration and yielded 91% enzymatic digestibility using 25.2 FPU/g of biomass. Crystallinity index, SEM and SEM-EDS analyses revealed that biomass was indeed disrupted and components like silica were exposed. All this suggested that this persulfate-based pretreatment method, which is distinctively advantageous in terms of effectiveness and economics, can indeed be a competitive option.
AB - Oxidation induced by potassium persulfate was evaluated as an economic substitute for the Fenton-like reaction for the purpose of rice straw pretreatment in terms of temperature (80–140 °C), potassium persulfate concentration (5–100 mM) and process time (0.5–3 h), an optimal pretreatment condition was identified: 120 °C for 2 h with 75 mM potassium persulfate concentration and yielded 91% enzymatic digestibility using 25.2 FPU/g of biomass. Crystallinity index, SEM and SEM-EDS analyses revealed that biomass was indeed disrupted and components like silica were exposed. All this suggested that this persulfate-based pretreatment method, which is distinctively advantageous in terms of effectiveness and economics, can indeed be a competitive option.
KW - Enzymatic hydrolysis
KW - Oxidative pretreatment
KW - Rice straw
KW - Structural features
UR - http://www.scopus.com/inward/record.url?scp=84992702582&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2016.09.122
DO - 10.1016/j.biortech.2016.09.122
M3 - Article
C2 - 27745966
AN - SCOPUS:84992702582
SN - 0960-8524
VL - 222
SP - 523
EP - 526
JO - Bioresource Technology
JF - Bioresource Technology
ER -