title: Pilot scale study on steam explosion and mass balance for higher sugar recovery from rice straw.
abstract: Pretreatment of rice straw on pilot scale steam explosion has been attempted to achieve maximum sugar recovery. Three different reaction media viz. water, sulfuric acid and phosphoric acid (0.5%, w/w) were explored for pretreatment by varying operating temperature (160, 180 and 200°C) and reaction time (5 and 10min). Using water and 0.5% SA showed almost similar sugar recovery (∼87%) at 200 and 180°C respectively. However, detailed studies showed that the former caused higher production of oligomeric sugars (13.56g/L) than the later (3.34g/L). Monomeric sugar, followed the reverse trend (7.83 and 11.62g/L respectively). Higher oligomers have a pronounced effect in reducing enzymatic sugar yield as observed in case of water. Mass balance studies for water and SA assisted SE gave total saccharification yield as 81.8% and 77.1% respectively. However, techno-economical viability will have a trade-off between these advantages and disadvantages offered by the pretreatment medium.
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Sandeep
authors.initials: S
authors.lastname: Sharma
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Ravindra
authors.initials: R
authors.lastname: Kumar
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Ruchi
authors.initials: R
authors.lastname: Gaur
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Ruchi
authors.initials: R
authors.lastname: Agrawal
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Ravi P
authors.initials: RP
authors.lastname: Gupta
authors.affiliation: DBT-IOC Centre for Advanced Bioenergy Research, Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India. Electronic address: tulidk@indianoil.in.
authors.forename: Deepak K
authors.initials: DK
authors.lastname: Tuli
authors.affiliation: Indian Oil Corporation Ltd., Research and Development Centre, Sector-13, Faridabad 121007, India.
authors.forename: Biswapriya
authors.initials: B
authors.lastname: Das
mesh_terms: D001709:Biotechnology / Q000379:methods*; D002241:Carbohydrates / Q000302:isolation & purification*; D002480:Cellulase / Q000378:metabolism; D006868:Hydrolysis; D012275:Oryza / Q000737:chemistry*; D010756:Phosphoric Acids / Q000494:pharmacology; D010865:Pilot Projects; D013227:Steam; D013464:Sulfuric Acids / Q000494:pharmacology; D013696:Temperature; D014866:Waste Products
chemical_list: D002241:Carbohydrates; D010756:Phosphoric Acids; D013227:Steam; D013464:Sulfuric Acids; D014866:Waste Products; C030242:phosphoric acid; D002480:Cellulase; C033158:sulfuric acid
keywords: Biomass; Enzymatic hydrolysis; Mass balance; Rice straw; Steam explosion