نتایج جستجو برای: enzymatic saccharification

تعداد نتایج: 56015  

2015
Bruce A Diner Jelena Lasio Carl E Camp H David Rosenfeld Janine Fan Bradley C Fox

BACKGROUND Fine milling of dry lignocellulosic biomass, without prior chemical pretreatment, can produce a high percent theoretical yield of sugars during subsequent enzymatic saccharification. However, the high sugar yields, necessary for a commercial biofuels process, are costly, with the milling energy input, necessary to achieve such yields even exceeding the energy content of the biomass. ...

Journal: :Bioresource technology 2016
Michele Michelin José António Teixeira

Agricultural feedstocks (brewers' spent grain - BSG, corncob - CC, corn husk - CH, wheat straw - WS and Luffa sponge - LS) were pretreated by liquid hot water (LHW) in order to increase cellulose recovery and enzymatic saccharification. LHW-pretreatment resulted in hemicellulose solubilization, and solids enriched in cellulose. Chemical analysis showed different susceptibilities of the feedstoc...

2014
Xin Meng Wenhui Geng Hao Ren Yongcan Jin Hasan Jameel

Green liquor (Na2S + Na2CO3, GL) pretreatment is an effective pathway for improving the enzymatic digestibility of lignocellulosic biomass for the production of bioethanol. In this work, GL was employed as a pretreatment to enhance the enzymatic saccharification of poplar. During pretreatment, the increase of H-factor and TTA charge resulted in enhanced delignification and increased degradation...

2011
Arindam Kuila Mainak Mukhopadhyay D. K. Tuli Rintu Banerjee

In the present investigation, Bambusa bambos was used for optimization of enzymatic pretreatment and saccharification. Maximum enzymatic delignification achieved was 84%, after 8 h of incubation time. Highest reducing sugar yield from enzyme-pretreated Bambusa bambos was 818.01 mg/g dry substrate after 8 h of incubation time at a low cellulase loading (endoglucanase, β-glucosidase, exoglucanase...

2014
Tianxiang Zheng Lidan Yu Yuling Zhu Bin Zhao

In order to evaluate the effects of different pretreatments on microbial transformation of saponins in Dioscorea zingiberensis (DZW), various methods have been systematically studied on a large scale. Five pretreatments, including physical separation, catalytic solvent extraction, ultrasonic fermentation, complex enzymatic hydrolyzation and enzymatic saccharification, were performed on DZW. Com...

Journal: :The Biochemical journal 2012
Douglas B Jordan Michael J Bowman Jay D Braker Bruce S Dien Ronald E Hector Charles C Lee Jeffrey A Mertens Kurt Wagschal

Conversion of plant cell walls to ethanol constitutes second generation bioethanol production. The process consists of several steps: biomass selection/genetic modification, physiochemical pretreatment, enzymatic saccharification, fermentation and separation. Ultimately, it is desirable to combine as many of the biochemical steps as possible in a single organism to achieve CBP (consolidated bio...

Journal: :Bioresource technology 2011
Youngmi Kim Nathan S Mosier Michael R Ladisch V Ramesh Pallapolu Y Y Lee Rebecca Garlock Venkatesh Balan Bruce E Dale Bryon S Donohoe Todd B Vinzant Richard T Elander Matthew Falls Rocio Sierra Mark T Holtzapple Jian Shi Mirvat A Ebrik Tim Redmond Bin Yang Charles E Wyman Ryan E Warner

Feedstock quality of switchgrass for biofuel production depends on many factors such as morphological types, geographic origins, maturity, environmental and cultivation parameters, and storage. We report variability in compositions and enzymatic digestion efficiencies for three cultivars of switchgrass (Alamo, Dacotah and Shawnee), grown and harvested at different locations and seasons. Sacchar...

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