Blar i NTNU Open på forfatter "Birgen, Cansu"
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Butanol production from lignocellulosic biomass: revisiting fermentation performance indicators with exploratory data analysis
Birgen, Cansu; Dürre, Peter; Preisig, Heinz A.; Wentzel, Alexander (Journal article; Peer reviewed, 2019)After just more than 100 years of history of industrial acetone–butanol–ethanol (ABE) fermentation, patented by Weizmann in the UK in 1915, butanol is again today considered a promising biofuel alternative based on several ... -
Butanol production from lignocellulosic sugars by Clostridium beijerinckii in microbioreactors
Birgen, Cansu; Degnes, Kristin Fløgstad; Markussen, Sidsel; Wentzel, Alexander; Sletta, Håvard (Peer reviewed; Journal article, 2021)Butanol (n-butanol) has been gaining attention as a renewable energy carrier and an alternative biofuel with superior properties to the most widely used ethanol. We performed 48 anaerobic fermentations simultaneously with ... -
The Effect of Feeding Strategy on Butanol Production by Clostridium beijerinckii NCIMB 8052 Using Glucose and Xylose
Birgen, Cansu; Markussen, Sidsel; Wentzel, Alexander; Preisig, Heinz A. (Peer reviewed; Journal article, 2018)We performed fed-batch fermentations of glucose and xylose mixtures producing butanol. Our aim was to develop a feeding strategy for coping with carbon catabolite repression (CCR) and sequential utilization problems as ... -
Efficacy of a novel sequential enzymatic hydrolysis of lignocellulosic biomass and inhibition characteristics of monosugars
Baksi, Sibashish; Ball, Akash K.; Sarkar, Ujjaini; Banerjee, Debopam; Wentzel, Alexander; Preisig, Heinz A.; Kuniyal, Jagdish Chandra; Birgen, Cansu; Saha, Sudeshna; Wittgens, Bernd; Markussen, Sidsel (Peer reviewed; Journal article, 2019)Efficient production of sugar monomers from lignocellulose is often hampered by serious bottle-necks in biomass hydrolysis. The present study reveals that ultra-sonication assisted pretreatment following autoclaving, termed ... -
Experimental and Modeling Studies of Fermentative Butanol Production from Lignocellulosic Sugars
Birgen, Cansu (Doctoral theses at NTNU;2019:378, Doctoral thesis, 2019)The primary focus of the work performed and summarized in this thesis was to understand and improve anaerobic fermentation of lignocellulosic sugars for butanol production by Clostridia. Experimental studies form the basis ... -
Kinetic Study of Butanol Production from Mixtures of Glucose and Xylose and Investigation of Different Pre-growth Strategies
Birgen, Cansu; Berglihn, Olaf Trygve; Preisig, Heinz A.; Wentzel, Alexander (Journal article; Peer reviewed, 2019)This study proposes a dynamic model that describes key characteristics of fermentative butanol production from glucose and xylose mixtures. The model has 12 parameters and incorporates noncompetitive inhibitory interaction ... -
Modeling the Growth of Clostridium beijerinckii NCIMB 8052 on Lignocellulosic Sugars
Birgen, Cansu; Markussen, Sidsel; Wentzel, Alexander; Preisig, Heinz A.; Wittgens, Bernd (Peer reviewed; Journal article, 2018)To our knowledge, this is the first growth model of Clostridium beijerinckii NCIMB 8052 on glucose and xylose as representative lignocellulosic sugars, which considers the synergistic effects of sugars on the growth rate. ... -
Response Surface Methodology for Understanding Glucose and Xylose Utilization by Clostridium beijerinckii NCIMB 8052
Birgen, Cansu; Markussen, Sidsel; Wentzel, Alexander; Preisig, Heinz A. (Peer reviewed; Journal article, 2018)We applied response surface methodology to understand the effect and extend of carbon catabolite repression (CCR) on growth of Clostridium beijerinckii NCIMB 8052 using xylose and glucose as representative lignocellulosic ... -
Studies on delignification and inhibitory enzyme kinetics of alkaline peroxide pre-treated pine and deodar saw dust
Baksi, Sibashish; Sarkar, Ujjaini; Saha, Sudeshna; Ball, Akash K.; Kuniyal, Jagdish Chandra; Wentzel, Alexander; Birgen, Cansu; Preisig, Heinz A.; Wittgens, Bernd; Markussen, Sidsel (Peer reviewed; Journal article, 2019)Delignification of lignocellulosic biomass by alkaline peroxide pre-treatment is a preliminary important step for an overall biomass fractionation process. In the present work, saw dusts are pre-treated by aqueous alkaline ... -
Studies on delignification and inhibitory enzyme kinetics of alkaline peroxide pre-treated pine and deodar saw dust
Baksi, Sibashish; Sarkar, Ujjaini; Saha, Sudeshna; Ball, Akash K.; Kuniyal, Jagdish Chandra; Wentzel, Alexander; Birgen, Cansu; Preisig, Heinz A.; Wittgens, Bernd; Markussen, Sidsel (Journal article; Peer reviewed, 2019)Delignification of lignocellulosic biomass by alkaline peroxide pre-treatment is a preliminary important step for an overall biomass fractionation process. In the present work, saw dusts are pre-treated by aqueous alkaline ... -
Valorization of lignocellulosic waste (Crotalaria juncea ) using alkaline peroxide pretreatment under different process conditions: An optimization study on separation of lignin, cellulose, and hemicellulose
Baksi, Sibashish; Saha, Sudeshna; Birgen, Cansu; Sarkar, Ujjaini; Preisig, Heinz A.; Markussen, Sidsel; Wittgens, Bernd; Wentzel, Alexander (Peer reviewed; Journal article, 2018)Lignocellulose materials, essentially consisting of lignin, cellulose and hemicelluloses, are abundant sources of fermentable sugars. The bast fiber of Crotalaria juncea (Sunn hemp), a native cover crop of India, was used ...