Results 61 to 70 of about 8,773 (215)

Techno‐economic analysis for hydroxy acids production from waste cellulose via alkaline digestion

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND Alkaline digestion offers a promising route for converting low‐grade cellulosic wastes into valuable hydroxy carboxylic acids (HAs). However, the feasibility of producing HAs at process scale, particularly the influence of reactor design on product yields, energy demand, and production costs, remains less explored.
Farangis Fallahmehneh, Massimiliano Errico, Kristian Melin, Tuomo Sainio   +3 more
wiley   +1 more source

Carbon‐based materials from renewable sources: Challenges and perspectives with a focus on green coconut

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 3, Page 477-493, March 2026.
Abstract This article presents a comprehensive examination of agricultural production, biomass generation, and its transformation into biochar, with a particular emphasis on green coconut waste as a primary resource. It underscores the link between agriculture and substantial biomass output, shedding light on the ecological issues associated with solid
Yslaine Andrade de Almeida, Iara de Fatima Gimenez, Ledjane Silva Barreto, Isis Nayra Rolemberg Prudente, Hericles Campos dos Santos   +4 more
wiley   +1 more source

Improvement of organic acid production with sulfate addition during syngas fermentation using mixed cultures

Water Cycle, 2022
The aim of this study is to investigate the effect of sulfate on conversion of CO2 into organics using syngas fermentation with mixed culture. Fermentation tests were operated under H2 concentrations of 2.14 and 21.4 ​mmol/d, respectively, using ...
Yinbo Xiang, Haiping Luo, Guangli Liu, Renduo Zhang   +3 more
doaj   +1 more source

Enhancing CO-water mass transfer by functionalized MCM41 nanoparticles [PDF]

, 2008
Organic groups are grafted to ∼250-nm-diameter MCM41 nanoparticles with a spherical morphology to enhance the CO-water volumetric mass-transfer coefficient (kLa) for synthesis gas fermentation.
Heindel, Theodore, Heindel, Theodore, Shanks, Brent, Shanks, Brent, Zhu, Haiyang   +4 more
core   +5 more sources

Carboxydotrophic Acetogenesis in Alkaline Conditions Results in Transient Formate Production by the Halo‐Alkaliphilic Acetogen Haloacetibacter carboxydivorans Gen. Nov. sp. Nov

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This work presents the physiological exploration of the halo‐alkaliphilic, carboxydotrophic acetogen bacterium MD4. In contrast to well‐characterised neutrophilic and slightly acidophilic acetogenic carboxydotrophs, this work shows an important role for formate production, instead of ethanol, as a redox exhaust mechanism in alkaline conditions ...
Martijn Diender, Isabelle M. Keijsers, Anastasia Galani, Timo van Roosmalen, Alfons J. M. Stams, Diana Z. Sousa   +5 more
wiley   +1 more source

A Heterodimeric Reduced-Ferredoxin-Dependent Methylenetetrahydrofolate Reductase from Syngas-Fermenting Clostridium ljungdahlii

Microbiology Spectrum, 2021
The strict anaerobe Clostridium ljungdahlii can ferment CO or H2/CO2 via the Wood-Ljungdahl pathway to acetate, ethanol, and 2,3‐butanediol. This ability has attracted considerable interest, since it can be used for syngas fermentation to produce ...
Jihong Yi, Haiyan Huang, Jiyu Liang, Rufei Wang, Ziyong Liu, Fuli Li, Shuning Wang   +6 more
doaj   +1 more source

Biomethanation potential of biological and other wastes [PDF]

, 2013
Anaerobic technology has been traditionally applied for the treatment of carbon rich wastewater and organic residues. Anaerobic processes can be fully integrated in the biobased economy concept for resource recovery.
A Demirbas, AC Haandel Van, AC Haandel Van, AE Atabani, AJM Stams, AJM Stams, AM Henstra, B Rusten, B Schink, B Schink, B Sialve, BE Rittmann, C Eskicioglu, CM Plugge, CS Jones, D Phukingngam, DK Kundiyana, DP Chynoweth, DR Boone, EA Ehimen, F Cecchi, FE Mosey, G Luo, GP Silva, GY Jung, HHP Fang, HN Abubackar, HV Amorim, J Abrini, J Ma, J Mata-Alvarez, J Meredith, J Sipma, J-H Park, JA Siles, JA Siles, JB Holm-Nielsen, JB Lier Van, JB Lier Van, JC Costa, JH Mussgnug, JK Pittman, JL Cotter, JM Marchetti, JM O’Brien, JMM Adams, JS Huang, JWA Langeveld, K Sander, KB Cantrell, KT Bird, KV Rajeshwari, L Castrillón, L Daniels, L Masse, LT Angenent, M Agler, M Murto, M Pérez-García, M Ras, M Rother, MD Bredwell, ME Souza, MOS Dias, MS Fountoulakis, MSM Jetten, N Kolesárová, P Borjesson, P Jaruwat, P Kaparaju, P Morand, P Peu, P Weiland, P-H Lee, PS Nigam, R Seth, RL Kerby, SC Rabelo, SH Schaefer, SR Guiot, SR Harper, SS Yazdani, T Amon, T Kocsisová, TG Sokolova, TG Sokolova, TG Sokolova, V Blonskaja, V Svetlitchnyi, VA Vavilin, VN Gunaseelan, VN Gunaseelan, VN Nkemka, W Gujer, X Briand, Z Yang   +95 more
core   +3 more sources

An Efficient CO2‐Upcycling Platform Based on Engineered Halomonas TD with Enhanced Acetate‐Utilizing Capacity via Adaptive Laboratory Evolution

Advanced Science, Volume 13, Issue 3, 14 January 2026.
An electrochemical system is designed to convert CO2 into CO2‐derived electrolytes (CDE), mainly containing acetate and formate. The underlying mechanism of acetate metabolism in Halomonas TD80 is explored via ALE. Engineered TD80 produced high‐yield diversified products from CDE.
Chi Wang, Ting‐Ting Chen, Yu‐Jiao Yang, Yu‐Xi Li, Yi‐Xin Chang, Yan‐Chun Xiao, Wen‐Tai Guo, Ye Zheng, Rui‐Zhe Deng, Yu‐Xiang Tian, Wei Situ, Hong‐Wei Shen, Yu Chen, Ya‐Bin Wang, Jie Xing, Hui Wang, Lin Xia, Yi‐Na Lin, Jian‐Wen Ye   +18 more
wiley   +1 more source

Low fermentation pH is a trigger to alcohol production, but a killer to chain elongation

Frontiers in Microbiology, 2016
Gasification of organic wastes coupled to syngas fermentation allows the recovery of carbon in the form of commodity chemicals, such as carboxylates and biofuels.
Ramon eGanigué, Ramon eGanigué, Patricia eSanchez, Lluis eBañeras, Jesus eColprim   +4 more
doaj   +1 more source

Effect of pH and pressure on syngas fermentation by anaerobic mixed cultures [PDF]

, 2013
Syngas fermentation by mesophilic anaerobic mixed cultures was studied, regarding the effect of initial medium pH (5.8, 6.9 and 7.6) and total initial syngas pressure (1.0, 1.75 and 2.5 atm) in methane production and other alternative products (acids and
Alves, M. M., Pereira, Filipa Maria Rodrigues, Sousa, D. Z.   +2 more
core