Results 61 to 70 of about 103,350 (330)

Enhancement of the Efficiency of Bioethanol Production by Saccharomyces cerevisiae via Gradually Batch-Wise and Fed-Batch Increasing the Glucose Concentration

Fermentation, 2018
High initial glucose concentrations may inhibit glucose utilization and decrease ethanol fermentation efficiency. To minimize substrate inhibition, the effects of feeding yeast with different glucose concentrations on the ethanol production by batch and ...
Yi-Huang Chang, Ku-Shang Chang, Chien-Yu Chen, Chuan-Liang Hsu, Tsan-Chang Chang, Hung-Der Jang   +5 more
doaj   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Production of 1,3-Propanediol by Clostridium Butyricum Growing on Biodiesel Derived Glycerol

Chemical Engineering Transactions, 2016
The continuous demand for alternative biofuels resulted in a significant rise of biodiesel production in last decade. As a consequence, high quantities of raw glycerol have been accumulated.
F. Martins, V. Saab, C. Ribeiro, M.A. Coelho, T. Ferreira   +4 more
doaj   +1 more source

Techno-economic analysis of Cellulase Production by Trichoderma reesei in Submerged Fermentation Processes using a Process Simulator

South African Journal of Chemical Engineering, 2022
Enzymes are valuable in many biofuels production processes, and their wide application has generated significant market demand in recent years. To develop lignocellulosic fuels in a biorefinery, high cost and low catalytic efficiency of cellulase are a ...
Abiola Ezekiel Taiwo, Andykan Tom-James, Olayomi Abiodun Falowo, Anthony Okoji, Oladayo Adeyi, Abayomi O. Olalere, Andrew Eloka-Eboka   +6 more
doaj   +1 more source

Implementation of Sliding Mode Controller with Boundary Layer for Saccharomyces cerevisiae Fed-batch Cultivation [PDF]

, 2005
An implementation of sliding mode control for yeast fed-batch cultivation is presented in this paper. Developed controller has been implemented on two real fed-batch cultivations of Saccharomyces cerevisiae.
Bernd Hitzmann, Christine Klockow, Dirk Huell, Iasen Hristozov, Stoyan Tzonkov, Tania Pencheva   +5 more
core  

Organic Electrochemical Transistor Channel Materials: Copolymerization Versus Physical Mixing of Glycolated and Alkoxylated Polymers

Advanced Functional Materials, EarlyView.
This work discusses the use of blended channel materials in OECTs. It explores how mixing glycolated and alkoxylated polymers in various ratios offers a simpler and more efficient route to tuning OECT properties. The performance of the polymer blends is compared to the corresponding copolymers, demonstrating similar OECT characteristics, swelling ...
Lize Bynens, Kaishuai Zhang, Priscila Cavassin, Arwin Goossens, Jochen Vanderspikken, Tania C. H. Castillo, Demetra Tsokkou, Adam Marks, Arianna Magni, Karrie Weaver, Laurence Lutsen, Sahika Inal, Koen Vandewal, Natalie Banerji, Wouter Maes   +14 more
wiley   +1 more source

Kinetic study of batch and fed-batch enzymatic saccharification of pretreated substrate and subsequent fermentation to ethanol

Biotechnology for Biofuels, 2012
Background Enzymatic hydrolysis, the rate limiting step in the process development for biofuel, is always hampered by its low sugar concentration. High solid enzymatic saccharification could solve this problem but has several other drawbacks such as low ...
Gupta Rishi, Kumar Sanjay, Gomes James, Kuhad Ramesh   +3 more
doaj   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Insight into evolutionary optimization approach of batch and fed-batch fermenters for lactic acid production

Digital Chemical Engineering, 2023
Differential evolution (DE) algorithm and genetic algorithm (GA) are used in this study to estimate a set of kinetic parameters for Arabic date juice-based lactic acid production via batch and fed-batch mode of fermentation.
Ashish M. Gujarathi, Swaprabha P. Patel, Badria Al Siyabi   +2 more
doaj   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source