Stability problems in the hydrogen production by dark fermentation: possible causes and solutions

E Castelló, ADN Ferraz-Junior, C Andreani… - … and Sustainable Energy …, 2020 - Elsevier
H 2 production by dark fermentation using mixed cultures has been studied intensively
during the last two decades, and its feasibility has been demonstrated. Different substrates …

Lignocellulosic ethanol production: Evaluation of new approaches, cell immobilization and reactor configurations

P Karagoz, RM Bill, M Ozkan - Renewable energy, 2019 - Elsevier
The environmentally-friendly, economically-viable production of ethanol from cellulosic
biomass remains a major contemporary challenge. Much work has been done on the …

Robust nonlinear model predictive control of cascade of fermenters with recycle for efficient bioethanol production

P Skupin, P Łaszczyk, EC Goud, R Vooradi… - Computers & Chemical …, 2022 - Elsevier
In this paper, dynamical behavior and control of the continuous ethanol fermentation
process are studied. The process productivity is improved by using two fermenters …

[HTML][HTML] Mini-Review on the Design Principles of Biochemical Oscillators for the Continuous Ethanol Fermentation Processes

C Zhai, C Ji, W Sun - Processes, 2024 - mdpi.com
Computational modeling and the theory of nonlinear dynamical systems allow us not only to
simply describe the events of biochemical oscillators in the ethanol fermentation process but …

Batch and continuous cultivation processes of Candida tropicalis TISTR 5306 for ethanol and pyruvate decarboxylase production in fresh longan juice with optimal …

R Nunta, C Techapun… - Journal of Food …, 2019 - Wiley Online Library
The carbon to nitrogen (C/N) molar ratio of 21.88±0.20 in fresh juice from C‐grade longan
(FLJ‐C) supplemented with ammonium sulfate (AMS) was optimal for cultivation of Candida …

Metabolic engineering of yeast, Zymomonas mobilis, and Clostridium thermocellum to increase yield of bioethanol

S Sánchez-Muñoz, MJ Castro-Alonso… - …, 2022 - api.taylorfrancis.com
The price fluctuation of petroleum-based fuels makes biofuels one of the most promising
alternative energies for global economies. Since the biological production of fuels, from …

Periodic on-off operations of the self-cycling ethanol fermentation process: Stability analysis and optimal operation strategies

C Zhai, S Wu, S Chen, Y Chunxi - Chemical Engineering and Processing …, 2024 - Elsevier
Fuel ethanol is highlighted for being renewable and carbon neutral, but a multi-scale
challenge exists that hampers its role as a future energy substitute, and with the …

Time-delay mathematical model of lagged lactic acid production using agro-industrial wastes as substrate

G Rosero-Chasoy, E Durán-Páramo… - Applied Mathematical …, 2020 - Elsevier
The aim of this study was to obtain a feasible mathematical model that may describe the
lactic acid production by Lactobacillus casei using residual agro-industrial wastes. The …

A study of periodic operation in bioprocess systems: Internal and external oscillations

C Zhai, A Palazoglu, W Sun - Computers & Chemical Engineering, 2020 - Elsevier
For many dynamic processes, improved time-average performance could be achieved by
periodic operations, which introduce periodic variations to the state-variables deliberately. In …

PI control for a continuous fermentation process with a delayed product inhibition

P Skupin, M Metzger - Journal of Process Control, 2018 - Elsevier
The paper addresses the problem of stabilization of ethanol concentration in continuous
fermentation processes. The stability analysis is performed for a class of continuous …