Article
Energy & Fuels
Hamidreza Shafaei, Ahmad Taghizadeh-Alisaraei, Ahmad Abbaszadeh-Mayvan, Aliasghar Tatari
Summary: In this study, the use of giant reed as a substrate for bioethanol production was investigated. The effects of sodium hydroxide concentration, temperature, and pretreatment duration on bioethanol concentration and yield were studied and optimized using response surface methodology. The results showed significant effects of the variables on bioethanol production, and the optimal conditions for bioethanol production were determined. These findings highlight the potential of giant reed biomass as a suitable raw material for bioethanol production.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Environmental Sciences
Niyam Dave, Thivaharan Varadavenkatesan, Raja Selvaraj, Ramesh Vinayagam
Summary: The study investigated the predictive ability of an integrated artificial neural network with genetic algorithm for bioethanol production from marine macroalgae. The results showed that the developed model can effectively predict the effects of fermentative parameters on bioethanol production and achieve a maximum bioethanol yield close to the predicted value in experiments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Jyosthna K. Goli, Bee Hameeda
Summary: The study successfully utilized Typha latifolia as substrate for xylitol and bioethanol production through chemical pretreatment and enzymatic hydrolysis.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Environmental Sciences
Sathish Kumar Rajamanickam, Sureshkumar Kasinathan
Summary: This study successfully produced renewable biofuel from Manilkara zapota fruit and seed oil, with bioethanol and ethyl ester displaying potential as substitutes for fossil diesel and gasoline. Optimal production parameters were determined through experimentation, highlighting the promise of these biofuels as sustainable alternatives.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Iqra Shahid, Ghulam Hussain, Mehwish Anis, Muhammad Umar Farooq, Muhammad Usman, Yasser Fouad, Jaroslaw Krzywanski
Summary: This study evaluates the feasibility of bioethanol production from onion waste using Saccharomyces cerevisiae and Pichia pastoris, as well as their co-culture fermentation. Optimal process parameters were determined, and different analyses were conducted to measure the bioethanol concentration obtained at various conditions. The results showed that monoculture fermentation with Saccharomyces cerevisiae achieved the highest bioethanol concentration and productivity compared to Pichia pastoris and co-culture fermentation.
Article
Biotechnology & Applied Microbiology
Letitia Minnaar, Riaan den Haan
Summary: This study evaluates the potential of natural and industrial strains of Saccharomyces cerevisiae to secrete cellulases. The results show that natural isolates have better secretion capacities for cellulases under high temperature and acetic acid conditions, and exhibit tolerance to various fermentation-associated stresses. These isolates could serve as promising chassis organisms for consolidated bioprocessing bioethanol production.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Wenyan Cao, Weiquan Zhao, Bolun Yang, Xinning Wang, Yu Shen, Tiandi Wei, Wensheng Qin, Zailu Li, Xiaoming Bao
Summary: Vanillin is an important phenolic inhibitor in Saccharomyces cerevisiae, inhibiting the translation process. Deletion of YRR1 enhances vanillin resistance by promoting translation-related processes. Proteomic changes induced by vanillin stress and YRR1 deletion provide insights into yeast's protective response to vanillin.
MICROBIAL CELL FACTORIES
(2021)
Article
Engineering, Environmental
Fatima Zohra Kahlouche, Souhaib Zerrouki, Mohammed Bouhelassa, Rachida Rihani
Summary: The present study aimed to optimize the combined effect of enzymatic and thermo-chemical pretreatment hydrolysis of bread waste for enhancing the yield of reducing sugars. The optimal conditions for maximum reducing sugars yield were identified, and a good agreement was found between simulated and experimental data using the modified Gompertz equation.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Numchok Manmai, Deepanraj Balakrishnan, Gotore Obey, Nobutaka Ito, Rameshprabu Ramaraj, Yuwalee Unpaprom, Gomathi Velu
Summary: This study focuses on optimizing the chemical pretreatment conditions for microalgae using the Central Composite Design. The findings demonstrate the significant influence of sodium hydroxide concentration and pretreated time on sugar yield. Furthermore, the microalgae biomass was efficiently converted into fermentable sugar for bioethanol fermentation using cellulase enzyme and Trichoderma sp.
Review
Biotechnology & Applied Microbiology
Hongyang Zhang, Pengcheng Zhang, Tao Wu, Haihua Ruan
Summary: The large consumption of non-renewable fossil fuels has led to energy depletion and environmental pollution, necessitating the production of renewable biofuels as an effective alternative to alleviate the energy crisis. Saccharomyces cerevisiae, as an ideal type of biofuel, has gained attention for its high efficiency in bioethanol synthesis. This study provides a systematic summary of the advantages of S. cerevisiae in biosynthesis, discusses research strategies and existing bottlenecks, and proposes reasonable prospects for its bioethanol synthesis.
FERMENTATION-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Nosaibeh Nosrati-Ghods, Susan T. L. Harrison, Adeniyi J. Isafiade, Siew Leng Tai
Summary: This study investigated the relationship between wild type and engineered strains of the same microorganism in terms of kinetic parameters, and proposed a set of correction factors to estimate kinetic constant values for species or strains for which they are not available. The results showed a correlation between wild type and engineered strains, with specific substrate limitation constants being higher in the engineered strains. These correction factors were found to be conserved and could serve as a guide for estimating kinetic constants in other species or strains.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemical Research Methods
Selim Ashoor, Kiran Kumar Mallapureddy, Rajeev K. Sukumaran
Summary: Sequential pretreatment using different NaOH and H2SO4 concentrations was evaluated for efficient hydrolysis of rice straw. The biomass pretreated with sequential H2SO4 and NaOH achieved higher sugar yield compared to sequential NaOH and H2SO4 pretreatment. Increasing NaOH concentration improved the sugar yields in both pretreatment methods.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Jiaxin Chen, Xin Wang, Biying Zhang, Yifan Yang, Yangbo Song, Fan Zhang, Bianfang Liu, Yuan Zhou, Yanglei Yi, Yuanyuan Shan, Xin Lu
Summary: The study investigated the optimization of subcritical water pretreatment and high solid hydrolysis for improving the conversion efficiency of bioethanol from wheat straw. Accumulation of lignin in solid residue after enzymatic hydrolysis was found to not affect the efficiency of bioethanol conversion, indicating a promising strategy for utilizing all components of lignocellulosic biomass.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Sara L. Baptista, Aloia Romani, Joana T. Cunha, Lucilia Domingues
Summary: This study proposes an integrated approach for the valorization of diverse wastes resulting from winemaking processes through the biosynthesis of xylitol and ethanol. Genetically modified yeast strains and optimized process configurations were used to produce xylitol from vine shoots and ethanol from grape must.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Energy & Fuels
Panagiota Tsafrakidou, Georgios Manthos, Dimitris Zagklis, Julian Mema, Michael Kornaros
Summary: This study evaluated the impact of initial substrate concentration and pH values on bioethanol production from Saccharomyces cerevisiae and developed an innovative kinetic model to fit the experimental data. The results showed that both yeast growth and bioethanol production were not substantially affected by the pH values tested in this study.
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)