Article
Environmental Sciences
Aigars Lavrinovics, Linda Mezule, Pavels Cacivkins, Talis Juhna
Summary: This study investigated the optimal initial conditions for the growth, phosphate removal, polyphosphate accumulation, and protein productivity of Chlorella vulgaris. Results showed that a 10-day period of phosphate deficiency, accompanied by low initial biomass concentration, significantly increased phosphate removal, polyphosphate accumulation, and protein productivity. The optimization model suggested that one-day biomass P-starvation with low initial biomass concentration was the most effective combination. These findings provide insights into using microalgae exposure to phosphorus stress for rapid phosphorus removal in wastewater treatment.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Energy & Fuels
S. M. Zakir Hossain, N. Sultana, M. M. Hossain, S. A. Razzak
Summary: This study investigated the effects of light-dark cycles and NaNO3 dose on Chlorella kessleri microalgal-specific growth rate, biomass productivity, and intracellular lipid productivity. The results of single-objective and multi-response optimization showed the maximum achievable values and the optimal culture conditions for the production of lipid from microalgae. The use of central composite design with desirability function was proven to be useful in designing and operating photobioreactors.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Agricultural Engineering
Charles B. Felix, Wei-Hsin Chen, Jo-Shu Chang, Young -Kwon Park, Samrand Saeidi, Gopalakrishnan Kumar
Summary: Oxidative torrefaction is recommended for improving the fuel properties of microalgae as solid biofuels. Temperature, time, and O2 concentration have significant effects on various parameters such as solid yield, energy yield, and higher heating value. The optimal conditions for this process are 200°C, 10.6 min, and 12% O2, resulting in an energy yield of 98.73% and an enhancement factor of 1.08. Furthermore, it shows higher reactivity under an air environment compared to inert torrefaction conditions.
BIORESOURCE TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Lorenzo Beretta, Silvia Bonfanti, Jacopo Fiocchi, Francesc Font-Clos, Roberto Guerra, Ausonio Tuissi, Stefano Zapperi
Summary: Automatic design of mechanical metamaterials can achieve higher efficiency than human-designed solutions, leading to a multitude of possible functional solutions.
Article
Engineering, Chemical
Hani Gilani, Hadi Sahebi, Mohammad Saeed Jabalameli, Seyed Javad Hosseininezhad
Summary: The study presents a wastewater-based biofuel supply chain that addresses potential operational risks and highlights the higher reliance on energy production from microalgae.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Medicinal
Rainier Barrett, Andrew D. White
Summary: The research explored methods like active learning and meta-learning to reduce the number of experiments needed to build a predictive model. It was found that the meta-learning method Reptile improved the average accuracy across data sets, but combining meta-learning with active learning did not consistently offer benefits.
JOURNAL OF CHEMICAL INFORMATION AND MODELING
(2021)
Review
Agricultural Engineering
Ranjna Sirohi, Ashutosh Kumar Pandey, Panneerselvam Ranganathan, Shikhangi Singh, Aswathy Udayan, Mukesh Kumar Awasthi, Anh Tuan Hoang, Chaitanya Reddy Chilakamarry, Sang Hyoun Kim, Sang Jun Sim
Summary: There has been increasing attention on the use of photobioreactors for microalgae cultivation. Understanding the state-of-the-art designs, advantages, and limitations is crucial for classifying and applying different photobioreactors effectively.
BIORESOURCE TECHNOLOGY
(2022)
Article
Mathematics, Interdisciplinary Applications
Yunsong Gu
Summary: In this paper, a method of controlling the cost of marine fishery culture based on big data analysis algorithm is proposed. By establishing a cost analysis model, utilizing big data correlation analysis method, and applying information fusion and adaptive optimization techniques, the stability and adaptability of cost control in marine fishery culture is improved.
DISCRETE DYNAMICS IN NATURE AND SOCIETY
(2022)
Article
Green & Sustainable Science & Technology
Diego Penaranda, Hubert Bonnefond, Freddy Guiheneuf, Marjorie Morales, Olivier Bernard
Summary: This study focuses on the assessment and reduction of environmental impact for a breakthrough microalgal production system based on rotating biofilm. Eco-design parameters such as NH3 emission factor, fabric support properties, and electricity consumption were identified as crucial for optimizing the system. By eco-designing this new technology, the environmental impact was reduced by 25% to 88.3%. The environmental footprint of algae meal from rotating algal biofilms outperformed other production scenarios and achieved a 70.8% reduction in environmental impact compared to conventional aquafeeds.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Biochemistry & Molecular Biology
Ioulia Georgiopoulou, Soultana Tzima, Georgia D. Pappa, Vasiliki Louli, Epaminondas Voutsas, Kostis Magoulas
Summary: The study focused on the extraction and optimization of bioactive compounds from microalgae Chlorella vulgaris, resulting in optimal conditions of temperature, duration, and solvent-to-biomass ratio for a successful extraction process. The experimental data and predicted results were found to be comparable, validating the reliability of the regression models for future predictions.
Article
Energy & Fuels
Kathirvel Brindhadevi, Thangavel Mathimani, Ramya Ganesan, Manigandan Sekar, Sabarathinam Shanmugam, Tran Nhat Phuong, Sulaiman Ali Alharbi, Arunachalam Chinnathambi, Usawadee Chanasut, Kanda Whangchai
Summary: The research optimizes biodiesel production conditions through central composite design, finding that the highest yield of FAME was achieved at 3% CaO concentration. This indicates the significant role of CaO catalyst in biodiesel production from Scenedesmus sp.
Article
Biochemistry & Molecular Biology
Rui-Xiang Li, Ning-Ning Zhang, Bin Wu, Bo OuYang, Hong-Bin Shen
Summary: The multiobjective algorithm Hydra for protein design introduced in this report utilizes two different energy functions to optimize solutions simultaneously. By leveraging the latent quantitative relationship between different amino acid types, the algorithm facilitates the search process, resulting in high accuracy and a high-speed search process.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2021)
Article
Environmental Sciences
Stephanie Aparicio, Rebecca Serna-Garcia, Aurora Seco, Jose Ferrer, Luis Borras-Falomir, Angel Robles
Summary: The study assessed a microalgae model applied to a Membrane Photobioreactor (MPBR) pilot plant through a global sensitivity and uncertainty analysis. The influential factors of the model were identified, calibrated offline or online, and the model's uncertainty was evaluated. The results indicated a need for offline calibration methods to improve model performance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Applied
Chen Fan, Yang Liu, Yuhang Shan, Xueli Cao
Summary: This study utilized natural deep eutectic solvent for lutein recovery from Scenedesmus sp, showing improved yield and stability under specific conditions compared to conventional methods using organic solvents.
Article
Computer Science, Interdisciplinary Applications
Yuchan Ahn, Junghwan Kim
Summary: A two-stage stochastic model was developed to optimize the supply chain network for microalga-based biodiesel production, considering uncertain CO2 supply and biodiesel demand as parameters. The optimal configuration was significantly influenced by uncertain biodiesel demand compared to uncertain CO2 emission.
COMPUTERS & CHEMICAL ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Bahar Aslanbay Guler, Irem Deniz, Zeliha Demirel, Esra Imamoglu
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
(2020)
Article
Biotechnology & Applied Microbiology
Bahar Aslanbay Guler, Irem Deniz, Zeliha Demirel, Ozlem Yesil-Celiktas, Esra Imamoglu
BIOCHEMICAL ENGINEERING JOURNAL
(2020)
Article
Biotechnology & Applied Microbiology
Bahar Aslanbay Guler, Irem Deniz, Zeliha Demirel, Suphi S. Oncel, Esra Imamoglu
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2020)
Article
Engineering, Chemical
Bahar Aslanbay Guler, Irem Deniz, Zeliha Demirel, Esra Imamoglu
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Marine & Freshwater Biology
Irem Deniz, Zeliha Demirel, Esra Imamoglu, Meltem Conk-Dalay
Summary: This study optimized the cryopreservation process for two commercially used microalgal strains, achieving long-term storage with high cell viabilities. The generated models were found to be in good agreement with experimental results, revealing holistic results for storage of microalgal strains in a stable state for industrial applications.
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM
(2022)
Article
Chemistry, Multidisciplinary
Bahar Aslanbay Guler, Zeliha Demirel, Esra Imamoglu
Summary: The controlled injection method enables the production of more regular chemobrionic structures with high experimental reproducibility. It allows the extraction and comprehensive characterization of tubular structures from the reaction vessel, and the morphological, chemical, and thermal features of these structures are highly correlated with those obtained in the direct injection method.
Article
Biochemical Research Methods
Bahar Aslanbay Guler, Pelin Saglam-Metiner, Irem Deniz, Zeliha Demirel, Ozlem Yesil-Celiktas, Esra Imamoglu
Summary: This study aimed to determine the operation conditions for astaxanthin extraction from wet Haematococcus pluvialis using microwave-assisted extraction. The results showed that the treatment with astaxanthin extracted from wet H. pluvialis by microwave-assisted extraction exhibited anti-cancer activity on lung cancer cells, indicating its potential for utilization in the industry.
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Bahar Aslanbay Guler, Zeliha Demirel, Esra Imamoglu
Summary: From a bioengineering perspective, incorporating microalgae into chemobrionic structures can lead to functional materials with potential in various applications. In this study, the incorporation of Arthrospira platensis microalgae was successfully achieved, resulting in the development of a bioactive and biomimetic material called biochemobrionic. Various characterization analyses confirmed the presence of microalgal biomass and extract, and it was demonstrated that the incorporation of A. platensis extract improved the mechanical strength of the chemobrionics. Cytotoxicity, biodegradability, and antioxidant activity assays further revealed the bioactive potential of the extract-incorporated biochemobrionics.
APPLIED MATERIALS TODAY
(2023)
Review
Food Science & Technology
Bahar Aslanbay Guler, Esra Imamoglu
Summary: Marker-assisted technologies have great potential in genetic diversity studies of common food plants like potato, corn, and tomato. Molecular markers such as Simple Sequence Repeats and Single Nucleotide Polymorphism are commonly used due to their high polymorphism and specificity. However, further research is needed to apply more efficient technologies for plant diversity studies. Evaluation: 7 points.
FOODS AND RAW MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Bahar Aslanbay Guler, Zeliha Demirel, Esra Imamoglu
Summary: Chemical gardens, as self-organized precipitation structures, have attracted great interest from researchers. Different production techniques have been evaluated for their effects on the growth and characteristics of these structures.
Review
Biochemistry & Molecular Biology
Ugur Tepe, Bahar Aslanbay Guler, Esra Imamoglu
Summary: 3D cell culture approaches involve visualization of cell-cell interactions and preservation of natural growth patterns. Magnetic levitation technology has been implemented on 3D cell cultures using magnetic nanoparticles (positive magnetophoresis) or a magnetic field in a high-intensity medium (negative magnetophoresis). These techniques enable manipulation of 3D culture, customization, and density data display.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Marine & Freshwater Biology
Bahar Aslanbay Guler, Irem Deniz, Zeliha Demirel, Esra Imamoglu
Summary: Large scale algal biomass production presents challenges in sustainability, environmental ethics, and economic concerns. This study conducted a scale-up procedure using Haematococcus pluvialis as a model organism and compared the effects of different approaches on biomass production.
AQUATIC SCIENCES AND ENGINEERING
(2022)
Article
Marine & Freshwater Biology
Neslihan Sener, Zeliha Demirel, Esra Imamoglu, Meltem Conk Dalay
Summary: Commercial carotenoids of green microalgae have significant applications in various industries. This study investigated the effects of physical and chemical parameters on carotenoid contents in microalgal species and used statistical design to optimize cultivation conditions and enhance carotenoid concentration. The results showed that A. convolutus had the highest carotenoid concentration and the optimal conditions were determined. This study suggests that the RSM approach can be used for large-scale production of carotenoids by A. convolutus.
AQUATIC SCIENCES AND ENGINEERING
(2022)
Review
Fisheries
Bahar Aslanbay Guler, Esra Imamoglu
Summary: Fucoxanthin, a xanthophyll pigment found in marine plants, has various physiological functions and anti-pathological properties. It has wide applications in preventing and treating chronic diseases.
SU URUNLERI DERGISI
(2021)
Article
Biology
Zeliha Demirel, Esra Imamoglu, Meltem Conk Dalay
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
(2020)
