Article
Biotechnology & Applied Microbiology
Yuanjun Xia, Mutsumi Sekine, Minamo Hirahara, Hidemi Kishinami, Fatimah Md. Yusoff, Tatsuki Toda
Summary: Demand for high fucoxanthin and docosahexaenoic acid (DHA) content in Isochrysis galbana is increasing, and it is necessary to develop large-scale cultivation systems with low energy and cost. This study investigated the effects of CO2 concentration and frequency of supply on the productivity and fucoxanthin content of I. galbana. Continuous CO2 supply at 5% concentration showed the highest biomass productivity, while continuous supply at 10% concentration inhibited growth. Intermittent supply of CO2 at 5% and 10% concentrations promoted productivity and fucoxanthin accumulation.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Biotechnology & Applied Microbiology
J. Camacho-Rodriguez, J. J. Gallardo-Rodriguez, M. C. Ceron-Garcia, F. Garcia-Camacho, E. Molina-Grima
Summary: The nutrient content of a commercial seawater culture medium for growing Isochrysis galbana was optimized using a genetic algorithm-based stochastic strategy, which significantly improved polyunsaturated fatty acids (PUFAs) productivity by 15% and increased carotenoids by 50% dry weight. The genetic algorithm approach also allowed for the reduction of nutrient requirements, such as N (25%), Mo (20%), Mn (60%), Co (60%), and Cu (60%).
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Fengru Ge, Kunyan Song, Zixiang Yang, Jinmeng Li, Feng Yan, Mengyan Zhang, Binbin Huang, Guiming Fu, Hongli Zheng
Summary: The study found that using leftover dough hydrolysates as carbon resources significantly enhanced the cell growth and docosahexaenoic acid (DHA) production of Isochrysis galbana. The addition of different concentrations of sodium nitrate (NaNO3) also affected the DHA yield.
FERMENTATION-BASEL
(2023)
Article
Fisheries
Norhayati B. Suhaimi, Penz P. Kwan, Sanjoy Banerjee, Mohamed Shariff
Summary: The marine microalgae Isochrysis galbana cultured under different light conditions showed variations in cell density and proximate composition, with higher growth rate under fluorescent light and higher lipid content under yellow LED.
AQUACULTURE RESEARCH
(2021)
Article
Biology
Gennaro Riccio, Kevin A. Martinez, Adrianna Ianora, Chiara Lauritano
Summary: Isochrysis galbana, a marine flagellate, is rich in high-value compounds and has shown antioxidant, antidiabetes, antituberculosis, and anticancer activities, particularly against melanoma cells. Transcriptomic and bioactivity studies confirmed the activation of metabolic pathways involved in the synthesis of bioactive compounds, suggesting new potential applications in cancer prevention and treatment.
Article
Environmental Sciences
Natalia Shoman, Ekaterina Solomonova, Arkady Akimov, Olga Rylkova
Summary: The primary patterns of alterations in Isochrysis galbana's morphology, structure, function, fluorescence, and cytometric characteristics under the impact of different concentrations of copper in ionic and nanoform were investigated. It was found that copper in nanoform is approximately 10 times less harmful than copper in its ionic form. Both types of copper had similar effects on cells, including growth inhibition, reduced photosynthetic efficiency, increased chlorophyll a volume and intracellular concentration, increased reactive oxygen species production, and decreased esterase activity. CuO NPs significantly affected the cell wall surface mechanically. The final density of cultures in the stationary growth phase depended on the introduced concentration of the contaminant and decreased with increasing initial copper content. At sublethal concentrations, I. galbana culture was divided into sensitive and resistant subpopulations, with the latter being able to ensure population survival and recovery under favorable conditions.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Biotechnology & Applied Microbiology
Ceres A. Molina-Cardenas, Marcial L. Lizarraga-Partida, Abraham Guerrero, M. del Pilar Sanchez-Saavedra
Summary: The microalga Isochrysis galbana was found to inhibit the density of pathogenic Vibrio vulnificus strains when co-cultured. The inhibition persisted for at least 12 days after inoculation. These findings suggest that I. galbana cultures can be used in aquaculture settings to reduce the load of V. vulnificus in commercially important organisms.
JOURNAL OF APPLIED PHYCOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Lilin Han, Jiangbing Qiu, Aifeng Li, Dongyue Li, Yongmeng Yang, Guixiang Wang, Peiyao Li
Summary: The phycotoxin dinophysistoxins have a wide distribution in marine environments and pose potential threats to marine organisms and human health. This study investigated the effects of dissolved dinophysistoxin-1 (DTX1) on the growth, pigment contents, photosynthetic efficiency, oxidative stress response, and cell cycle of the marine microalga Isochrysis galbana. The results showed that DTX1 significantly inhibited the growth of I. galbana and reduced the photosynthetic efficiency and pigment contents in a dose-dependent manner. DTX1 also increased the levels of reactive oxygen species (ROS) and the contents or activities of oxidative stress-related markers. Cell cycle analysis revealed that DTX1 arrested the cell cycle of I. galbana at the G2/M phase. This study improves our understanding of the ecological effects of DTX1 on marine microalgae and provides fundamental data for establishing water quality criteria for dinophysistoxins in marine organisms.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY C-TOXICOLOGY & PHARMACOLOGY
(2023)
Article
Environmental Sciences
Hongli Zheng, Fengru Ge, Kunyan Song, Zixiang Yang, Jinmeng Li, Feng Yan, Xiaodan Wu, Qi Zhang, Yuhuan Liu, Roger Ruan
Summary: Leftover dough hydrolysates can be used to cultivate Isochrysis galbana and produce DHA, utilizing a waste product to produce valuable fish oil. CO2 enrichment significantly affects cell growth and DHA production. Two-stage cultivation strategy can enhance DHA yield.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Microbiology
Xinfeng Xiao, Wenfang Li, Shuangwei Li, Xingsheng Zuo, Jie Liu, Linke Guo, Xiao Lu, Linlin Zhang
Summary: This study investigates the effects of microplastics on microalgae in the food chain. Polyethylene microplastics have negative impacts on cell growth and protein levels, potentially affecting their use as aquaculture feed. Transcriptome analysis and microbial analysis provide insights into the molecular mechanisms and changes in microbial communities. It emphasizes the importance of reducing microplastic release to protect aquatic ecosystems.
Article
Biotechnology & Applied Microbiology
Ricardo M. Chaloub, Victor Hugo S. Monteiro, Mario Giordano
Summary: Low salinities have a negative impact on biomass production, biovolume, and final yield of dry biomass in Isochrysis galbana. However, they do not significantly affect the cellular content of chlorophylls and carotenoids. The content of these pigments increases in the stationary growth phase, regardless of salinity. The total lipid content of the cells is not modified by decreasing salinity. In addition, low salinities reduce the photosynthetic efficiency of the cells, particularly in the stationary growth phase.
JOURNAL OF APPLIED PHYCOLOGY
(2023)
Article
Microbiology
Jia-Yi Cao, Ying-Ying Wang, Min-Nan Wu, Zhou-Yan Kong, Jing-Hao Lin, Ting Ling, Si-Min Xu, Shuo-Nan Ma, Lin Zhang, Cheng-Xu Zhou, Xiao-Jun Yan, Ji-Lin Xu
Summary: The research shows that the marine heterotrophic bacterium Alteromonas macleodii can enhance the growth of Isochrysis galbana, inhibit stress responses, enhance photosynthesis and biosynthesis, and protect the algae from oxidative stress. There may be an exchange of fixed organic carbon and other biomolecules between the autotroph and heterotroph in the co-culture of I. galbana and A. macleodii.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Aifeng Li, Jianwei Liu, Jiangbing Qiu, Guixiang Wang, Xianyao Zheng, Ying Ji, Guowang Yan, Peng Zhao, Xizhen Wu, Wenhui Yan, Lei Zhang, Min Li, Yilei Fu
Summary: This study reveals that BMAA can inhibit the growth of marine microalgae, limit the production of ammonia and glutamate through down-regulation of specific genes, and affect gene expression related to photosynthesis and protein synthesis, resulting in cell cycle arrest and accumulation of misfolded proteins.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Fisheries
Laura Ballesteros-Redondo, Harry W. Palm, Hanno Bahrs, Alexander Wacker, Adrian A. Bischoff
Summary: The effect of microalgae on the population performance and fatty acid composition of Apocyclops panamensis was studied. The results showed that the group fed with Isochrysis galbana as the main diet performed the best, with higher animal density and proportion of fatty acids.
AQUACULTURE REPORTS
(2023)
Article
Fisheries
Ying-Ying Wang, Si-Min Xu, Jia-Yi Cao, Min-Nan Wu, Jing-Hao Lin, Cheng-Xu Zhou, Lin Zhang, Hai-Bo Zhou, Yan-Rong Li, Ji-Lin Xu, Xiao-Jun Yan
Summary: In this study, a growth-promoting bacterial strain Marinobacter sp. was found to significantly enhance the growth and yield of I. galbana, as well as promote the synthesis of DHA. This research provides promising applications for improving productivity and sustainability of aquaculture algal rearing systems.
Article
Computer Science, Information Systems
V. Flores, J. F. Villa, M. A. Porta, J. Gutierrez
IEEE LATIN AMERICA TRANSACTIONS
(2015)
Article
Engineering, Electrical & Electronic
Joaquin Gutierrez Jagueey, Juan Francisco Villa-Medina, Aracely Lopez-Guzman, Miguel Angel Porta-Gandara
IEEE SENSORS JOURNAL
(2015)
Article
Chemistry, Analytical
E. Romero-Vivas, F. D. Von Borstel, C. J. Perez-Estrada, D. Torres-Arino, J. F. Villa-Medina, J. Gutierrez
ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
(2015)
Article
Automation & Control Systems
Fernando D. Von Borstel Luna, Edgar de la Rosa Aguilar, Jaime Suarez Naranjo, Joaqun Gutierrez Jaguey
IEEE TRANSACTIONS ON SYSTEMS MAN CYBERNETICS-SYSTEMS
(2017)
Article
Engineering, Electrical & Electronic
Joaquin Gutierrez, Juan Francisco Villa-Medina, Alejandra Nieto-Garibay, Miguel Angel Porta-Gandara
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2014)
Article
Biochemical Research Methods
Patricia Carvajal-Lopez, Fernando D. Von Borstel, Amada Torres, Gabriella Rustici, Joaquin Gutierrez, Eduardo Romero-Vivas
IEEE-ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS
(2020)
Article
Green & Sustainable Science & Technology
Bateer Baiyin, Kotaro Tagawa, Joaquin Gutierrez
Article
Computer Science, Artificial Intelligence
Fernando D. Von Borstel, Martha S. Haro, J. Francisco Villa-Medina, Joaquin Gutierrez
Summary: In this study, low-cost MEMS sensors were used to measure the motion of a flexible swimming robotic fish and estimate the normal force exerted by the propulsion mechanism. The analysis of the caudal fin motion in comparison with the subcarangiform swimming kinematics model provides valuable insights into the normal force vectors.
JOURNAL OF INTELLIGENT & ROBOTIC SYSTEMS
(2022)
Article
Computer Science, Artificial Intelligence
Fernando D. Von Borstel, J. Francisco Villa-Medina, Joaquin Gutierrez
Summary: This paper presents a modeling, simulation, and implementation approach for mobile robots using wireless robotic components (WRCs), based on a model-based development framework using UML and CPNs. The proposed framework customizes UML diagrams based on robot platform analysis and translates WRC behavioral design specifications into the formalism of CPNs. The experimental results validate the effectiveness of this framework.
JOURNAL OF INTELLIGENT & ROBOTIC SYSTEMS
(2022)
Article
Computer Science, Artificial Intelligence
Andrea de Anda-Trasvina, Alejandra Nieto-Garibay, Joaquin Gutierrez
Summary: The paper presents an automated system that uses natural language expressions to report the evolution of a process. By analyzing wireless sensor data and process patterns, the system generates linguistic reports of the composting process, including information about the current status, trend, and behavior. The system allows instant communication with users via a messaging app, providing decision support for processes that require data interpretation supervision.
APPLIED SOFT COMPUTING
(2022)
Article
Agronomy
Wael M. Elmessery, Joaquin Gutierrez, Gomaa G. Abd El-Wahhab, Ibrahim A. Elkhaiat, Ibrahim S. El-Soaly, Sadeq K. Alhag, Laila A. Al-Shuraym, Mohamed A. Akela, Farahat S. Moghanm, Mohamed F. Abdelshafie
Summary: The development of AI-based management processes is crucial for addressing the challenges in poultry farming, including disease control and chicken observation. This study developed a model using a dataset of visual and thermal images, achieving exceptional performance in detecting broilers and classifying pathological phenomena.
Article
Computer Science, Information Systems
Roberto Carlos Morales-Hernandez, Joaquin Gutierrez Jaguey, David Becerra-Alonso
Summary: The classification of scientific articles aligned to Sustainable Development Goals is crucial for research institutions and universities. This study applies Natural Language Processing techniques to classify articles according to the 17 Sustainable Development Goals, comparing the performance of different text classification models.
Article
Engineering, Electrical & Electronic
Juan Francisco Villa-Medina, Joaquin Gutierrez, Victor Manuel Gomez-Munoz, Miguel Angel Porta-Gandara
Summary: An underwater caterpillar vehicle has been designed for profiling along the beach and shoreface in zones inaccessible to bathymetry or manual measurements. The system, consisting of caterpillar tracks and measuring components, records and transmits data wirelessly to a host computer, demonstrating reliability in testing along the Pacific Coast of the Baja California Peninsula, Mexico.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Robotics
Juan Francisco Villa-Medina, Miguel Angel Porta-Gandara, Joaquin Gutierrez
Summary: A versatile architecture for autonomous vehicles is introduced, utilizing standalone wireless robotic components that interact through a coordinator to form a built-in network. Testing on marine and terrestrial platforms demonstrate the system's adaptability and portability for a variety of autonomous vehicles.
Article
Computer Science, Information Systems
Patricia Carvajal Lopez, Fernando D. Von Borstel Luna, Joaquin Gutierrez Jaguey, Humberto Mejia Ruiz, Gabriela Rustici, Eduardo Romero Vivas
COMPUTACION Y SISTEMAS
(2018)