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
Multidisciplinary Sciences
Eleonora Colantoni, Francesca Palone, Vincenzo Cesi, Beatrice Leter, Giulia Sugoni, Ilaria Laudadio, Anna Negroni, Roberta Vitali, Laura Stronati
Summary: This study demonstrated for the first time that the microalgae I. galbana is an excellent culture medium for the probiotic L. reuteri. The fermented compound derived from the growth of L. reuteri in I. galbana was shown to significantly reduce the adhesiveness and invasiveness of harmful Escherichia coli. These findings open up new possibilities for the use of microalgae as growth media for probiotics and the production of biofunctional compounds.
SCIENTIFIC REPORTS
(2022)
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
Chemistry, Physical
Junhong Wang, Yongqiang Sun, Jingjie Zhou, Yuqi Liu, Huibin Liang, Jinyuan Sun, Guanjie Liu, Martino Di Serio, Rosa Vitiello
Summary: A new type of polymeric surfactant (P-AA-AEO9) with thickening properties was synthesized using fatty alcohol polyoxyethylene ether (AEO9) and acrylic acid (AA). P-AA-AEO9 can be used as a thickener for LAS systems, and its mixed solution with LAS can increase the viscosity and maintain the excellent application performance of LAS.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
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
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
Ecology
Rong Cheng, Ya-ping Liu, Yi-hui Chen, Liang-jie Shen, Jiao-jiao Wu, Lei Shi, Xiang Zheng
Summary: This study investigated the combined effects of nZVI and LAS on the freshwater algae Scenedesmus obliquus, revealing synergistic, additive, and antagonistic effects at different toxic ratios. Additionally, the chlorophyll content in the algae decreased with increasing mixture dose, while protein levels remained relatively unchanged.
Article
Environmental Sciences
Leila Bameri, Iman Sourinejad, Zahra Ghasemi, Nasrin Fazelian
Summary: This study investigated the impacts of titanium dioxide nanoparticles (TiO(2)NPs) on C. muelleri microalgae. The results showed that TiO(2)NPs affected the growth, photosynthetic pigments, protein and lipid contents of the microalgae, and interacted with the cell wall. This suggests that the released TiO(2)NPs may have toxic effects on C. muelleri, an important live feed in mariculture.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Xuezhi Zhao, Lingyan Gong, Guangzhi Liao, Huoxin Luan, Quansheng Chen, Dong Liu, Yujun Feng
Summary: The study found that increasing the surfactant concentration leads to an increase in solubilization capacity, and the addition of additives results in an increase in micellar size. Alkanes are located in the micellar core, while aromatics are in the palisade layer. The transition from micelle to emulsion is proved to be a disperse phase mutation once the maximum solubilization capacity is reached.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Oceanography
Zhong Ye, Li Yanrong, Xu Jilin, Cao Jiayi, Zhou Chengxu, Yan Xiaojun
Summary: This study optimized a method for chloroplast isolation from Isochrysis galbana microalgae and determined the purity and integrity of the isolated chloroplasts. The analysis of chloroplast lipids revealed that glycolipids and acylglycerols were the main components.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2022)
Article
Green & Sustainable Science & Technology
Anis Askari, Farzaneh Vahabzadeh, Mohammad Mahdi Mardanpour
Summary: A microbial fuel cell (MFC) based biosensor was developed to quantitatively determine LAS concentration in wastewater, achieving a linear correlation between current density and LAS concentration within a certain range. The MFC also demonstrated potential for power generation and purification in addition to its accurate biosensing capabilities.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Medicinal
Xiuyuan Ran, Yuhan Shen, Dongjian Jiang, Chenqi Wang, Xinghui Li, Haoyu Zhang, Yunyun Pan, Chenglin Xie, Tonghui Xie, Yongkui Zhang, Changhong Yao
Summary: This study investigated the production of chrysolaminarin, a water-soluble beta-glucan, by Isochrysis zhangjiangensis microalgae through nutrient deprivation and increased light intensity. The results showed that sulfur deprivation was the most effective strategy for inducing chrysolaminarin accumulation, and higher light intensity further enhanced its production. Chrysolaminarin produced under sulfur deprivation exhibited superior antioxidant activity and has the potential for food and pharmaceutical applications.
Article
Biology
Asmaa M. R. Gouda, Ahmed E. Hagras, Mohamed A. Okbah, Maie El-Gammal
Summary: This study investigated the acute toxicity of a household detergent on the blood parameters and histology of Oreochromis niloticus. The results showed that exposure to the detergent caused significant changes in the fish's blood parameters, histological structure, and biochemical indicators.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Biotechnology & Applied Microbiology
Anis Askari, Farzaneh Vahabzadeh, Mohammad Mahdi Mardanpour
Summary: In this study, a single-chamber microbial fuel cell with air cathode was developed for the biodegradation of LAS, achieving a high removal rate of 57%. Through analysis of the dominant bacterial species in the biofilm and the proposed anaerobic biodegradation pathway for LAS, the role of the bioelectrochemical process in improving anaerobic LAS removal was revealed.
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2021)
Article
Engineering, Chemical
Dafnis Barsanulfa Guimaraes, Francisco Javier Cuba Teran, Renata Medici Frayne Cuba
Summary: The presence of linear alkyl sulfonate (LAS) can negatively influence the aggregation and sedimentation of zinc oxide nanoparticles (nano-ZnO), while it does not significantly interfere with the zero charge point (ZCP) of the nano-ZnO. Increasing the LAS concentration can significantly affect the efficiency of the coagulation process.
DESALINATION AND WATER TREATMENT
(2022)
Article
Environmental Sciences
Fatima Zahra Mennaa, Zouhayr Arbib, Jose Antonio Perales
ENVIRONMENTAL TECHNOLOGY
(2019)
Article
Environmental Sciences
Isaias Vicente-Cera, Javier Moreno-Andres, David Amaya-Vias, Miriam Biel-Maeso, Marina G. Pintado-Herrera, Pablo A. Lara-Martin, Asuncion Acevedo-Merino, Juan Antonio Lopez-Ramirez, Enrique Nebot
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2019)
Article
Environmental Sciences
Leonardo Romero-Martinez, Ignacio Rivas-Zaballos, Javier Moreno-Andres, Ignacio Moreno-Garrido, Asuncion Acevedo-Merino, Enrique Nebot
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Engineering, Environmental
Javier Moreno-Andres, Juan Jose Rueda-Marquez, Tomas Homola, Jouni Vielma, Miguel Angel Morinigo, Anna Mikola, Mika Sillanpaa, Asuncion Acevedo-Merino, Enrique Nebot, Irina Levchuk
Article
Environmental Sciences
Elena Villar-Navarro, Carmen Garrido-Perez, Jose A. Perales
Summary: The feasibility of using microalgae biotechnology to improve water quality and produce biomass to replace fish meal or fish oil in two marine fish farms was studied. Results showed that RAS systems enriched with trace metals generate viable streams for microalgae growth, with potential for microalgae biomass to be used as a substitute for fish meal in sea bass feed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Leonardo Romero-Martinez, Ignacio Rivas-Zaballos, Javier Moreno-Andres, Ignacio Moreno-Garrido, Asuncion Acevedo-Merino, Enrique Nebot
Summary: The study found that adding hydrogen peroxide or peroxymonosulfate salt can improve the UV treatment of ballast water, reducing the UV doses required for compliance with BWMC standards.
MARINE POLLUTION BULLETIN
(2021)
Article
Engineering, Chemical
Friday Ojie Ehiguese, M. Judit Gonzalez-Delgado, Carmen Garrido-Perez, Cristiano V. M. Araujo, M. Laura Martin-Diaz
Summary: The study investigated the environmental risk of polycyclic musk compounds in marine environments, finding that HHCB and AHTN showed significant toxicity to certain marine organisms, especially the microalgae Phaeodactylum tricornutum and Isochrysis galbana.
Article
Environmental Sciences
Ignacio Rivas-Zaballos, Leonardo Romero-Martinez, Ignacio Moreno-Garrido, Asuncion Acevedo-Merino, Enrique Nebot
Summary: This study evaluated three photosynthetic species smaller than 10 mu m as potential standard test organisms, and found that Synechococcus sp. has high UV resistance, widespread distribution, and environmental importance, making it a valuable STO for ballast water treatment. The results showed that Synechococcus sp. demonstrated great potential in UV treatments.
MARINE POLLUTION BULLETIN
(2021)
Article
Biotechnology & Applied Microbiology
Elena Villar-Navarro, Carmen Garrido-Perez, Jose A. Perales
Summary: This study investigated the use of six microalgae species for treating effluent from a marine fish farm. Results showed variations in biomass productivity, nutrient removal rate, and biomass composition among different species, highlighting the potential for effective wastewater treatment using microalgae.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Energy & Fuels
Gloria Bravo-Porras, Luis A. Fernandez-Guelfo, Carlos J. Alvarez-Gallego, Maria Carbu, Diego Sales, Luis Romero-Garcia
Summary: Production of Polyhydroxyalkanoates (PHAs) from lignocellulosic biomass using mixed microbial cultures (MMC) is a potential alternative to petroleum-based plastics. In this study, MMC adapted to acidogenic effluent from dark fermentation (DF) of exhausted sugar beet cossettes (ESBC) was tested for its ability to produce PHAs from different synthetic mixtures of volatile fatty acids (VFAs). Experimental results showed that MMC preferred using butyric and valeric acids as carbon sources for PHA production, with high initial concentrations of these acids being counterproductive to PHA production.
BIOMASS CONVERSION AND BIOREFINERY
(2021)
Article
Economics
Isaias Vicente-Cera, Asuncion Acevedo-Merino, Enrique Nebot, Juan Antonio Lopez-Ramirez
JOURNAL OF TRANSPORT GEOGRAPHY
(2020)
Article
Green & Sustainable Science & Technology
Isaias Vicente-Cera, Asuncion Acevedo-Merino, Juan Antonio Lopez-Ramirez, Enrique Nebot
INTERNATIONAL JOURNAL OF SUSTAINABLE TRANSPORTATION
(2020)
Article
Biochemistry & Molecular Biology
Javier Moreno-Andres, Ruben Rios Quintero, Asuncion Acevedo-Merino, Enrique Nebot
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2019)