Enhancing biomass and lipid accumulation by a novel microalga for unsterilized piggery biogas slurry remediation
This study examines the growth of a novel algae Chlorella sp. YSD-2 and the removal of nutrients from the BS using different pretreatment methods, including dilution ratio and sterilization. The highest biomass production (1.84 g L-1) was achieved in the 1:2 unsterilized biogas slurry, which was 2.03 times higher than that in the sterilized group, as well as higher lipid productivity (17.29 mg L-1 d-1). Nevertheless, the sterilized biogas slurry at a 1:1 dilution ratio exhibited the most notable nutrient-removal efficiency, with COD at 71.97%, TP at 91.32%, and TN at 88.80%. Additionally, the analysis of 16S rRNA sequencin...
Source: Environmental Science and Pollution Research International - April 16, 2024 Category: Environmental Health Authors: Li Huang Xingling Zhao Kai Wu Chengyue Liang Jing Liu Hong Yang Fang Yin Changmei Wang Bin Yang Wudi Zhang Source Type: research
A sulfated exopolysaccharide derived from Chlorella sp. exhibiting in vitro anti- α-D-Glucosidase activity
This study aimed to isolate a polysaccharide-producing microalga from an extreme ecosystem and to evaluate its capacity to inhibit the α-D-glucosidase enzyme. Chlorella strain is isolated from hypersaline Lake in the Algerian desert. The exopolysaccharide extraction was performed by the concentration of free-cell supernatant in a rotary evaporator. The infrared analysis showed a characteristic footprint of carbohydrates with particular functional groups, such as sulfate. Gas chromatography-mass spectrometry has revealed a hetero-exopolysaccharide composed of galactose 35.75%, glucose 21.13%, xylose 16.81%, fructose 6.96%,...
Source: Archives of Microbiology - April 16, 2024 Category: Microbiology Authors: Karima Guehaz Zakaria Boual Alia Telli Hicham Meskher Hakim Belkhalfa Guillaume Pierre Philippe Michaud Alessandra Adessi Source Type: research
Biological Activity of Endometabolites of Microalgae Chlorella sorokiniana
Industrial Biotechnology,Volume 20, Issue 2, Page 67-76, April 2024. (Source: Industrial Biotechnology)
Source: Industrial Biotechnology - April 16, 2024 Category: Biotechnology Authors: Mikhail S. Temnov Yana V. Ustinskaya Kirill I. Meronyuk Dmitry S. Dvoretsky Source Type: research
Molecular mechanism of dissolvable metal nanoparticles-enhanced CO < sub > 2 < /sub > fixation by algae: Metal-chlorophyll synthesis
This study selected six representative metal NPs (Fe3O4, ZnO, CuO, NiO, MgO, and Ag) to investigate their impacts on CO2 fixation by algae (Chlorella vulgaris). We discovered an intriguing phenomenon that bivalent metal ions released from the metal NPs, especially from ZnO NPs, substituted Mg2+ within the porphyrin ring. This interaction led to 81.8% and 76.1% increases in Zinc-chlorophyll and Magnesium-chlorophyll contents within algal cells at 0.01 mM ZnO NPs, respectively. Integrating metabolomics and transcriptomics analyses revealed that ZnO NPs mainly promoted the photosynthesis-antenna protein pathway, porphyrin and...
Source: Environmental Pollution - April 15, 2024 Category: Environmental Health Authors: Ruohua Qu Na Liu Qiong Wen Jingyi Guo Fei Ge Source Type: research
Chronic toxic effects of erythromycin and its photodegradation products on microalgae Chlorella pyrenoidosa
This study initially focused on examining the acute effects of erythromycin (ERY), then explored the chronic impacts of ERY PDPs on Chlorella pyrenoidosa. ERY of 4.0 - 32 mg/L ERY notably inhibited the cell growth and chlorophyll synthesis. The determined 96 h median effective concentration of ERY to C. pyrenoidosa was 11.78 mg/L. Higher concentrations of ERY induced more serious oxidative damage, antioxidant enzymes alleviated the oxidative stress. 6 PDPs (PDP749, PDP747, PDP719, PDP715, PDP701 and PDP557) were identified in the photodegradation process of ERY. The predicted combined toxicity of PDPs increased in the firs...
Source: Aquatic Toxicology - April 14, 2024 Category: Toxicology Authors: Jiping Li Wei Li Naisen Liu Chenggong Du Source Type: research
Chronic toxic effects of erythromycin and its photodegradation products on microalgae Chlorella pyrenoidosa
This study initially focused on examining the acute effects of erythromycin (ERY), then explored the chronic impacts of ERY PDPs on Chlorella pyrenoidosa. ERY of 4.0 - 32 mg/L ERY notably inhibited the cell growth and chlorophyll synthesis. The determined 96 h median effective concentration of ERY to C. pyrenoidosa was 11.78 mg/L. Higher concentrations of ERY induced more serious oxidative damage, antioxidant enzymes alleviated the oxidative stress. 6 PDPs (PDP749, PDP747, PDP719, PDP715, PDP701 and PDP557) were identified in the photodegradation process of ERY. The predicted combined toxicity of PDPs increased in the firs...
Source: Aquatic Toxicology - April 14, 2024 Category: Toxicology Authors: Jiping Li Wei Li Naisen Liu Chenggong Du Source Type: research
Removal of polycyclic aromatic hydrocarbons (PAHs) from produced water using the microalgae Chlorella vulgaris cultivated in mixotrophic and heterotrophic conditions
This study showed that it is possible to allow an environmental remediation strategy that significantly reduces effluent toxicity and generates high value-added biomass in contaminated effluents rich in nutrients and carbon, based on a circular bioeconomy model.PMID:38614391 | DOI:10.1016/j.chemosphere.2024.141931 (Source: Chemosphere)
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: Katerine Botero Ñañez Karen Daniela Rios Ramirez Ol ívia Maria Cordeiro de Oliveira Claudia Yolanda Reyes Ícaro Thiago Andrade Moreira Source Type: research
Modeling and optimization of biomass productivity of Chlorella vulgaris using response surface Methodology, analysis of variance and Machine learning for carbon dioxide capture
This study explores bioremediation's effectiveness in reducing carbon emissions through the use of microalgae Chlorella vulgaris, known for capturing carbon dioxide and producing biomass. The impact of temperature and light intensity on productivity and carbon dioxide capture was investigated, and cultivation conditions were optimized in a photobioreactor using response surface methodology (RSM), analysis of variance (ANOVA), and deep neural networks (DNN). The optimal conditions determined were 28.74 °C and 225 μmol/m2/s with RSM, and 29.55 °C and 226.77 μmol/m2/s with DNN, closely aligning with literature values (29 ...
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Mehmood Yaqoob Janjua Azaam Azfar Zaheer Asghar Khurrum Shehzad Source Type: research
Growth, nutrient removal, and lipid productivity promotion of Chlorella sorokiniana by phosphate solubilizing bacteria Bacillus megatherium in swine wastewater: Performances and mechanisms
This study provided novel insights to enhance microalgae-based nutrient removal combined with biofuel production in practical wastewater, especially with complex forms of phosphorus.PMID:38614145 | DOI:10.1016/j.biortech.2024.130697 (Source: Bioresource Technology)
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Ya-Ming Ge Wan-Chuan Xing Xiu Lu Shao-Rou Hu Jun-Zhi Liu Wei-Feng Xu Hai-Xiang Cheng Feng Gao Qing-Guo Chen Source Type: research
Modeling and optimization of biomass productivity of Chlorella vulgaris using response surface methodology, analysis of variance and machine learning for carbon dioxide capture
This study explores bioremediation's effectiveness in reducing carbon emissions through the use of microalgae Chlorella vulgaris, known for capturing carbon dioxide and producing biomass. The impact of temperature and light intensity on productivity and carbon dioxide capture was investigated, and cultivation conditions were optimized in a photobioreactor using response surface methodology (RSM), analysis of variance (ANOVA), and deep neural networks (DNN). The optimal conditions determined were 28.74 °C and 225 μmol/m2/s with RSM, and 29.55 °C and 226.77 μmol/m2/s with DNN, closely aligning with literature values (29 ...
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Mehmood Yaqoob Janjua Azaam Azfar Zaheer Asghar Khurrum Shehzad Quraishi Source Type: research
Growth, nutrient removal, and lipid productivity promotion of Chlorella sorokiniana by phosphate solubilizing bacteria Bacillus megatherium in swine wastewater: Performances and mechanisms
This study provided novel insights to enhance microalgae-based nutrient removal combined with biofuel production in practical wastewater, especially with complex forms of phosphorus.PMID:38614145 | DOI:10.1016/j.biortech.2024.130697 (Source: Bioresource Technology)
Source: Bioresource Technology - April 13, 2024 Category: Biotechnology Authors: Ya-Ming Ge Wan-Chuan Xing Xiu Lu Shao-Rou Hu Jun-Zhi Liu Wei-Feng Xu Hai-Xiang Cheng Feng Gao Qing-Guo Chen Source Type: research
Removal of polycyclic aromatic hydrocarbons (PAHs) from produced water using the microalgae Chlorella vulgaris cultivated in mixotrophic and heterotrophic conditions
This study showed that it is possible to allow an environmental remediation strategy that significantly reduces effluent toxicity and generates high value-added biomass in contaminated effluents rich in nutrients and carbon, based on a circular bioeconomy model.PMID:38614391 | DOI:10.1016/j.chemosphere.2024.141931 (Source: Chemosphere)
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: Katerine Botero Ñañez Karen Daniela Rios Ramirez Ol ívia Maria Cordeiro de Oliveira Claudia Yolanda Reyes Ícaro Thiago Andrade Moreira Source Type: research
Removal of polycyclic aromatic hydrocarbons (PAHs) from produced water using the microalgae Chlorella vulgaris cultivated in mixotrophic and heterotrophic conditions
This study showed that it is possible to allow an environmental remediation strategy that significantly reduces effluent toxicity and generates high value-added biomass in contaminated effluents rich in nutrients and carbon, based on a circular bioeconomy model.PMID:38614391 | DOI:10.1016/j.chemosphere.2024.141931 (Source: Chemosphere)
Source: Chemosphere - April 13, 2024 Category: Chemistry Authors: Katerine Botero Ñañez Karen Daniela Rios Ramirez Ol ívia Maria Cordeiro de Oliveira Claudia Yolanda Reyes Ícaro Thiago Andrade Moreira Source Type: research
Near telomere-to-telomere genome assemblies of two Chlorella species unveil the composition and evolution of centromeres in green algae
Centromeres play a crucial and conserved role in cell division, although their composition and evolutionary history in green algae, the evolutionary ancestors of land plants, remains largely unknown. (Source: BMC Genomics)
Source: BMC Genomics - April 10, 2024 Category: Genetics & Stem Cells Authors: Bo Wang, Yanyan Jia, Ningxin Dang, Jie Yu, Stephen J. Bush, Shenghan Gao, Wenxi He, Sirui Wang, Hongtao Guo, Xiaofei Yang, Weimin Ma and Kai Ye Tags: Research Source Type: research
Removal of antibiotics by four microalgae-based systems for swine wastewater treatment under different phytohormone treatment
This study examined the removal of typical antibiotics from simulated swine wastewater. Microalgae-bacteria/fungi symbioses were constructed using Chlorella ellipsoidea, endophytic bacteria (S395-2), and Clonostachys rosea as biomaterials. The growth, photosynthetic performance, and removal of three types of antibiotics (tetracyclines, sulfonamides, and quinolones) induced by four phytohormones were analyzed in each system. The results showed that all four phytohormones effectively improved the tolerance of symbiotic strains against antibiotic stress; strigolactones (GR24) achieved the best performance. At 10-9 M, GR24 ach...
Source: Bioresource Technology - April 7, 2024 Category: Biotechnology Authors: Guojun Guo Zhengfang Wang Chang Lu Wenyan Xu Bei Lu Yongjun Zhao Source Type: research
