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microalgae, etc ; biomineralization; bioremediation; biosorbents; heavy metals; pH; potassium; uranium; wastewater; China; Show all 10 Subjects
Abstract:
... As a biosorbent, algae are frequently used for the biotreatment or bioremediation of water contaminated by heavy metal or radionuclides. However, it is unclear that whether or not the biomineralization of these metal or radionuclides can be induced by algae in the process of bioremediation and what the mechanism is. In this work, Ankistrodsemus sp. has been used to treat the uranium-contaminated w ...
microalgae, etc ; biotechnology; health promotion; poultry meat; Show all 4 Subjects
Abstract:
... Different types and sources of microalgae are used to feed broiler chickens and laying hens. This review provides a concise update on various impacts of feeding these novel ingredients on physical, chemical, and nutritional attributes of the resultant meat and eggs. Some of the observed effects may be associated with biochemical and molecular mechanisms derived from unique chemical compositions an ...
microalgae, etc ; hydraulic resistance; models; osmosis; porosity; Show all 5 Subjects
Abstract:
... In this study, a transport-based model capable of predicting water flux in microalgae harvesting in forward osmosis (FO) system was developed. Based on Carman-Kozeny resistance model, steady state hydraulic resistance of cake layer comprised of microalgae cells was calculated; by means of control volume approach growth rate of the cake layer was also quantitatively obtained at transient state. Cak ...
microalgae, etc ; biofuels; biomass; energy; humans; lignocellulose; Show all 6 Subjects
Abstract:
... The development and application of bioenergy and biofuels conversion technology can play a significant role for the production of renewable and sustainable energy sources in the future. However, the complexity of bioenergy systems and the limitations of human understanding make it difficult to build models based on experience or theory for accurate predictions. Recent developments in data science ...
microalgae, etc ; adhesion; biofilm; microbiology; polymers; polysaccharides; researchers; Show all 7 Subjects
Abstract:
... Biofilm secreted by microalgae are extracellular polymeric substances (EPSs) composed mainly of polysaccharides, proteins, nucleic acids and lipids. These EPSs immobilize the cells and stabilize biofilm, mediating adhesion towards solid surfaces. The EPSs valorization through industrial exploitations and scientific works is becoming more popular, but the bottleneck of such studies is the lack of c ...
microalgae, etc ; Chlorella vulgaris; biomass; centrifugation; electrocoagulation; energy; Show all 6 Subjects
Abstract:
... The most frequently used method to harvest microalgae on an industrial scale is centrifugation, although this has very high energy costs. To reduce these costs, a continuous electrocoagulation process for harvesting Chlorella vulgaris was developed and tested using a pilot-scale 111 L working volume device consisting of an electrolyser with iron electrodes, aggregation channel and lamellar settler ...
microalgae, etc ; Pseudo-nitzschia; fluorescence; modernization; research; temperature; Show all 6 Subjects
Abstract:
... This article presents the fluorescent characteristics of eight microalgae cultures of the genus Pseudo-nitzschia. We show that the normalized fluorescence temperature curves of the studied Pseudo-nitzschia cultures are very similar. Due to this similarity, the authors obtained the “passport” characteristic, averaged on the measured characteristics, which with high accuracy approximates the fluores ...
microalgae, etc ; biosynthesis; biotechnology; indole acetic acid; industry; metabolites; Show all 6 Subjects
Abstract:
... Optimization of microalgal growth and high-value metabolite production are key steps in microalgal mass culture for the algae industry. An emerging technology is the use of phytohormones, like indole-3-acetic acid (IAA), to promote microalgal growth. This requires an understanding of the biosynthesis of IAA in microalgae-bacteria associations and its function in regulating algal physiology and met ...
microalgae, etc ; automation; functional diversity; photobioreactors; spectroscopy; titration; viruses; Show all 7 Subjects
Abstract:
... Investigation of virus-induced microalgal host lysis and the associated infection dynamics typically requires sampling of infected cultures at multiple timepoints, visually monitoring the state of infected cells, or determining virus titration within the culture media. Such approaches require intensive effort and are prone to low sensitivity and high error rates. Furthermore, natural physiological ...
microalgae, etc ; Chlorella vulgaris; genes; microparticles; microplastics; polystyrenes; wastewater; Show all 7 Subjects
Abstract:
... Aquatic and terrestrial ecosystems are receiving micro- and macro-plastic pollutants alarmingly from various anthropogenic activities. The complications caused by microplastics are largely unexplored and need substantial studies. In the current study, we investigated the repressive effects of negatively and positively charged polystyrene microspheres of two variable sizes (0.05 and 0.5 μm) on func ...
microalgae, etc ; algicides; carbon; sludge; symbiosis; value added; wastewater treatment; Show all 7 Subjects
Abstract:
... In order to further obtain sustainable wastewater treatment technology, in-depth analysis based on algal-bacterial symbiosis, quorum sensing signal molecules and algal-bacterial relationship will lay the foundation for the synergistic algal-bacterial wastewater treatment process. The methods of enhancing algae and bacteria wastewater treatment technology were systematically explored, including pro ...
microalgae, etc ; biofilm; electricity generation; paddies; voltammetry; wastewater; wastewater treatment; Show all 7 Subjects
Abstract:
... This paper illustrates the potential of unicellular microalgae in electricity production in concurrence with wastewater treatment. Our study focused on the isolation of microalgal strains from various aquatic sources. Cyclic voltammetry was performed to detect the electrogenic activity and out of 18 algal isolates, six algal strains were screened. Coelastrella sp. from the paddy field revealed the ...
microalgae, etc ; biodiesel; biomass; biorefining; metabolism; metabolites; research; wastewater treatment; Show all 8 Subjects
Abstract:
... Studies on the microalgal–bacterial interactions have highlighted the potential role of bacteria in optimizing microalgal biorefineries for the integrated production of metabolites and biomass, biodiesel, and wastewater treatment. Although the bacterial mechanisms responsible for the positive effects on microalgal growth and metabolism have been defined in many instances, there is a lack of a unif ...
microalgae, etc ; compressibility; energy; hydrodynamics; models; polysaccharides; quantitative analysis; vibration; Show all 8 Subjects
Abstract:
... Although transmembrane pressure (TMP) has proven to be a significant factor in the separation of microalgae by the vibration membrane process, there is a lack of systematic research on this factor. This study introduced a multi-angle insight by analyzing hydrodynamic interaction acting on algae, compressibility of the cake layer, and quantitative evaluation of the membrane fouling performance to a ...
microalgae, etc ; carbon dioxide; citric acid; enrofloxacin; mineralization; moieties; photocatalysis; piperazine; Show all 8 Subjects
Abstract:
... The coupling of photocatalytic and algal processes has been used for the removal of widespread antibiotics. The removal capacities of the individual and the combined system against enrofloxacin were tested and compared in this work. Due to the low tolerance of the algae to enrofloxacin, the target compound was barely degraded during the individual algal treatment. In the individual photocatalytic ...
microalgae, etc ; Miozoa; Permian period; biosynthesis; conifers; diagenesis; geochemistry; methylation; sterols; Show all 9 Subjects
Abstract:
... Steroids with alkyl groups at C-2 and C-3 are not known yet in any living organism, while 4-methylsteranes are previously thought specific to 4-methylsteroids bio-synthesized by limited types of organisms, such as dinoflagellates, microalgae, and certain bacteria. Here we investigate the occurrence of C₃₀ 2α-, 3β-, 4α-methyl-24-ethylcholestanes, C₃₁ 3β,24-diethylcholestanes, and 3,4-dimethyl-24-et ...
microalgae, etc ; Chlamydomonas; aquatic environment; biofilm; excretion; food webs; microplastics; sediments; Show all 8 Subjects
Abstract:
... Microplastics (MPs) are globally ubiquitous in sediments and surface waters. Interactions between biota and MPs are complex and influence their fate and effects in the environment. Once MPs enter aquatic systems, they are colonized by biofilms that may form from the excretion of extracellular polymeric substances (EPS) from microalgae. Biofilm accumulation may change the density of the MPs, contri ...
microalgae, etc ; Botryococcus braunii; algology; biomass; dewatering; extracellular matrix; lipids; solvents; Show all 8 Subjects
Abstract:
... In situ extraction or “milking” of microalgae is a promising approach to reduce downstream costs in order to produce low-value substances such as lipids from microalgae in an economical way. Due to its ability to secrete high amounts of long-chain hydrocarbons to an extracellular matrix, the green microalga Botryococcus braunii is suitable for the process of in situ extraction as the cost intensiv ...
microalgae, etc ; algae culture; biomass; dewatering; economic sustainability; energy; microfiltration; research; Show all 8 Subjects
Abstract:
... Dewatering constitutes a major drawback in terms of cost and energy required to concentrate a highly diluted microalgal culture. This has hampered the economic viability of microalgal products. To this end, several technologies have been developed for harvesting microalgal biomass. Membrane technology emerges as one of the preferred harvesting and dewatering technologies in terms of low cost, simp ...
microalgae, etc ; bacteria; biosynthesis; biotechnology; ecotoxicology; genomics; metabolites; proteomics; viruses; yeasts; Show all 10 Subjects
Abstract:
... Global challenges require novel solutions. Microbial nanotechnology has the potential to offer an eco-friendly approach for advancing the pharmaceutical, food, environment and agriculture sectors. This review summarizes recent developments in the synthesis and applications of bionanomaterials created by intracellular and/or extracellular biosynthesis processes involving various microorganisms (e.g ...