Co-culture for lipid production: Advances and challenges

Magdouli, Sara; Brar, Satinder Kaur; Blais, Jean-François

doi:10.1016/j.biombioe.2016.06.003

Cited by 88 publications

(32 citation statements)

References 125 publications

(155 reference statements)

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“…Nowadays, co-culture of microalgae with yeast or bacteria has shown potential to enhance the phycoremediation and biomass yield [26]. In this cultivation method, microalgae synthesize higher contents of exopolysaccharides to support the growth in hostile conditions [38].…”

Section: Co-culture Methodsmentioning

confidence: 99%

Microalgae Water Bioremediation: Trends and Hot Topics

et al. 2020

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The need to reduce costs associated with the production of microalgae biomass has encouraged the coupling of process with wastewater treatment. Emerging pollutants in municipal, industrial, and agricultural wastewaters, ranging from pharmaceuticals to metals, endanger public health and natural resources. The use of microalgae has, in fact, been shown to be an efficient method in water-treatment processes and presents several advantages, such as carbon sequestration, and an opportunity to develop innovative bioproducts with applications to several industries. Using a bibliometric analysis software, SciMAT, a mapping of the research field was performed, analyzing the articles produced between 1981 and 2018, aiming to identifying the hot topics and trends studied until now. The application of microalgae on water bioremediation is an evolving research field that currently focuses on developing efficient and cost-effective treatments methods that also enable the production of add-value products, leading to a blue and circular economy.

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Section: Co-culture Methodsmentioning

confidence: 99%

Microalgae Water Bioremediation: Trends and Hot Topics

et al. 2020

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“…The interaction between bacteria and algae is mostly species‐specific, and it can be mutually beneficial to each other and increase the productivity of certain biomass such as lipids. [ 105,106 ] Although the mechanism of bacterial flocculation is not yet clear, it is believed that charged functional groups in bacteria aggregate algal cells by neutralizing the charge and electrostatic patch (Figure 3B). In the green alga C. vulgaris , a 94% flocculating activity was observed in the culture containing various bacteria compared to 2% self‐flocculation in the axenic culture.…”

Section: Harvesting Microalgaementioning

confidence: 99%

Harvesting Microalgae for Food and Energy Products

et al. 2020

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their size and physiology, and they belong to many different phylogenetic groups that are distinct from plants. [1] Microalgae are the subset of algae that are unicellular and range in size from several to a few hundred micrometers. Most microalgae diversity resides in freshwater or marine systems. Microalgae can grow in extreme environments such as deserts and polar regions, [2] and often show greater efficiency in synthesizing bioproducts compared to land plants. [3] Moreover, algae produce oxygen and sequester the greenhouse gas carbon dioxide at globally relevant scales, [4] and account for half of the oceans' net primary production. [5] They grow fast and can produce high-value biomass. [6] While microalgae are phylogenetically diverse, most biotechnology interest applies to the green algae (Chlorophyceae), diatoms (Bacillariophyceae), blue-green algae (Cyanobacteria), and Eustigmatophyceae (including Nannochloropsis), which are well-characterized species for valuable bioproducts. 1.2. Microalgae as Sustainable Biofactories Microalgae have the potential to produce large amounts of valuable products sustainably, since they do not require arable land and can be produced using seawater, wastewater, or brackish water. Reduction in environmental impacts of fuels and food products will be important for the mitigation of climate change. [7] Microalgae are also being used in powerplants as a means to capture carbon dioxide and sequester it into biomass, which may provide opportunities for large-scale production of carbon-neutral energy and products. [8] Vaccines and other pharmaceutical proteins are among the most high-value products that microalgae are used to produce, as well as effectively store and orally administer those products. [9] Other high-value products derived from microalgae include cosmetics, [10] food supplements and additives, [11] cooking oils, [12] and animal feed. [13,14] These have been developed as potentially more sustainable alternatives to synthetic or animal-derived products. Microalgae also provide feedstocks for biodiesel [15] and ethanol, [16] contributing to renewable and sustainable energy resource developments that may displace fossil fuels and food-derived fuels. Genetic and synthetic biology approaches can accelerate the development of microalgae strains capable of producing novel specialty products [17-19] or producing conventional products with improved lipid content, [20] growth rate, and production efficiency. [21,22] Unlike field-grown transgenic crops, multi ple Microalgae are promising biological factories for diverse natural products. Microalgae tout high productivity, and their biomass has value in industrial products ranging from biofuels, feedstocks, food additives, cosmetics, pharmaceuticals, and as alternatives to synthetic or animal-derived products. However, harvesting microalgae to extract bioproducts is challenging given their small size and suspension in liquid growth media. In response, technologic developments have relied upon mechanical, chemical, thermal, and b...

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“…Artificial symbiosis of oleaginous microalgae with other microalgae, bacteria, yeast, and filamentous fungi has gained interest because of enhanced lipid production obtained as well as highly efficient bioflocculation (Magdouli et al, 2016). In addition, co-culturing also offers several other applications including production of extracelluar polymeric substances (EPS), poly hydroxy alkanoates (PHA), organic acids, ethanol, biohydrogen, and electricity (Magdouli et al, 2016). A review by Magdouli et al (2016) briefly described about the advantages and disadvantages of co-culturing of oil producing microbes.…”

Section: Co-culturing Approaches: the Emergence Of Artificial Symbiosmentioning

confidence: 99%

Symbiotic Associations: Key Factors That Determine Physiology and Lipid Accumulation in Oleaginous Microorganisms

et al. 2020

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Symbiosis naturally provides an opportunity for microorganisms to live together by mutual or one-way benefit. In symbiotic relationships, the microorganisms usually overcome the limitations of being free-living. Understanding the symbiotic relationships of oleaginous microorganisms provides potential route for the sustainable production of microbial-based alternative fuels. So far, several studies have been conducted in oleaginous microorganisms for the production of alternative fuels. However, some oleaginous microorganisms require high quantity of nutrients for their growth, and high level of energy and chemicals for harvest and separation of lipid bodies. Symbiotic associations can successfully be applied to address these issues. Of symbiotic associations, lichens and selective species of oleaginous endosymbiotic mucoromycotina have received substantial interest as better models to study the evolutionary relationships as well as single-cell oil production. Construction of artificial lichen system composed of cyanobacteria and oleaginous yeast has been achieved for sustainable production of lipids with minimum energy demand. Recently, endosymbiotic mucoromycotina species have been recognized as potential sources for biofuels. Studies found that endohyphal bacterium influences lipid profiling in endosymbiotic mucoromycotina species. Studies on the genetic factors related to oleaginous characteristics of endosymbiotic mucoromycotina species are scarce. In this regard, this review summarizes the different forms of symbiotic associations of oleaginous microorganisms and how symbiotic relationships are impacting the lipid formation in microorganisms. Further, the review also highlights the importance of evolutionary relationships and benefits of co-culturing (artificial symbiosis) approaches for sustainable production of biofuels.

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Co-culture for lipid production: Advances and challenges

Cited by 88 publications

References 125 publications

Microalgae Water Bioremediation: Trends and Hot Topics

Microalgae Water Bioremediation: Trends and Hot Topics

Harvesting Microalgae for Food and Energy Products

Symbiotic Associations: Key Factors That Determine Physiology and Lipid Accumulation in Oleaginous Microorganisms

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