Potential applications of nuisance microalgae blooms

Kim, Jang K.; Kottuparambil, Sreejith; Moh, Sang Hyun; Lee, Taek Kyun; Kim, Youn-Jung; Rhee, Jae-Sung; Choi, Eun‐Mi; Kim, Byung Hoon; Yu, Yong Ju; Yarish, Charles; Han, Taejun

doi:10.1007/s10811-014-0410-7

Cited by 29 publications

(16 citation statements)

References 120 publications

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“…Integrated Multi-Trophic Aquaculture (IMTA) combines the aquaculture of food (for example, of fish) with that of extraction (for example, algae) to create a more balanced ecosystem [31]. However, caution should be exercised, since coastal waters containing high amounts of nutrients may favor the emergence of potentially harmful, invasive, or opportunistic algae, which may have negative consequences for the coastal zone [32,33,34]. There is another similar concept that excludes the feeding concept, called nutrient bioextraction, which can be applied even to urbanized estuaries, where excess nutrients are currently a problem.…”

Section: Algae Aquaculturementioning

confidence: 99%

“…However, using algae as a fuel has several advantages. One of them is that a single algal biomass can be used to produce several different kinds of renewable biofuels depending on the treatment applied (anaerobic digestion and biodiesel derived from algal oil, among others) [32].…”

Section: General Current Seaweed Industrial Applicationsmentioning

confidence: 99%

“…These compounds are water-soluble carbohydrates mainly used to increase aqueous solutions viscosity, to produce different types of gels, to form water-soluble films, and to stabilize some products. Other functional ingredients present in algae are carotenoids (used as food colorants, feed supplements, and nutraceuticals), lipids, proteins, polysaccharides, and phenolic compounds [32].…”

Section: General Current Seaweed Industrial Applicationsmentioning

confidence: 99%

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The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value

et al. 2019

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Two thirds of the world is covered by oceans, whose upper layer is inhabited by algae. This means that there is a large extension to obtain these photoautotrophic organisms. Algae have undergone a boom in recent years, with consequent discoveries and advances in this field. Algae are not only of high ecological value but also of great economic importance. Possible applications of algae are very diverse and include anti-biofilm activity, production of biofuels, bioremediation, as fertilizer, as fish feed, as food or food ingredients, in pharmacology (since they show antioxidant or contraceptive activities), in cosmeceutical formulation, and in such other applications as filters or for obtaining minerals. In this context, algae as food can be of help to maintain or even improve human health, and there is a growing interest in new products called functional foods, which can promote such a healthy state. Therefore, in this search, one of the main areas of research is the extraction and characterization of new natural ingredients with biological activity (e.g., prebiotic and antioxidant) that can contribute to consumers’ well-being. The present review shows the results of a bibliographic survey on the chemical composition of macroalgae, together with a critical discussion about their potential as natural sources of new functional ingredients.

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Section: Algae Aquaculturementioning

confidence: 99%

Section: General Current Seaweed Industrial Applicationsmentioning

confidence: 99%

Section: General Current Seaweed Industrial Applicationsmentioning

confidence: 99%

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The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value

et al. 2019

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“…In other words, promising strains must be optimized for local climatic conditions, and media optimized for those strains [ 190 ]. Bloom diatoms, for example, may be particularly good oil sources [ 191 ], and perhaps invasive diatoms [ 192 ] would be worth considering. There are several nonexclusive possibilities for finding such species/strains: (a) strain selection, (b) synthetic biology and (c) exploring biodiversity.…”

Section: Diatom Chemobiodiversitymentioning

confidence: 99%

Diatom Milking: A Review and New Approaches

et al. 2015

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The rise of human populations and the growth of cities contribute to the depletion of natural resources, increase their cost, and create potential climatic changes. To overcome difficulties in supplying populations and reducing the resource cost, a search for alternative pharmaceutical, nanotechnology, and energy sources has begun. Among the alternative sources, microalgae are the most promising because they use carbon dioxide (CO2) to produce biomass and/or valuable compounds. Once produced, the biomass is ordinarily harvested and processed (downstream program). Drying, grinding, and extraction steps are destructive to the microalgal biomass that then needs to be renewed. The extraction and purification processes generate organic wastes and require substantial energy inputs. Altogether, it is urgent to develop alternative downstream processes. Among the possibilities, milking invokes the concept that the extraction should not kill the algal cells. Therefore, it does not require growing the algae anew. In this review, we discuss research on milking of diatoms. The main themes are (a) development of alternative methods to extract and harvest high added value compounds; (b) design of photobioreactors; (c) biodiversity and (d) stress physiology, illustrated with original results dealing with oleaginous diatoms.

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“…The toxicity of species of genus Limnoraphis, between others the synthesis of the liver toxin microcystin seems to depend on the strain and environmental triggers [33,61], and therefore the evaluation of biomass for toxins has to be determined [62]. In general, the potential applications of nuisance microalgae blooms is still largely unconsidered and unexplored [63].…”

Section: Discussionmentioning

confidence: 99%

Solving Nuisance Cyanobacteria Eutrophication Through Biotechnology

Orfanidis¹,

Stamatis²,

Parasyri

et al. 2019

Applied Sciences

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Management of nutrient inputs and usage of nuisance biomass as feedstock for bioenergy may be the solution of coastal lagoons eutrophication. We studied the species composition, photosynthetic pigments (Chl-a and Chl-c) and performance (OJIP-kinetics and JIP-test parameters), biochemistry (lipids and carbohydrates composition), and hydrogen production potential of Limnoraphis (Lyngbya) nuisance biomass collected from Lafri lagoon (1.24 km2) in Greece. The results showed that the removal of algal biomass from Lafri lagoon before its sedimentation, characterized by low Fν/Fm (0.42) and PItotal (2.67) values, and transfer of this in a simple, closed bioreactor, has the potential to produce hydrogen (H2), a renewable CO2-neutral energy that can directly be converted into electricity. The free carbohydrates of the lagoon water and that from the algal cells (42g glucose analogs per m3) could be also transferred to alcohols (biofuels), while the rest of the biomass could be used as organic fertilizer. The total lipid content (2.51%) of dry biomass composed primarily by palmitic acid was low. However, the presence of eicosapentaenoic (3.5%), and docosahexaenoic (1.7%), polyunsaturated fatty acids is worth mentioning. By harvesting and conversion of this coastal lagoon nuisance algal biomass to energy or other products, one could improve its water quality and, therefore, biodiversity and fish production; that is a sustainable solution of eutrophication necessary for the ongoing climatic change.

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Potential applications of nuisance microalgae blooms

Cited by 29 publications

References 120 publications

The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value

The Potential of Seaweeds as a Source of Functional Ingredients of Prebiotic and Antioxidant Value

Diatom Milking: A Review and New Approaches

Solving Nuisance Cyanobacteria Eutrophication Through Biotechnology

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