Facets of diatom biology and their potential applications

Mal, Navonil; Srivastava, Kanishka; Sharma, Yagya D.; Singh, Meenakshi; Rao, Kummara Madhusudana; Enamala, Manoj Kumar; Chandrasekhar, K.; Chavali, Murthy

doi:10.1007/s13399-020-01155-5

Cited by 11 publications

(5 citation statements)

References 109 publications

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“…The chemical composition of microalgae is greatly variable according to key environmental factors [ 25 , 138 ], such as water temperature [ 139 ], salinity [ 140 ], light [ 141 ] and nutrient availability [ 25 ]. In addition, the production technologies applied largely influence production of bioactive compounds [ 24 ], while, in outdoor conditions, the environmental influences cannot be controlled because they vary with the seasons [ 142 ].…”

Section: Innovative Cultivation System and Extraction Methods To Meet...mentioning

confidence: 99%

Bioactive Molecules from Marine Diatoms and Their Value for the Nutraceutical Industry

et al. 2023

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The search for novel sources of nutrients is among the basic goals for achievement of sustainable progress. In this context, microalgae are relevant organisms, being rich in high-value compounds and able to grow in open ponds or photobioreactors, thus enabling profitable exploitation of aquatic resources. Microalgae, a huge taxon containing photosynthetic microorganisms living in freshwater, as well as in brackish and marine waters, typically unicellular and eukaryotic, include green algae (Chlorophyceae), red algae (Rhodophyceae), brown algae (Phaeophyceae) and diatoms (Bacillariophyceae). In recent decades, diatoms have been considered the most sustainable sources of nutrients for humans with respect to other microalgae. This review focuses on studies exploring their bio-pharmacological activities when relevant for human disease prevention and/or treatment. In addition, we considered diatoms and their extracts (or purified compounds) when relevant for specific nutraceutical applications.

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Section: Innovative Cultivation System and Extraction Methods To Meet...mentioning

confidence: 99%

Bioactive Molecules from Marine Diatoms and Their Value for the Nutraceutical Industry

et al. 2023

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“…Fucoxanthin exhibits health-promoting effects attributed to its potent antioxidant properties [76]. Additionally, it demonstrates anti-obesity, anti-diabetic, anti-cancer, anti-angiogenic, anti-inflammatory, anti-metastatic, and anti-Alzheimer's disease activity [18,77]. Due to its diverse physiological activities, fucoxanthin has found extensive applications in the food, pharmaceutical, and cosmetic industries.…”

Section: Carotenoid Content Of Strain Oaosh22mentioning

confidence: 99%

“…Diatoms are commonly known to possess a significant concentration of various fatty acids, including myristic acid (C14:0), palmitic acid (C16:0), palmitoleic acid (C16:1), stearic acid (C18:0), oleic acid (C18:1), and EPA (C20:5ω3) [13,89]. These fatty acids play a significant role in various industries, including food, pharmaceuticals, cosmeceuticals, aquaculture, and biofuel [77]. In particular, PUFAs, represented by EPA and docosahexaenoic acid (DHA), have garnered significant interest.…”

Section: Fatty Acids Composition Of Strain Oaosh22mentioning

confidence: 99%

“…Consequently, it is necessary to obtain these PUFAs via dietary intake [91]. EPA offers a range of nutritional and health advantages, including its anti-inflammatory, anti-microbial, anti-cancer, vision and cardiovascular-protective, anti-Parkinsonian syndrome, and anti-Alzheimer's disease effects [18,77].…”

Section: Fatty Acids Composition Of Strain Oaosh22mentioning

confidence: 99%

“…Additionally, it has extensive applications in the beauty industry as a fragrance, surfactant, detergent, and emulsifier [96]. Palmitoleic acid has been documented to exhibit antibacterial properties [77], and has recently been suggested as a potential food ingredient for managing obesity [97].…”

Section: Fatty Acids Composition Of Strain Oaosh22mentioning

confidence: 99%

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Description and Characterization of the Odontella aurita OAOSH22, a Marine Diatom Rich in Eicosapentaenoic Acid and Fucoxanthin, Isolated from Osan Harbor, Korea

An,

Cho,

Kim

et al. 2023

Marine Drugs

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Third-generation biomass production utilizing microalgae exhibits sustainable and environmentally friendly attributes, along with significant potential as a source of physiologically active compounds. However, the process of screening and localizing strains that are capable of producing high-value-added substances necessitates a significant amount of effort. In the present study, we have successfully isolated the indigenous marine diatom Odontella aurita OAOSH22 from the east coast of Korea. Afterwards, comprehensive analysis was conducted on its morphological, molecular, and biochemical characteristics. In addition, a series of experiments was conducted to analyze the effects of various environmental factors that should be considered during cultivation, such as water temperature, salinity, irradiance, and nutrients (particularly nitrate, silicate, phosphate, and iron). The morphological characteristics of the isolate were observed using optical and electron microscopes, and it exhibited features typical of O. aurita. Additionally, the molecular phylogenetic inference derived from the sequence of the small-subunit 18S rDNA confirmed the classification of the microalgal strain as O. aurita. This isolate has been confirmed to contain 7.1 mg g−1 dry cell weight (DCW) of fucoxanthin, a powerful antioxidant substance. In addition, this isolate contains 11.1 mg g−1 DCW of eicosapentaenoic acid (EPA), which is one of the nutritionally essential polyunsaturated fatty acids. Therefore, this indigenous isolate exhibits significant potential as a valuable source of bioactive substances for various bio-industrial applications.

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Algae Mediated Pesticides Bioremediation: Mechanisms, Approaches, Limitations, and Prospects for Future Research

Singh

Unadkat

Parikh

et al. 2022

Pesticides Bioremediation

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Facets of diatom biology and their potential applications

Cited by 11 publications

References 109 publications

Bioactive Molecules from Marine Diatoms and Their Value for the Nutraceutical Industry

Bioactive Molecules from Marine Diatoms and Their Value for the Nutraceutical Industry

Description and Characterization of the Odontella aurita OAOSH22, a Marine Diatom Rich in Eicosapentaenoic Acid and Fucoxanthin, Isolated from Osan Harbor, Korea

Algae Mediated Pesticides Bioremediation: Mechanisms, Approaches, Limitations, and Prospects for Future Research

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