Nutraceutical Compounds from Marine Microalgae

Renugadevi, K.; Nachiyar, C. Valli; Nellore, Jayshree; Sunkar, Swetha; Namasivayam, S. Karthick Raja

doi:10.1002/9781119746843.ch12

Cited by 3 publications

(3 citation statements)

References 43 publications

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“…A study performed the qualitative phytochemical screening of the ethanol extract of cashew shell wastes and found the presence of flavonoids, tannins, terpenoids and steroids (17). Similar phytochemical analysis of microalgae revealed the presence of terpenoids, quinones, alkaloids, and carbohydrates (18,19). In this study, the preliminary phytochemical analysis was performed for all the extracts of both Scenedesmus and Chlorococcum sp.…”

Section: Discussionmentioning

confidence: 99%

Biopotential of microalgal extracts as a mosquito larvicide: An eco-friendly approach to control Aedes aegypti

B.¹,

T.²

2023

Biomedicine

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Introduction and Aim: The use of chemical pesticides has raised concerns about their safety and toxicological effects on the environment, people, and other species. Therefore, there is a demand for natural alternatives that are eco- friendly, biodegradable, and target specific. The purpose of this study was to test the larvicidal activity of three microalgae namely, Chlorella sp., Chlorococcum sp., and Scenedesmus sp., against Aedes aegypti. Materials and Methods: The microalgal extracts were prepared with different concentrations after suitable pretreatment and extraction process. The effect of extracts was tested on Aedes aegypti larvae exposed to different concentrations after 24 and 48 hours. Results: The ethanol extract of the Scenedesmus sp. showed the highest larvicidal activity. Whereas the larvicidal activity of methanol extract of the Chlorococcum sp. was the lowest. The phytochemical screening of algal extracts revealed the presence of phytochemicals present in the microalgal extracts namely flavonoids, terpenoids, alkaloids, quinones, saponins, and cellulose Conclusion: This study demonstrated the biopotential of microalgae extracts for the control of the dengue vector, Aedes aegypti. Thus, the use of microalgae can be considered as an alternative to the conventional insecticides as it is more sustainable, non-toxic, and eco-friendly.

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Section: Discussionmentioning

confidence: 99%

Biopotential of microalgal extracts as a mosquito larvicide: An eco-friendly approach to control Aedes aegypti

B.¹,

T.²

2023

Biomedicine

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“…Microalgae are a diverse group of unicellular photosynthetic organisms [ 1 ], which can be found in various aquatic habitats, including freshwater, brackish, and marine environments. They form symbiotic relationships with a wide variety of other organisms, ranging from fungi to zooxanthellae [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity against Four Fish Pathogenic Bacteria of Twelve Microalgae Species Isolated from Lagoons in Western Greece

Androutsopoulou

Makridis

2023

Microorganisms

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Microalgae may produce a range of high-value bioactive substances, making them a promising resource for various applications. In this study, the antibacterial activity of twelve microalgae species isolated from lagoons in western Greece was examined against four fish pathogenic bacteria (Vibrio anguillarum, Aeromonas veronii, Vibrio alginolyticus, and Vibrio harveyi). Two experimental approaches were used to evaluate the inhibitory effect of microalgae on pathogenic bacteria. The first approach used bacteria-free microalgae cultures, whereas the second approach used filter-sterilized supernatant from centrifuged microalgae cultures. The results demonstrated that all microalgae had inhibitory effects against pathogenic bacteria in the first approach, particularly 4 days after inoculation, where Asteromonas gracilis and Tetraselmis sp. (red var., Pappas) exhibited the highest inhibitory activity, reducing bacterial growth by 1 to 3 log units. In the second approach, Tetraselmis sp. (red var., Pappas) showed significant inhibition against V. alginolyticus between 4 and 25 h after inoculation. Moreover, all tested cyanobacteria exhibited inhibitory activity against V. alginolyticus between 21 and 48 h after inoculation. Statistical analysis was performed using the independent samples t-test. These findings suggested that microalgae produce compounds with antibacterial activity, which could be useful in aquaculture.

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“…In recent years, a specific microalgae called N. salinicola has emerged as a promising source of bioactive compounds, including various PUFAs [14]. This microorganism thrives in saline environments and has been found to contain a rich reservoir of valuable lipids with potential health benefits [15]. N. salinicola is a species of diatom, a type of unicellular algae.…”

Section: Introductionmentioning

confidence: 99%

In Silico Assessment of Ameliorative Effects of Polyunsaturated Fatty Acid (Pufas) From Navicula Salinicola as an Inhibitor of Benign Prostate Hyperplasia

FEBRINA,

YULIANTINI,

KURNIA

et al. 2023

Int J App Pharm

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Objective: Benign prostatic hyperplasia (BPH) is a prevalent, non-cancerous condition affecting aging men worldwide. As an alternative approach to conventional treatment options, polyunsaturated fatty acids (PUFAs) have gained attention for their potential therapeutic effects on various health conditions. This study investigated the interaction of PUFAs obtained from Navicula salinicola with the macromolecule associated with BPH, represented by STAT3, that is involved in the androgen signaling pathway in BPH (PDB ID 6NJS), using molecular docking simulations. Methods: The docking simulations revealed the interaction patterns and binding affinities of 14 PUFAs with the amino acid residues of STAT3. The calculated binding energies and inhibition constants provided insights into the potential inhibitory effects of PUFAs on BPH. Results: Results indicated that g-linolenic acid exhibited a strong binding affinity, forming hydrogen bonds with ARG609 and hydrophobic interactions with VAL637 and PRO639, highlighting its potential as a potent inhibitor. Docosahexaenoic acid also showed favorable interactions with ARG609 and hydrophobic residues, suggesting its potential therapeutic relevance. Conclusion: g-Linolenic acid from N. salinicola exhibited a strong molecular interaction with STAT3.

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Nutraceutical Compounds from Marine Microalgae

Cited by 3 publications

References 43 publications

Biopotential of microalgal extracts as a mosquito larvicide: An eco-friendly approach to control Aedes aegypti

Biopotential of microalgal extracts as a mosquito larvicide: An eco-friendly approach to control Aedes aegypti

Antibacterial Activity against Four Fish Pathogenic Bacteria of Twelve Microalgae Species Isolated from Lagoons in Western Greece

In Silico Assessment of Ameliorative Effects of Polyunsaturated Fatty Acid (Pufas) From Navicula Salinicola as an Inhibitor of Benign Prostate Hyperplasia

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