Antimicrobial Activities of Some Marine Macroalgae Species from Iskenderun Bay

Sayın, Selin

doi:10.24925/turjaf.v9i4.792-796.4207

Cited by 3 publications

(1 citation statement)

References 35 publications

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“…Similarly to most species studied, L. viscida aqueous extracts inhibit B. subtilis growth; however, L. viscida is one of the three species that inhibit S. cerevisiae growth as well. These results may indicate that L. viscida is worth further study within the scope of microbiology, as this seaweed has previously shown antimicrobial activity against bacteria and fungi [104]. To this day, and considering the currently studied species, L. viscida remains one of the seaweed species severely lacking research focused on its biotechnological potential.…”

Section: Species-specific Notesmentioning

confidence: 94%

Antioxidant and Antimicrobial Properties of Selected Red Seaweeds from Central Portugal

et al. 2022

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Throughout the ages, macroalgae have provided humankind with elements beneficial to human health, and often with bioactive abilities. Yet, while today we fully acknowledge such potential, especially that of the most widely known species, an even greater number of species remain unaknowledged. This holds particularly true for the highly diverse phylum Rhodophyta (red seaweeds) and, therefore, the present study aims to unveil the antioxidant and the antimicrobial potential of twelve red seaweed species collected in central Portugal. Results obtained from the antioxidant assays ABTS and TPC highlighted the high scavenging capacity of the coralline algae Corallina officinalis, Ellisolandia elongata and Amphiroa rigida, and the high phenolic content of Porphyra umbilicalis, whereas the antimicrobial analyses through MIC determination emphasized the activities of Sphaerococcus coronopifolius and Mesophyllum lichenoides against, respectively, Bacillus subtilis and Saccharomyces cerevisiae. This study raised awareness of the bioactive potential waiting to be discovered regarding less known Rhodophyta species, such as Amphiroa rigida and Mesophyllum lichenoides. Therefore, we believe this study provides extra steps in pinpointing Rhodophyta species with bioactive potential, encouraging further studies tailored toward a biotechnological perspective, and, ultimately, influencing current perspectives regarding the exploration of seaweeds.

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Section: Species-specific Notesmentioning

confidence: 94%

Antioxidant and Antimicrobial Properties of Selected Red Seaweeds from Central Portugal

et al. 2022

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Nanofiber Applications From Hijiki Macroalgae: Antibacterial and Cytotoxicity Properties in Biocompatible Polymers

Gümüş

2024

Biopolymers

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One of the current biotechnological applications is nanofiber applications made from algae using the electrospinning technique. Nanofibers containing poly‐caprolactone (PCL) extracted from the brown seaweed Hijiki (Sargassum fusiforme) were prepared using electrospinning technique. Water extraction was performed to preserve the integrity of Hijiki components, ensuring their efficacy in subsequent electrospinning and characterization. The morphology and chemical composition of the nanofibers were characterized using field emission scanning electron microscopy (FE‐SEM), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT‐IR) analyses. Hijiki was found to combine well with electrospun biocompatible polymers and effectively provide the common properties of these materials. The cytotoxicity of algae‐doped PCL nanofibers was examined in vitro using liver cancer and liver healthy cell lines (HepG2 and The‐2). Among hepatic tumor cell lines, the HepG2 cell line has been preferred due to its wide range of scientific applications. Although the nanofibers caused a 28% decrease in liver cancer cell lines viability (HepG2), the decrease in healthy liver cell viability (The‐2) was 12%. Algae‐doped PCL nanofiber applied to bacteria showed antibacterial effect. Based on the findings, Hijiki macroalgae nanofibers show great promise for tissue regeneration and band‐aid applications in the medical industry.

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Primary Composition and Pigments of 11 Red Seaweed Species from the Center of Portugal

Freitas

Inácio

Martins

et al. 2022

JMSE

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Macroalgae have been regarded as a natural food source since ancient times, their nutritional value being not only proven by recent studies, but also triggering further in-depth research efforts on the matter. The present study aims to provide an insight into the nutritional potential of selected red seaweed species collected in central Portugal by specifically comparing the moist yield and ash content, crude protein, total lipids, carbohydrates and pigment content between species and, ultimately, finding out if there are differences between taxa. The results obtained highlighted the most nutritionally appealing species, namely, Plocamium cartilagineum with respect to protein content (23.18% dw) and Sphaerocococcus coronopifolius with respect to carbohydrate content (40.23% dw), while none of the species studied showed a lipid content higher than 1.80% dw. Regarding pigment content, the highest concentrations of phycoerythrin, carotenoid and chlorophyll a were obtained, respectively, from P. cartilagineum (0.09 mg.mL−1), Porphyra umbilicalis (1.88 µg.g−1 fw) and Jania rubens (38.41 µg.mL−1). We concluded that there are significant differences between the species studied regarding their nutritional profile, with a marked difference between Corallinales and all other species not belonging to this order; regarding pigment content, this variation between orders was not observed. Nevertheless, all the studied species may act as promising complements in a human healthy diet.

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Antimicrobial Activities of Some Marine Macroalgae Species from Iskenderun Bay

Cited by 3 publications

References 35 publications

Antioxidant and Antimicrobial Properties of Selected Red Seaweeds from Central Portugal

Antioxidant and Antimicrobial Properties of Selected Red Seaweeds from Central Portugal

Nanofiber Applications From Hijiki Macroalgae: Antibacterial and Cytotoxicity Properties in Biocompatible Polymers

Primary Composition and Pigments of 11 Red Seaweed Species from the Center of Portugal

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