Metal concentrations in three species of Fucus L. on the Murmansk coast of the Barents Sea

Obluchinskaya, E. D.; Zakharova, L.V.

doi:10.1016/j.polar.2021.100646

Cited by 5 publications

(7 citation statements)

References 49 publications

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“…Alga samples were collected in the coastal zone of the Artic, including the Irminger Sea, Norwegian Sea, Barents Sea, and White Sea ( Figure 1 ), according to standard protocols [ 33 , 78 ]. Alga samples were taken at low tide, at a 0.6–1.0 m depth, in the fertile and sterile phases in 2019.…”

Section: Methodsmentioning

confidence: 99%

“…The Metal Pollution Index (MPI) [ 78 , 88 ] is a mathematical model that summarizes the values for all toxic metals, calculated as the mean of values for the metals considered and expressed as follows: MPI = ( M 1 × M 2 × … × M n ) 1 /n where M n is the concentration of the metal, n, in the sample in milligrams per kilogram of DW.…”

Section: Methodsmentioning

confidence: 99%

Section: Metal Pollution Indexmentioning

confidence: 99%

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The Biochemical Composition and Antioxidant Properties of Fucus vesiculosus from the Arctic Region

et al. 2022

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Fucus vesiculosus is one of the most prominent brown algae in the shallow waters of the seas of the Arctic region (Barents (BS), White (WS), Norwegian (NS), and Irminger (IS)). The aim of this study was to determine the biochemical composition of F. vesiculosus from the Arctic at different reproductive phases, and to evaluate the antioxidant properties of F. vesiculosus extracts. The amounts of monosaccharides, phlorotannins, flavonoids, and ash and the mineral composition significantly varied in the algae. A strong correlation was established between monosaccharide, phlorotannin, and flavonoid accumulation and water salinity (Pearson’s correlation coefficients r = −0.58, 0.83, and 0.44, respectively; p < 0.05). We noted a negative correlation between the antioxidant activity and the amount of the structural monosaccharides of fucoidan (r = −0.64). A positive correlation of phlorotannins and flavonoids with antioxidant power was confirmed for all samples. The ash accumulation was relatively lower in the sterile phase for the algae from the BS and WS. The correlation between the Metal Pollution Index (MPI) and the reproductive phases was medium with high fluctuation. Meanwhile, the MPI strongly correlated with the salinity and sampling site. The gradient of the MPI values across the sea was in the following ranking order: BS < WS < NS < IS. Taken together, and based on our data on the elemental contents of F. vesiculosus, we believe that this alga does not accumulate toxic doses of elements. Therefore, the Arctic F. vesiculosus could be safely used in food and drug development as a source of active biochemical compounds and as a source of dietary elements to cover the daily nutritional requirements of humans.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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The Biochemical Composition and Antioxidant Properties of Fucus vesiculosus from the Arctic Region

et al. 2022

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“…F. distichus from the WS showed higher metal concentrations when compared to seaweeds collected in the NS and the BS ( Table 3 ). Average concentrations of Cu, Cd, and Pb in fucus from BS from April 2010–2012, 2014, and 2018 were varied, such as 4–18 µg/g DW, 0.35–0.98, and 0.2–1.3 [ 27 ]. A comparison of seaweeds collected by us in the Arctic with F. distichus from the WS collected near the village of Rabocheostrovsk [ 73 ] showed that F. distichus had similar concentrations of Cu, Fe, and Zn but lower concentrations of Cd, Cr, Ni, and Pb.…”

Section: Resultsmentioning

confidence: 99%

“…Samples of F. distichus were harvested in the coastal zones (low tide at 0.6–1.0 m depth) of the Baffin Sea (BfS), Norwegian Sea (NS), White Sea (WS), and Barents Sea (BS) ( Figure 1 ) in summer 2019. The details of the collection procedure were described in [ 26 , 27 ].…”

Section: Methodsmentioning

confidence: 99%

Arctic Edible Brown Alga Fucus distichus L.: Biochemical Composition, Antiradical Potential and Human Health Risk

Obluchinskaya,

Pozharitskaya,

Gorshenina

et al. 2023

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Fucus distichus L. is the dominant canopy-forming macroalga in the rocky intertidal areas of the Arctic and Subarctic. In the present study, the impact of the geographic location of F. distichus collected in the Baffin Sea (BfS), Norwegian Sea (NS), White Sea (WS), and Barents Sea (BS) on the variations in biochemical composition, antiradical properties, and health risk was evaluated. The accumulation of main carbohydrates (fucoidan, mannitol, and alginic acid) varied from 335 mg/g dry weight (DW) in NS to 445 mg/g DW in BS. The highest level of the sum of polyphenols and flavonoids was found in samples of F. distichus from WS and was located in the following ranking order: BS < BfS < NS < WS. The 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity of seaweed is correlated with its phenolic content. It is notable that in most Arctic F. distichus samples, Cd, Cr, Pb, and Ni were not detected or their concentrations were below the limit of quantification. According to calculated targeted hazard quotient and hazard index values, all studied samples of Arctic F. distichus are safe for daily consumption as they do not pose a carcinogenic risk to the health of adults or children. The results of this study support the rationale for using Arctic F. distichus as a rich source of polysaccharides, polyphenols, and flavonoids with important antiradical activity. We believe that our data will help to effectively use the potential of F. distichus and expand the use of this algae as a promising and safe raw material for the food and pharmaceutical industries.

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Biochemical composition, antiradical potential and human health risk of the Arctic edible brown seaweed Fucus spiralis L

et al. 2022

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Metal concentrations in three species of Fucus L. on the Murmansk coast of the Barents Sea

Cited by 5 publications

References 49 publications

The Biochemical Composition and Antioxidant Properties of Fucus vesiculosus from the Arctic Region

The Biochemical Composition and Antioxidant Properties of Fucus vesiculosus from the Arctic Region

Arctic Edible Brown Alga Fucus distichus L.: Biochemical Composition, Antiradical Potential and Human Health Risk

Biochemical composition, antiradical potential and human health risk of the Arctic edible brown seaweed Fucus spiralis L

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