Seasonal Changes in the Chemical Composition of the Beadlet Anemones (Actinia equina) from Mersin Bay, Northeastern Mediterranean coast of Turkey

Yatkin, Kemal; Ayas, Deniz; Köşker, Ali Rıza; Durmuş, Mustafa; Uçar, Yılmaz

doi:10.28978/nesciences.328853

Cited by 3 publications

(4 citation statements)

References 21 publications

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“…In particular, cis - 5,8,11,14,17 -eicosapentaenoic acid (C20:5(n-3)) was the most abundant, but significant levels of other acids were determined also and their contents followed the order: cis-4,7,10,13,16,19 -docosahexaenoic acid (C22:6(n-3)) > arachidonic acid (C20:4(n-6)) > cis-8,11,14 -eicosatrienoic acid (C20:3(n-6)) > linoleic acid (C18:2(n-6)) > cis-11,14 -eicosadienoic acid (C20:2(n-6)). Almost all the data are in agreement with previous determinations on AE an some other actiniaria species [ 27 , 28 , 30 ]. Little amount variations could be related to species, seasonal change in chemical composition and different sea ecosystems.…”

Section: Resultssupporting

confidence: 92%

“…The main SFAs of AE were palmitic (C16:0) and stearic (C18:0) acids and this is in accordance with other precedent determinations for AE [27] and Actinia tenebrosa [28]. Very low content were detected for lauric (C12:0) acids, and this data is in accordance with the levels detected in AE in more recent time [30]. For the first time we reported the content of butyric (C4:0), caproic (C6:0), caprylic (C8:0), capric (C10:0), undecanoic (C11:0) and tricosylic (C23:0) acids that were detected at low content and for which we have not any reference data for comparison.…”

Section: Fatty Acidssupporting

confidence: 91%

“…Among MUFAs, highest levels were detected for oleic (C18:1(n-9)) and vaccenic (C18:1(n-7)) acids, and these values together with le appreciable amount of palmitoleic (C16:1(n-7)) and cis-11 -eicosenic (C20:1(n-9) acids are in accordance with precedent study by Stefanov et al [ 27 ]. The differences observed for these MUFAs by Yatkin et al [ 30 ] probably arise from differences in food chain in different sea ecosystems.…”

Section: Resultsmentioning

confidence: 98%

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Properties of a New Food Supplement Containing Actinia equina Extract

et al. 2020

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Marine species represent a great source of biologically active substances; Actinia equina (AE), an Anthozoa Cnidaria belonging to the Actinidiae family, have been proposed as original food and have already been included in several cooking recipes in local Mediterranean shores, and endowed with excellent nutraceutical potential. The aim of this study was to investigate some unexplored features of AE, through analytical screening and an in-vitro and in-vivo model. An in-vitro study, made on RAW 264.7 stimulated with H2O2, showed that the pre-treatment with AE exerted an antioxidant action, reducing lipid peroxidation and up-regulating antioxidant enzymes. On the other hand, the in-vivo study over murine model demonstrated that the administration of AE extracts is able to reduce the carrageenan (CAR)-induced paw edema. Furthermore, the histological damage due to the neutrophil infiltration is prevented, and this highlights precious anti-inflammatory features of the interesting food-stuff. Moreover, it was assessed that AE extract modulated nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) and The nuclear factor erythroid 2–related factor 2 (Nrf-2) pathways. In conclusion, our data demonstrated that thanks to the antioxidant and anti-inflammatory properties, AE extract could be used as a new food supplement for inflammatory pathology prevention.

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Section: Resultssupporting

confidence: 92%

Section: Fatty Acidssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 98%

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Properties of a New Food Supplement Containing Actinia equina Extract

et al. 2020

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“…In a study conducted in India, saturated and unsaturated fatty acids were detected in 4 sea anemones (Heteractis magnifica, H. aurora, Stichodactyla haddoni and S. gigantea) [24]. Yatkın and et al examined the seasonal changes of fatty acid content in Turkish sea anemone Actinia equina [25].…”

Section: Resultsmentioning

confidence: 99%

Bioactivity Screening and Isolation of Three Fatty Acid Ethyl Esters From Anemonia Viridis

Heydari¹

2020

FARMACIA

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Different habitats of seas and oceans make these ecosystems enormous sources of bioactive natural compounds. Marine species like terrestrial species produce terpenes, steroids, fatty acids, etc. In this study, we describe the isolation and structure identification of three fatty acids ethyl esters, 9-pentadecenoic acid ethyl ester, 9-heptadecenoic acid ethyl ester and 5,8,11,14,17-docosapentaenoic acid ethyl ester from Anemonia viridis coast of Bodrum (Turkish coast). The structure identification was made by NMR and Mass spectroscopic methods. Furthermore, the antioxidant and cytotoxic activity of extract were determined using the superoxide radical scavenging method and the MTT assay, respectively. Acetylcholinesterase inhibition and tyrosinase inhibition activities of methanolic extract of A. viridis were also screened. As a result, A. viridis methanolic extract possesses dose-dependent cytotoxic activity, moderate superoxide radical scavenging and tyrosinase inhibition activity. However, it was inactive against acetylcholinesterase enzyme. This is the first study on isolation of secondary metabolites and bioactivity screening of A. viridis from Turkey. Rezumat Diferitele habitate ale mărilor și oceanelor fac din aceste ecosisteme surse enorme de compuși naturali bioactivi. Speciile marine produc terpeni, steroizi, acizi grași. În acest studiu, descriem izolarea și identificarea structurii a trei esteri etilici ai acizilor grași din Anemonia viridis, originară de pe coasta marină din Turcia. Identificarea structurii a fost făcută prin metode RMN și spectroscopie de masă. S-a evaluat activitatea antioxidantă și citotoxică, precum și efectul asupra activității acetilcolinesterazei și tirozinazei.

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Non-trophic interactions amplify kelp harvest-induced biomass oscillations and biomass changes in a kelp forest ecological network model

Perälä,

Pesari,

Ahti

et al. 2023

Mar. Ecol. Prog. Ser.

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Kelp forests are important marine ecosystems providing habitat for numerous species. Despite over 50 yr of mechanical harvesting in the Northeast Atlantic, the indirect impacts of kelp harvesting and associated habitat loss on faunal species within kelp forests remain poorly understood. We investigated the consequences of kelp harvesting by developing an allometric trophic network model for a subtidal Northeast Atlantic kelp forest (dominated by Laminaria hyperborea). Additionally, we designed a novel mechanistic model to explore the non-trophic interactions between kelp and age-class 0 Atlantic cod Gadus morhua and between kelp and European lobster Homarus gammarus, specifically focusing on the increased survival benefits provided by the kelp habitat. Simulations were conducted over a 50 yr period, incorporating harvesting cycles of 2, 5, and 9 yr, as well as low and high harvesting intensities. Our findings reveal the complex dynamics resulting from kelp harvesting. The recovery of kelp biomass was observed with 5 and 9 yr harvesting cycles, whereas a decline was observed with a 2 yr cycle. Furthermore, the non-trophic interactions facilitated a higher pre-harvest biomass for both European lobster and Atlantic cod compared to scenarios without this interaction. These results highlight the multitrophic effects of kelp harvesting and emphasize that the recovery of kelp-associated species may not necessarily align with kelp recovery, depending on harvesting intensity and recovery periods. Importantly, our study contributes to a better understanding of the ecological consequences of kelp harvesting and underscores the need for sustainable management practices to mitigate habitat loss in kelp ecosystems.

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Seasonal Changes in the Chemical Composition of the Beadlet Anemones (Actinia equina) from Mersin Bay, Northeastern Mediterranean coast of Turkey

Cited by 3 publications

References 21 publications

Properties of a New Food Supplement Containing Actinia equina Extract

Properties of a New Food Supplement Containing Actinia equina Extract

Bioactivity Screening and Isolation of Three Fatty Acid Ethyl Esters From Anemonia Viridis

Non-trophic interactions amplify kelp harvest-induced biomass oscillations and biomass changes in a kelp forest ecological network model

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