The Valorisation of Sargassum from Beach Inundations
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Oxygenated Acyclic Diterpenes with Anticancer Activity from the Irish Brown Seaweed Bifurcaria Bifurcata
marine drugs Article Oxygenated Acyclic Diterpenes with Anticancer Activity from the Irish Brown Seaweed Bifurcaria bifurcata Vangelis Smyrniotopoulos 1, Christian Merten 2, Daria Firsova 1, Howard Fearnhead 3 and Deniz Tasdemir 1,4,5,* 1 School of Chemistry, National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; [email protected] (V.S.); dashafi[email protected] (D.F.) 2 Organische Chemie 2, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany; [email protected] 3 Pharmacology and Therapeutics, School of Medicine, National University of Ireland Galway, University Road, H91 W2TY Galway, Ireland; [email protected] 4 GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, Am Kiel-Kanal 44, 24106 Kiel, Germany 5 Faculty of Mathematics and Natural Sciences, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany * Correspondence: [email protected]; Tel.: +49-431-600-4430 Received: 28 October 2020; Accepted: 19 November 2020; Published: 23 November 2020 Abstract: Brown alga Bifurcaria bifurcata is a prolific source of bioactive acyclic (linear) diterpenes with high structural diversity. In the continuation of our investigations on Irish brown algae, we undertook an in-depth chemical study on the n-hexanes and chloroform subextracts of B. bifurcata that led to isolation of six new (1–6) and two known (7–8) acyclic diterpenes. Chemical structures of the compounds were elucidated by a combination of 1D and 2D NMR, HRMS, FT-IR, [α]D and vibrational circular dichroism (VCD) spectroscopy. Compounds 1–8, as well as three additional linear diterpenes (9–11), which we isolated from the same seaweed before, were tested against the human breast cancer cell line (MDA-MB-231). -
Imported Food Risk Statement Hijiki Seaweed and Inorganic Arsenic
Imported food risk statement Hijiki seaweed and inorganic arsenic Commodity: Hijiki seaweed Alternative names used for Hijiki include: Sargassum fusiforme (formerly Hizikia fusiforme, Hizikia fusiformis, Crystophyllum fusiforme, Turbinaria fusiformis), Hizikia, Hiziki, Cystophyllum fusiforme, deer-tail grass, sheep- nest grass, chiau tsai, gulfweed, gulf weed ,hai ti tun, hai toe din, hai tsao, hai tso, hai zao, Hijiki, me-hijiki, mehijiki, hijaki, naga-hijiki, hoi tsou, nongmichae. Analyte: Inorganic arsenic Recommendation and rationale Is inorganic arsenic in Hijiki seaweed a medium or high risk to public health? Yes No Uncertain, further scientific assessment required Rationale: Inorganic arsenic is genotoxic and is known to be carcinogenic in humans. Acute toxicity can result from high dietary exposure to inorganic arsenic. General description Nature of the analyte: Arsenic is a metalloid that occurs in inorganic and organic forms. It is routinely found in the environment as a result of natural occurrence and anthropogenic (human) activity (WHO 2011a). While individuals are often exposed to organic and inorganic arsenic through the diet, it is the inorganic species (which include arsenate V and arsenite III) that are more toxic to humans. Only inorganic arsenic is known to be carcinogenic in humans (WHO 2011a). Inorganic arsenic contamination of groundwater is common in certain parts of the world. Dietary exposure to inorganic arsenic occurs predominantly from groundwater derived drinking-water, groundwater used in cooking and commonly consumed foods such as rice and other cereal grains and their flours (EFSA 2009; WHO 2011a; WHO 2011b). However fruits and vegetables have also been found to contain levels of inorganic arsenic in the range of parts per billion (FSA 2012). -
Quantifying Sargassum on Eastern and Western Walls of the Gulf
QUANTIFYING SARGASSUM ON EASTERN AND WESTERN WALLS OF THE GULF STREAM PROTRUDING NEAR CAPE HATTERAS INTO SARGASSO SEA BERMUDA/AZORES ABSTRACT The Sargasso Sea has been a marine life habitat for millions of years. located in the North Atlantic Subtropical Gyre with the western limit formed by the north and the north-eastern flowing, powerful ‘Gulf stream. The importance of the Sargasso Sea is recognized for the role of this current-system providing shelter and protection for marine animals such as fish and sea turtles. Two species of Sargassum natans and S. fluitans are highly branched with thalluses with numerous pneumatcyst that contain oxygen, nitrogen, and carbon dioxide to give buoyancy to the brownish algae. Sea surface winds cause Sargassum aggregate and form lengthy windrowed rafts to propagate. As the pneumatcyst lose their gasses, Sargassum can reach 100 meters below the sea’s surface or even accumulate on the sea floor. Accurate mapping of the boundary in the local area of the Gulf Stream near the coast of Cape Hatteras extending to Bermuda area has yet to be conducted using Earth observing Landsat satellites. Detection of these scattered aggregations of floating Sargassum suggests that this brown algae form small raft-like sea surface features In relativity to the resolution of Landsat series and Moderate Resolution Imaging Spectroradiometer (MODIS) atmospheric instruments have been found to have difficulty due to lack of spatial resolution, coverage, recurring observance, and algorithm limitations to identify pelagic species of Sargassum. Sargassum rafts, when identified, tend to be elongated and curved in the direction of the wind, and warmer than the surrounding ocean surface. -
Sunscreen, Antioxidant, and Bactericide Capacities of Phlorotannins from the Brown Macroalga Halidrys Siliquosa
1 Journal Of Applied Phycology Achimer December 2016, Volume 28 Issue 6 Pages 3547-3559 http://dx.doi.org/10.1007/s10811-016-0853-0 http://archimer.ifremer.fr http://archimer.ifremer.fr/doc/00366/47682/ © Springer Science+Business Media Dordrecht 2016 Sunscreen, antioxidant, and bactericide capacities of phlorotannins from the brown macroalga Halidrys siliquosa Le Lann Klervi 1, *, Surget Gwladys 1, Couteau Celine 2, Coiffard Laurence 2, Cerantola Stephane 3, Gaillard Fanny 4, Larnicol Maud 5, Zubia Mayalen 6, Guerard Fabienne 1, Poupart Nathalie 1, Stiger-Pouvreau Valerie 1 1 UBO, European Inst Marine Studies IUEM, LEMAR UMR UBO CNRS Ifremer IRD 6539, Technopole Brest Iroise, F-29280 Plouzane, France. 2 Nantes Atlant Univ, Univ Nantes, Fac Pharm, LPiC,MMS,EA2160, 9 Rue Bias,BP 53508, F-44000 Nantes, France. 3 UBO, RMN RPE MS, 6 Ave,Victor Le Gorgeu CS93837, F-29238 Brest 3, France. 4 CNRS, Plateforme Spectrometrie Masse MetaboMER, FR2424, Stn Biol, Pl Georges Teissier,BP 74, F-29682 Roscoff, France. 5 Venelle Carros, Labs Sci & Mer, CS 70002, F-29480 Le Relecq Kerhuon, France. 6 Univ Polynesie Francaise, EIO UMR 244, LabEx CORAIL, BP 6570, Faaa 98702, Tahiti, Fr Polynesia. * Corresponding author : Klervi Le Lann, email address : [email protected] Abstract : The present study focused on a brown macroalga (Halidrys siliquosa), with a particular emphasis on polyphenols and their associated biological activities. Two fractions were obtained by liquid/liquid purification from a crude hydroethanolic extract: (i) an ethyl acetate fraction and (ii) an aqueous fraction. Total phenolic contents and antioxidant activities of extract and both fractions were assessed by in vitro tests (Folin–Ciocalteu test, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, reducing power assay, superoxide anion scavenging assay, and β-carotene–linoleic acid system). -
Edible Seaweed from Wikipedia, the Free Encyclopedia
Edible seaweed From Wikipedia, the free encyclopedia Edible seaweed are algae that can be eaten and used in the preparation of food. They typically contain high amounts of fiber.[1] They may belong to one of several groups of multicellular algae: the red algae, green algae, and brown algae. Seaweeds are also harvested or cultivated for the extraction of alginate, agar and carrageenan, gelatinous substances collectively known as hydrocolloids or phycocolloids. Hydrocolloids have attained commercial significance, especially in food production as food A dish of pickled spicy seaweed additives.[2] The food industry exploits the gelling, water-retention, emulsifying and other physical properties of these hydrocolloids. Most edible seaweeds are marine algae whereas most freshwater algae are toxic. Some marine algae contain acids that irritate the digestion canal, while some others can have a laxative and electrolyte-balancing effect.[3] The dish often served in western Chinese restaurants as 'Crispy Seaweed' is not seaweed but cabbage that has been dried and then fried.[4] Contents 1 Distribution 2 Nutrition and uses 3 Common edible seaweeds 3.1 Red algae (Rhodophyta) 3.2 Green algae 3.3 Brown algae (Phaeophyceae) 3.3.1 Kelp (Laminariales) 3.3.2 Fucales 3.3.3 Ectocarpales 4 See also 5 References 6 External links Distribution Seaweeds are used extensively as food in coastal cuisines around the world. Seaweed has been a part of diets in China, Japan, and Korea since prehistoric times.[5] Seaweed is also consumed in many traditional European societies, in Iceland and western Norway, the Atlantic coast of France, northern and western Ireland, Wales and some coastal parts of South West England,[6] as well as Nova Scotia and Newfoundland. -
(GISD) 2021. Species Profile Sargassum Muticum. Available F
FULL ACCOUNT FOR: Sargassum muticum Sargassum muticum System: Marine Kingdom Phylum Class Order Family Plantae Phaeophycophyta Phaeophyceae Fucales Sargassaceae Common name Japweed (English), Tama-hahaki-moku (Japanese), Japans bessenwier (Dutch), Wireweed (English), Japanischer Beerentang (German), sargasso (Spanish), sargasse (French), strangle weed (English), Japansk drivtang (English), sargassosn?rje (Swedish), Butbl?ret sargassotang (Danish) Synonym Sargassum kjellmanianum , f. muticus Yendo Similar species Halidrys siliquosa, Cystoseira Summary Sargassum muticum is a large brown seaweed that forms dense monospecific stands. It can accumulate high biomass and may quickly become a strong competitor for space and light. Dense Sargassum muticum stands may reduce light, decrease flow, increase sedimentation and reduce ambient nutrient concentrations available for native kelp species. Sargassum muticum has also become a major nuisance in recreational waters. view this species on IUCN Red List Species Description MarLIN (2003) states that, \"Sargassum muticum is a large brown seaweed (with a frond often over 1m long), the stem has regularly alternating branches with flattened oval blades and spherical gas bladders. It is highly distinctive and olive-brown in colour.\" Arenas et al. (2002) report that, \"The growth form of S. muticum is modular and approaches the structural complexity of terrestrial plants. A plant (genet) of S. muticum is attached to the substratum by a perennial holdfast that gives rise to a single stem. Every year, several -
First Report of the Asian Seaweed Sargassum Filicinum Harvey (Fucales) in California, USA
First Report of the Asian Seaweed Sargassum filicinum Harvey (Fucales) in California, USA Kathy Ann Miller1, John M. Engle2, Shinya Uwai3, Hiroshi Kawai3 1University Herbarium, University of California, Berkeley, California, USA 2 Marine Science Institute, University of California, Santa Barbara, California, USA 3 Research Center for Inland Seas, Kobe University, Rokkodai, Kobe 657–8501, Japan correspondence: Kathy Ann Miller e-mail: [email protected] fax: 1-510-643-5390 telephone: 510-387-8305 1 ABSTRACT We report the occurrence of the brown seaweed Sargassum filicinum Harvey in southern California. Sargassum filicinum is native to Japan and Korea. It is monoecious, a trait that increases its chance of establishment. In October 2003, Sargassum filicinum was collected in Long Beach Harbor. In April 2006, we discovered three populations of this species on the leeward west end of Santa Catalina Island. Many of the individuals were large, reproductive and senescent; a few were small, young but precociously reproductive. We compared the sequences of the mitochondrial cox3 gene for 6 individuals from the 3 sites at Catalina with 3 samples from 3 sites in the Seto Inland Sea, Japan region. The 9 sequences (469 bp in length) were identical. Sargassum filicinum may have been introduced through shipping to Long Beach; it may have spread to Catalina via pleasure boats from the mainland. Key words: California, cox3, invasive seaweed, Japan, macroalgae, Sargassum filicinum, Sargassum horneri INTRODUCTION The brown seaweed Sargassum muticum (Yendo) Fensholt, originally from northeast Asia, was first reported on the west coast of North America in the early 20th c. (Scagel 1956), reached southern California in 1970 (Setzer & Link 1971) and has become a common component of California intertidal and subtidal communities (Ambrose and Nelson 1982, Deysher and Norton 1982, Wilson 2001, Britton-Simmons 2004). -
Monitoring Arsenic Species Content in Seaweeds Produced Off The
environments Article Monitoring Arsenic Species Content in Seaweeds Produced off the Southern Coast of Korea and Its Risk Assessment Min-hyuk Kim 1, Junseob Kim 2, Chang-Hyun Noh 1, Seogyeong Choi 1, Yong-Sung Joo 2 and Kwang-Won Lee 1,* 1 Department of Biotechnology, College of Life Science & Biotechnology, Korea University, Seoul 02841, Korea; [email protected] (M.-h.K.); [email protected] (C.-H.N.); [email protected] (S.C.) 2 Department of Statistics, College of Natural Science, Dongguk University, Seoul 04620, Korea; [email protected] (J.K.); [email protected] (Y.-S.J.) * Correspondence: [email protected]; Tel.: +82-2-3290-3473 Received: 22 July 2020; Accepted: 31 August 2020; Published: 3 September 2020 Abstract: Seaweed, a popular seafood in South Korea, has abundant dietary fiber and minerals. The toxicity of arsenic compounds is known to be related to their chemical speciation, and inorganic arsenic (iAs) is more detrimental than other species. Due to the different toxicities of the various chemical forms, speciation analysis is important for evaluating arsenic exposure. In this study, total arsenic (tAs) and six arsenic species (arsenite, arsenate, monomethylarsonic acid, dimethylarsinic acid, arsenobetaine, and arsenocholine) were analyzed in 180 seaweed samples. Although there were differences between seaweed species, the concentration of tAs was detected at levels ranging from 1 to 100 µg/g, and the distribution of six arsenic species differed depending on the seaweed species. No correlation between the concentration of iAs and tAs was found in most seaweed species. Through statistical clustering, hijiki and gulfweed were seen to be the seaweeds with the highest ratios of iAs to tAs. -
Plants and Ecology 2013:2
Fucus radicans – Reproduction, adaptation & distribution patterns by Ellen Schagerström Plants & Ecology The Department of Ecology, 2013/2 Environment and Plant Sciences Stockholm University Fucus radicans - Reproduction, adaptation & distribution patterns by Ellen Schagerström Supervisors: Lena Kautsky & Sofia Wikström Plants & Ecology The Department of Ecology, 2013/2 Environment and Plant Sciences Stockholm University Plants & Ecology The Department of Ecology, Environment and Plant Sciences Stockholm University S-106 91 Stockholm Sweden © The Department of Ecology, Environment and Plant Sciences ISSN 1651-9248 Printed by FMV Printcenter Cover: Fucus radicans and Fucus vesiculosus together in a tank. Photo by Ellen Schagerström Summary The Baltic Sea is considered an ecological marginal environment, where both marine and freshwater species struggle to adapt to its ever changing conditions. Fucus vesiculosus (bladderwrack) is commonly seen as the foundation species in the Baltic Sea, as it is the only large perennial macroalgae, forming vast belts down to a depth of about 10 meters. The salinity gradient results in an increasing salinity stress for all marine organisms. This is commonly seen in many species as a reduction in size. What was previously described as a low salinity induced dwarf morph of F. vesiculosus was recently proved to be a separate species, when genetic tools were used. This new species, Fucus radicans (narrow wrack) might be the first endemic species to the Baltic Sea, having separated from its mother species F. vesiculosus as recent as 400 years ago. Fucus radicans is only found in the Bothnian Sea and around the Estonian island Saaremaa. The Swedish/Finnish populations have a surprisingly high level of clonality. -
Marlin Marine Information Network Information on the Species and Habitats Around the Coasts and Sea of the British Isles
MarLIN Marine Information Network Information on the species and habitats around the coasts and sea of the British Isles Spiral wrack (Fucus spiralis) MarLIN – Marine Life Information Network Biology and Sensitivity Key Information Review Nicola White 2008-05-29 A report from: The Marine Life Information Network, Marine Biological Association of the United Kingdom. Please note. This MarESA report is a dated version of the online review. Please refer to the website for the most up-to-date version [https://www.marlin.ac.uk/species/detail/1337]. All terms and the MarESA methodology are outlined on the website (https://www.marlin.ac.uk) This review can be cited as: White, N. 2008. Fucus spiralis Spiral wrack. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. DOI https://dx.doi.org/10.17031/marlinsp.1337.1 The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available here. Based on a work at www.marlin.ac.uk (page left blank) Date: 2008-05-29 Spiral wrack (Fucus spiralis) - Marine Life Information Network See online review for distribution map Detail of Fucus spiralis fronds. Distribution data supplied by the Ocean Photographer: Keith Hiscock Biogeographic Information System (OBIS). -
Extraction Assistée Par Enzyme De Phlorotannins Provenant D'algues
Extraction assistée par enzyme de phlorotannins provenant d’algues brunes du genre Sargassum et les activités biologiques Maya Puspita To cite this version: Maya Puspita. Extraction assistée par enzyme de phlorotannins provenant d’algues brunes du genre Sargassum et les activités biologiques. Biotechnologie. Université de Bretagne Sud; Universitas Diponegoro (Semarang), 2017. Français. NNT : 2017LORIS440. tel-01630154v2 HAL Id: tel-01630154 https://hal.archives-ouvertes.fr/tel-01630154v2 Submitted on 9 Jan 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Enzyme-assisted extraction of phlorotannins from Sargassum and biological activities by: Maya Puspita 26010112510005 Doctoral Program of Coastal Resources Managment Diponegoro University Semarang 2017 Extraction assistée par enzyme de phlorotannins provenant d’algues brunes du genre Sargassum et les activités biologiques Maria Puspita 2017 Extraction assistée par enzyme de phlorotannins provenant d’algues brunes du genre Sargassum et les activités biologiques par: Maya Puspita Ecole Doctorale -
Marlin Marine Information Network Information on the Species and Habitats Around the Coasts and Sea of the British Isles
MarLIN Marine Information Network Information on the species and habitats around the coasts and sea of the British Isles Channelled wrack (Pelvetia canaliculata) MarLIN – Marine Life Information Network Biology and Sensitivity Key Information Review Nicola White 2008-05-29 A report from: The Marine Life Information Network, Marine Biological Association of the United Kingdom. Please note. This MarESA report is a dated version of the online review. Please refer to the website for the most up-to-date version [https://www.marlin.ac.uk/species/detail/1342]. All terms and the MarESA methodology are outlined on the website (https://www.marlin.ac.uk) This review can be cited as: White, N. 2008. Pelvetia canaliculata Channelled wrack. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. DOI https://dx.doi.org/10.17031/marlinsp.1342.1 The information (TEXT ONLY) provided by the Marine Life Information Network (MarLIN) is licensed under a Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales License. Note that images and other media featured on this page are each governed by their own terms and conditions and they may or may not be available for reuse. Permissions beyond the scope of this license are available here. Based on a work at www.marlin.ac.uk (page left blank) Date: 2008-05-29 Channelled wrack (Pelvetia canaliculata) - Marine Life Information Network See online review for distribution map Pelvetia canaliculata at the water's edge. Distribution data supplied by the Ocean Photographer: Judith Oakley Biogeographic Information System (OBIS).