Occurrence and chemical form of arsenic in marine macroalgae from the east coast of Australia

Rehema Tukai, William Maher, Ian McNaught, Michael Ellwood, M Coleman

    Research output: Contribution to journalArticle

    49 Citations (Scopus)

    Abstract

    Arsenic concentrations were measured in thirteen macroalgal species from Sydney, Australia. Brown macroalgae contained, on average, more arsenic (range, mean ± s.e.: 5–173 μg g–1, 39 ± 4 μg g–1) than either green (0.12–30.2 μg g–1, 10.7 ± 0.7 μg g–1) or red macroalgae (0.11–16.9 μg g–1, 4.3 ± 0.3 μg g–1). Despite the overlap in arsenic concentrations between different macroalgal species, inter-species arsenic variation was apparent with arsenic concentrations following the order brown > green > red macroalgal species. It was concluded that the main contribution to the variation in arsenic concentration was from natural variability expected to occur between individuals of any species as a result of physiological differences.Most of the arsenic compounds in macroalgae (70–108%) could be extracted using methanol/water mixtures, with 38–95% of the arsenic compounds present in characterizable forms. All macroalgal species contained arsenoribosides (9–99%). The distribution of arsenoribosides followed a general pattern; glycerol-arsenoriboside and phosphate-arsenoriboside were common to all macroalgal species. Sulfonate-arsenoriboside and sulfate-arsenoriboside were found in brown macroalgal species and one red macroalgal species. Six macroalgal species contained high concentrations of inorganic arsenic (14.2–62.9%) and four species contained high concentrations of dimethylarsinic acid (13.3–41.1%). The variation in the distribution of arsenic compounds in marine macroalgal species appears to be related to taxonomic differences in storage and structural polysaccharides
    Original languageEnglish
    Pages (from-to)971-980
    Number of pages10
    JournalMarine and Freshwater Research
    Volume53
    Issue number6
    Publication statusPublished - 2002

    Fingerprint

    arsenic
    macroalgae
    coasts
    arsenicals
    coast
    cacodylic acid
    sulfonates
    chemical
    glycerol
    sulfates
    methanol
    polysaccharides
    phosphates
    sulfonate
    polysaccharide
    phosphate
    sulfate
    water

    Cite this

    Tukai, Rehema ; Maher, William ; McNaught, Ian ; Ellwood, Michael ; Coleman, M. / Occurrence and chemical form of arsenic in marine macroalgae from the east coast of Australia. In: Marine and Freshwater Research. 2002 ; Vol. 53, No. 6. pp. 971-980.
    @article{ea5db9033c7d4513933a00b743d6882e,
    title = "Occurrence and chemical form of arsenic in marine macroalgae from the east coast of Australia",
    abstract = "Arsenic concentrations were measured in thirteen macroalgal species from Sydney, Australia. Brown macroalgae contained, on average, more arsenic (range, mean ± s.e.: 5–173 μg g–1, 39 ± 4 μg g–1) than either green (0.12–30.2 μg g–1, 10.7 ± 0.7 μg g–1) or red macroalgae (0.11–16.9 μg g–1, 4.3 ± 0.3 μg g–1). Despite the overlap in arsenic concentrations between different macroalgal species, inter-species arsenic variation was apparent with arsenic concentrations following the order brown > green > red macroalgal species. It was concluded that the main contribution to the variation in arsenic concentration was from natural variability expected to occur between individuals of any species as a result of physiological differences.Most of the arsenic compounds in macroalgae (70–108{\%}) could be extracted using methanol/water mixtures, with 38–95{\%} of the arsenic compounds present in characterizable forms. All macroalgal species contained arsenoribosides (9–99{\%}). The distribution of arsenoribosides followed a general pattern; glycerol-arsenoriboside and phosphate-arsenoriboside were common to all macroalgal species. Sulfonate-arsenoriboside and sulfate-arsenoriboside were found in brown macroalgal species and one red macroalgal species. Six macroalgal species contained high concentrations of inorganic arsenic (14.2–62.9{\%}) and four species contained high concentrations of dimethylarsinic acid (13.3–41.1{\%}). The variation in the distribution of arsenic compounds in marine macroalgal species appears to be related to taxonomic differences in storage and structural polysaccharides",
    author = "Rehema Tukai and William Maher and Ian McNaught and Michael Ellwood and M Coleman",
    year = "2002",
    language = "English",
    volume = "53",
    pages = "971--980",
    journal = "Marine Freshwater Research",
    issn = "0067-1940",
    publisher = "CSIRO",
    number = "6",

    }

    Occurrence and chemical form of arsenic in marine macroalgae from the east coast of Australia. / Tukai, Rehema; Maher, William; McNaught, Ian; Ellwood, Michael; Coleman, M.

    In: Marine and Freshwater Research, Vol. 53, No. 6, 2002, p. 971-980.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Occurrence and chemical form of arsenic in marine macroalgae from the east coast of Australia

    AU - Tukai, Rehema

    AU - Maher, William

    AU - McNaught, Ian

    AU - Ellwood, Michael

    AU - Coleman, M

    PY - 2002

    Y1 - 2002

    N2 - Arsenic concentrations were measured in thirteen macroalgal species from Sydney, Australia. Brown macroalgae contained, on average, more arsenic (range, mean ± s.e.: 5–173 μg g–1, 39 ± 4 μg g–1) than either green (0.12–30.2 μg g–1, 10.7 ± 0.7 μg g–1) or red macroalgae (0.11–16.9 μg g–1, 4.3 ± 0.3 μg g–1). Despite the overlap in arsenic concentrations between different macroalgal species, inter-species arsenic variation was apparent with arsenic concentrations following the order brown > green > red macroalgal species. It was concluded that the main contribution to the variation in arsenic concentration was from natural variability expected to occur between individuals of any species as a result of physiological differences.Most of the arsenic compounds in macroalgae (70–108%) could be extracted using methanol/water mixtures, with 38–95% of the arsenic compounds present in characterizable forms. All macroalgal species contained arsenoribosides (9–99%). The distribution of arsenoribosides followed a general pattern; glycerol-arsenoriboside and phosphate-arsenoriboside were common to all macroalgal species. Sulfonate-arsenoriboside and sulfate-arsenoriboside were found in brown macroalgal species and one red macroalgal species. Six macroalgal species contained high concentrations of inorganic arsenic (14.2–62.9%) and four species contained high concentrations of dimethylarsinic acid (13.3–41.1%). The variation in the distribution of arsenic compounds in marine macroalgal species appears to be related to taxonomic differences in storage and structural polysaccharides

    AB - Arsenic concentrations were measured in thirteen macroalgal species from Sydney, Australia. Brown macroalgae contained, on average, more arsenic (range, mean ± s.e.: 5–173 μg g–1, 39 ± 4 μg g–1) than either green (0.12–30.2 μg g–1, 10.7 ± 0.7 μg g–1) or red macroalgae (0.11–16.9 μg g–1, 4.3 ± 0.3 μg g–1). Despite the overlap in arsenic concentrations between different macroalgal species, inter-species arsenic variation was apparent with arsenic concentrations following the order brown > green > red macroalgal species. It was concluded that the main contribution to the variation in arsenic concentration was from natural variability expected to occur between individuals of any species as a result of physiological differences.Most of the arsenic compounds in macroalgae (70–108%) could be extracted using methanol/water mixtures, with 38–95% of the arsenic compounds present in characterizable forms. All macroalgal species contained arsenoribosides (9–99%). The distribution of arsenoribosides followed a general pattern; glycerol-arsenoriboside and phosphate-arsenoriboside were common to all macroalgal species. Sulfonate-arsenoriboside and sulfate-arsenoriboside were found in brown macroalgal species and one red macroalgal species. Six macroalgal species contained high concentrations of inorganic arsenic (14.2–62.9%) and four species contained high concentrations of dimethylarsinic acid (13.3–41.1%). The variation in the distribution of arsenic compounds in marine macroalgal species appears to be related to taxonomic differences in storage and structural polysaccharides

    M3 - Article

    VL - 53

    SP - 971

    EP - 980

    JO - Marine Freshwater Research

    JF - Marine Freshwater Research

    SN - 0067-1940

    IS - 6

    ER -