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Some structural aspects of vanadium bromoperoxidase from Ascophyllum nodosum
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1990The stability of the vanadium containing bromoperoxidase from Ascophyllum nodosum was studied. The enzyme was very resistant against chemical denaturation. Denaturation did not occur upon incubation in 4 M guanidine hydrochloride. Circular dichroism measurements showed that the secondary structure was not affected upon incubation in 4% sodium dodecyl ...
M G, Tromp +3 more
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Sterols in Ascophyllum nodosum
Phytochemistry, 1970Abstract In stored, milled, dried Ascophyllum nodosum, saringosterol, 24-ketocholesterol, fucosterol, 24-methylenecholesterol, 24-methyl-Δ5,22-cholestadien-3β-ol, cholesterol and a trace of 24-ethylcholesterol were detected in the sterol fraction. Whereas, from freshly harvested and dried A.
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Vanadium K-edge absorption spectrum of bromoperoxidase from Ascophyllum nodosum
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1988With synchrotron radiation from the Bonn 2.5 GeV synchrotron, high-resolution absorption spectra have been measured at the vanadium K-edge of bromoperoxidase from the marine brown alga Ascophyllum nodosum and several model compounds. The near-edge structure (XANES) of these spectra was used to determine the charge state and the coordination geometry ...
J, Hormes +7 more
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Do littorinids affect the survival of Ascophyllum nodosum germlings?
Journal of Experimental Marine Biology and Ecology, 1997Abstract The survival of germlings of the brown alga Ascophyllum nodosum on the west coast of Sweden were investigated in two field experiments. In the first experiment the role of Littorina fabalis , L. littorea , L. obtusata and L. saxatilis for the survival of 5 days old germlings were tested at two spatial scales, by comparing plots ...
Gunnar Cervin, Per Åberg
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Experimental oil exposure of Ascophyllum nodosum (L.) Le Jolis
Journal of Experimental Marine Biology and Ecology, 1993Abstract The effect of weathered, crude oil on Ascophyllum nodosum was tested in an outdoor experiment and in a laboratory experiment. Adult A. nodosum plants which were exposed to oil in an outdoor basin for 3 days showed reduced growth for a certain period of time, after which growth recovered. Also, some necrotic damage was observed.
Kjersti Sjøtun, Tor Eiliv Lein
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Extraction and characterization of protein from Irish brown seaweed Ascophyllum nodosum
Food Research International, 2017This study investigates traditional and non-conventional methods of extraction of protein from Irish brown seaweed A. nodosum. Acid, alkali, combined acid-alkali with and without ultrasound pretreatment were investigated for extraction of protein from A. nodosum.
Shekhar U, Kadam +3 more
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The Sperm Attractant of the Marine Brown Alga Ascophyllum nodosum (Phaeophyceae)
Science, 1982Spermatozoids of the intertidal seaweed Ascophyllum nodosum (Fucales, Phaeophyceae) are attracted to eggs prior to fertilization. The attractant has been isolated and its structure identified as 1(3 E ,5 Z ,8 Z )-undecatetraene (finavarrene ...
Müller, D. +4 more
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Structural features of a novel glucuronogalactofucan from ascophyllum nodosum
Carbohydrate Research, 1978Abstract Extraction of the brown alga Ascophyllum nodosum with water (adjusted to pH 2) yielded several fucose-containing polymer fractions 1 . One of these fractions was further purified by repeated fractional precipitation with ethanol from aqueous calcium chloride solutions. The resulting, electrophoretically (cellulose acetate) pure polymer was
Darrell G. Medcalf +2 more
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Alginate stability during high salt preservation of Ascophyllum nodosum
Journal of Applied Phycology, 1999Formaldehyde is usually added to brown algae to avoid microbial growth during storage and to fix polyphenols in the algae before alginate extraction. Since formaldehyde is toxic, allergenic and possibly carcinogenic, dry salting of Ascophyllum nodosum was tested as an alternative.
Einar Moen +3 more
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Ultrasound, microwave and enzyme-assisted multiproduct biorefinery of Ascophyllum nodosum
Food ChemistryThis study investigated the multiproduct (fucoidans, β-glucans, proteins, carotenoids, fatty acids, amino acids and polyphenols) valorization of the invasive macroalgae Ascophyllum nodosum within a green biorefinery concept using ultrasound (US), microwave (MW) treatment followed by supercritical CO2 (SC-CO2) with co-solvent and enzymatic extraction ...
Periaswamy Sivagnanam, Saravana +5 more
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