Here we evaluated the levels of lipid oxidation products, fatty acids, ascorbic acid and colour Porphyra Ulva after oven-drying at 40 °C, during subsequent storage for ?370 days under light, semi-light dark conditions. Part seaweed was pre-soaked in freshwater or pre-coated with a whey protein mixture. Controls consisted freeze-dried seaweeds. Throughout there moderate development oxidation-der...

The ultrastructural basis of light-induced transmission and light scattering changes of thalli of Ulva and Porphyra were investigated by high resolution electron microscopy and microdensitometry. The results show that upon illumination of dark thalli (a) a reduction in thickness of thylakoid membranes (conformational change), (b) a more regular ordering, and (c) flattening of the thylakoids (co...

Marine algae contain large amounts of polysaccharides, notably cell wall structural, but also mycopolysaccharides and storage polysaccharides (Kumar et al. 2008b; Murata and Nakazoe 2001). Polysaccharides are polymers of simple sugars (monosaccharides) linked together by glycosidic bonds, and they have numerous commercial applications in products such as stabilisers, thickeners, emulsifiers, fo...

This study examines the species composition and seasonality of “green tides” (i.e., blooms of ulvoid macroalgae including Enteromorpha Link, Monostroma Thuret, Ulva (L.) Thuret, and Ulvaria Ruprecht spp.) in the northeastern Pacific region. Macroalgal blooms have been blamed for eradicating seagrass meadows, altering faunal community structure, and creating unsightly, malodorous piles on beache...

In vitro antioxidant activity of Ulva lactuca (Chlorophyta) and three brown seaweeds belonging to the division Phaeophyta were evaluated. The species Padina pavonica, Colpomenia sinuosa, Cystoseira myrica and U. lactuca were collected during low tide between March and June 2012 from the coastline of the Persian Gulf (Hormozgan and Bushehr provinces), Iran.Ethyl acetate, n-Hexane and methanol e...

Spent biomass of different seaweeds such as Sargassum wightii, Turbinaria conoides, Padina tetrastomata and Ulva lactuca were evaluated for the nutritional benefits in aqua feeds. Basic nutritional value, of seaweeds contains a number of pigments, defensive and storage compounds, and secondary metabolites that could have beneficial effects in farmed fish. Only a small fraction of algal species ...

All three macroalgal clades (Chlorophyta, Rhodophyta, and Phaeophyceae) contain bloom-forming species. Macroalgal blooms occur worldwide and have negative consequences for coastal habitats and economies. Narragansett Bay (NB), Rhode Island, USA, is a medium sized estuary that is heavily influenced by anthropogenic activities and has been plagued by macroalgal blooms for over a century. Over the...

L'analyse de l'ADN du spécimen lectotype d'Ulva nematoidea Bory (Ulvaceae, Chlorophyta) détermine sa synonymie avec Ulva lactuca L. est une espèce actuellement acceptée répartie dans le sud-est l'océan Pacifique, Mexique au Chili. Son identité reste cependant inconnue car aucune séquence d'ADN n'a été obtenue à partir type. Pour déterminer son et statut taxonomique, nous avons effectué un séque...