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Showing 1 to 20 of 59 for “"SEAWEEDS"”.
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The Bioactivity and Natural Products of Scottish Seaweeds
Seaweed has traditionally been used in Scotland and other countries both as food and for medicinal purposes, which has led to seaweed being investigated for their natural product content. Despite over 30 years of research, the majority of species found in Scotland have yet to have their chemistry …
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An investigation of the prebiotic potential and gut health benefits of Irish seaweeds
Seaweeds are an excellent source of biologically active secondary metabolites. Compounds from seaweeds have exhibited a wide range of therapeutic activities and seaweeds have now been proposed as a new source of prebiotics. Firstly, the bifidogenic potential of 15 Irish seaweeds was assessed using …
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Investigating the effects of pre-treatment of tropical seaweeds and freshwater macrophytes for bioenergy production
… both marine and freshwater species, especially seaweeds, water hyacinth and water lettuce are rich in polysaccharides, and generally have high growth. This study aimed at investigating the potential for the production of bioenergy from selected tropical seaweed and freshwater macrophytes in …
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Biological and economical feasibility studies of using seaweeds Ulva lactuca (Chlorophyta) in recirculation systems in abalone farming
The aim of this study was to investigate whether a land-based recirculating seaweed-abalone integrated aquaculture system using Ulva lactuca was feasible as well as to test the differences between a commercial gravel bed recirculation system to an existing flow through system. These studies were …
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Studies on the ecology and production of seaweeds of economic and potential economic importance on the Namibian coast
The seaweeds of the Namibian coast have received little attention from researchers despite the fact that there is a successful industry based on seaweed exploitation. Beach cast Gracilaria verrucosa (Hudson) Papenfuss is collected (9000-15000 t (wet) y⁻¹) in the Luderitz area for the production of …
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Seaweed as a value-added product for the food and drink sector
… enhanced nutritional and therapeutic benefits. Seaweeds are a product that could help meet these needs. Seaweeds grow naturally without the need for freshwater and fertilisers and do not compete for traditional agricultural land. The environmental impacts of harvesting wild seaweeds or growing …
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Some South African red seaweed polysaccharides
… cellulose in land plants. Laminarin from brown seaweeds and Floridean starch from certain red algae are reserve polysaccharides while algihates (from brown seaweeds) and carrageenin and agar (from red seaweeds) are structural polyrsaccharides. The most common encountered algal polycysaccharides, …
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Testing the suitability of local seaweeds and formulated feed as a food source for abalone (Haliotis midae Linnaeus) in an Integrated Land-based Aquaculture System
The direct methanol fuel cell or DMFC is emerging as a promising alternative energy source for many applications. Developed and developing countries, through research, are fast seeking a cheap and stable supply of energy for an ever-increasing number of energyconsuming portable devices. The …
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Distribution and biomass of epiphytic seaweeds on the kelp Ecklonia maxima (Osbeck) Papenfuss, and the potential effects of two kelp-harvesting methods in the Western Cape
The demand for freshly harvested kelp, Ecklonia maxima, in the Western Cape, has greatly increased due to the need for fodder to supply the growing abalone industry. There is evidence suggesting that the present demand may exceed the amount of E. maxima available, if the traditional method of …
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Floating seaweed as ephemeral neustonic habitat
… demonstrate that the habitat formed by floating seaweeds is very complex. Although the presence of floating seaweeds in the neuston can, to a certain degree, be seasonally predicted (storms, seasonal release of fertile structures), the habitat that they form is still very patchy and unstable. …
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Reducing the Environmental Impact of Seacage Fish Farming Through Cultivation of Seaweed
… to the salmon cages in summer was higher than in seaweeds cultured at reference sites away from fish cages.<br/>Stable nitrogen isotope analysis indicates that the nitrogen in seaweeds grown next to salmon cages is derived from the fish farm and farm derived nitrogen is likely to be widely …
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Molecular biology approach to anaerobic digestion of marine biomass: Anaerobic digestion from marine materials. What makes a methanogen happy?
… process has so far received little attention. As seaweeds have been shown to contain constituents with antimicrobial properties, understanding the microbial interactions in the system is crucial.<br/>The aim of this study was to investigate the microbial community associated with seaweed anaerobic …
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Maximising seaweed concentration by considering different matrixes in food products and consumer sensory techniques
… study investigated rehydrating several dried seaweeds sent to Abertay, Scotland from the factory and harvest site in Wick, Scotland. Once the data was recorded appropriate seaweeds were selected for varying food products based on volumes, accessibility, seasonality and nutritional properties. …
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Biomethane production from macroalgae
Irish brown seaweeds have been identified as a potential bio-resource with potentially high specific methane yields. Anaerobic digestion is deemed the most feasible technology due to its commercial viability for handling such wet feedstock. However, the biomethane potential of seaweed is highly …
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Environmental and Biotic Drivers of Seaweed–Bacterial Interactions: Insights into the Seaweed Holobiont
Seaweeds are host to a wide variety of microbes with which they form chemically mediated relationships, operating as a unified holobiont - an integrated functional unit. Host fitness is reliant on this symbiosis, with interactions from epiphytic bacteria necessary for the correct physiological …
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Seaweed diversity in Saldanha Bay and the effects of human activities
Several accounts have been produced on the seaweeds of the west coast including the Saldanha and Langebaan System, but none has looked at how human activities may have affected the seaweed diversity of Saldanha Bay. The major human activities in the Bay include shipping and mariculture. The major …
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Alginate and laminarin degrading enzymes from Vibrio splendidus and Vibrio breoganii
… 13B01, and V. breoganii 1C10 metabolize brown seaweeds. Brown seaweeds have many advantages over terrestrial feedstocks, including fast growth and non-recalcitrant carbon feedstocks, so brown seaweeds are an attractive target for industrial fermentation. Alginate and laminarin are two major …
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A biogeographic analysis of the seaweed flora of the west coast of southern Africa, from Lüderitz to Cape Agulhas
… latitude. Patterns in endemism among the brown seaweeds follow this trend. In contrast to this, red and green endemics increase with a decrease in latitude. Shore distribution patterns were reviewed, and demonstrated an increase in diversity with a progression down the shore. Among the red …
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Cellular and in-vitro models to assess antioxidant activities of seaweed extracts and the potential use of the extracts as ingredients
Seaweeds contain a range of antioxidant compounds such as polyphenols, carotenoids, sulphated polysaccharides and vitamins and have the potential to be used as ingredients in neutraceuticals. The antioxidant activity of crude 60% methanol extracts prepared from five Irish seaweeds, Ascophyllum …
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