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2 edition of Biologically active compounds in seaweed extracts found in the catalog.

Biologically active compounds in seaweed extracts

C. A. Whapham

Biologically active compounds in seaweed extracts

by C. A. Whapham

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Published by University of Portsmouth, School of Pharmacy & Biomedical Sciences in Portsmouth .
Written in English


Edition Notes

Thesis (Ph.D.) - University of Portsmouth, 1995.

Statement[C.A. Whapham].
ID Numbers
Open LibraryOL21289297M

Algae are known to produce a variety of bioactive compounds (e.g., polysaccharides, phenolic compounds, proteins, lipids, carotenoids) that possess biological activities of potential medicinal, agricultural, and cosmetic value. Therefore, antioxidant, antimicrobial, antiviral, anti‐inflammatory properties of seaweed extracts are discussed.   Heparin yielded an EC50 of micromolar, or about one-third as active as remdesivir, and a non-anticoagulant analog of heparin yielded an EC50 of micromolar, about one-fifth as active as remdesivir. A separate test found no cellular toxicity in any of the compounds, even at the highest concentrations tested.

  The first edition of Bioactive Compounds from Natural Sources was published in a period of renewed attention to biologically active compounds of natural origin. This trend has continued and intensified-natural products are again under the spotlight, in .   Some supposedly inert ingredients in common drugs -- such as dyes and preservatives -- may potentially be biologically active and could lead to unanticipated side effects, according to a.

  Phlorofucofuroeckol-B, a compound identified in the Ecklonia arborea (formerly Eisenia arborea) extract, is a phlorotannin previously reported in this brown seaweed (Table 5). Phlorofucofuroeckol-B, isolated from Ecklonia bicyclis (formerly Eisenia bicilys) and Ecklonia arborea, has also been reported as showing potent antioxidant and anti-allergic [ 38, 39 ]. Ascophyllum nodosum, and to a lesser extent, Laminaria digitata, L. hyperborea and Fucus serratus, are marine algal species utilized in the commercial production of seaweed extracts used in es have been shown to be important constituents of these extracts, but there appears to have been no study made on whether there are variations in the betaine contents of these species.


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Biologically active compounds in seaweed extracts by C. A. Whapham Download PDF EPUB FB2

Chlorella vulgaris, Spirulina platensis, Navicula incerta and Pavalova lutheri are few potential algal species that could be used to extract biologically active peptides with significant therapeutic potentials is a widely studied marine microalga for extraction of bioactive peptides.

Mineral content of some seaweeds may account for up to 50%.Cited by: 4. Some seaweed components exhibit valuable functional properties including nutritional and health benefits, biologically active compounds, and physicochemical qualities. Their potential application transcends various industries such as functional foods, pharmaceuticals, agriculture, medicine, renewable fuel, biodegradable packaging.

The biologically active compounds which are transferred from the biomass of algae to the liquid phase include polysaccharides, proteins, polyunsaturated fatty ac- ids, pigments, polyphenols, mine. Biologically Active Compounds in Seaweed Extracts The Open Conference Proceedings Journal,Volume 3 21 groups, methoxyl groups, pyruvic acid acetals and glucosyl side chains.

These groups can be irregularly distributed through the macromolecule. Galactans. Seaweed in Health and Disease Prevention presents the potential usage of seaweed, macroalgae, and their extracts for enhancing health and disease.

The book explores the possibilities in a comprehensive way, including outlining how seaweed can be used as a source of macronutrients and micronutrients, as well as nutraceuticals. Seaweed extracts (SWE) are a complex matrix of biologically active compounds comprising both natural and break‐down products with the potential for yet more compounds to be identified.

The antimicrobial principle from seaweed was found Biologically active compounds in seaweed extracts book be a lipophilic compound. The compound was stable over a wide range of temperature (30–60 °C).

The active principles of highly active seaweeds Acrosiphonia orientalis and Stocheospermum marginatum were bactericidal. This is a preview of subscription content, log in to check access.

But a new study suggests that an extract from seaweed may outperform the drug. advertisement The extract, called RPI—found in the same type of seaweed that you might eat in sushi—helps trap. Heparin yielded an EC50 of micromolar, or about one-third as active as remdesivir, and a non-anticoagulant analog of heparin yielded an EC50 of micromolar, about one-fifth as active as remdesivir.

A separate test found no cellular toxicity in any of the compounds, even at the highest concentrations tested. Seaweed is a valuable source of structurally diverse biologically active compounds.

The materials presented in the review indicate that seaweed extracts and polysaccharides are effective candidates for the development of drugs, biological food additives, and functional nutrition products for the treatment and prevention of IBD.

Heparin yielded an EC50 of micromolar, or about one-third as active as remdesivir, and a non-anticoagulant analog of heparin yielded an EC50 of micromolar, about one-fifth as active as. Wild Irish Seaweed. Certified Organic Seaweeds hand harvested sustainably by the Talty Family off the coast of Co.

Clare on the west coast of Ireland. Connemara Organic Seaweed Company provide hand harvested, sustainable, kelp and seaweed products for human consumption through health supplements and edible products.

This is Seaweed. The finest. They are widely known as substances with the function of mitigating abiotic stress and enhancing plant productivity. Seaweed extracts are derived from the extraction of several macroalgae species, which depending on the extraction methodology lead to the production of complex mixtures of biologically active compounds.

A wide range of food products offer a variety of physiologically active compounds [2], [18], [19], [20], Seaweeds and seaweed-derived products are IJSTR© The present study reveals Osmundea pinnatifida as a promising source of biologically active compounds inhibiting fungal growth and conidiation, the main dispersal mechanism of filamentous fungi as Aspergillus fumigatus and Alternaria alternata, revealing its utility both as an environmental fungicide against fungal diseases and as a food preservative against fungal post-harvest food contamination.

The biologically active compounds which are transferred from the biomass of algae to the liquid phase include polysaccharides, proteins, polyunsaturated fatty ac-ids, pigments, polyphenols, minerals, plant growth hormones and other. With each compound, the researchers performed a dose response study on mammalian cells.

In a study in mammalian cells, an extract from edible seaweeds was found to outperform remdesivir, in effectiveness against SARS-CoV-2, the virus that causes CovidHeparin, a common blood thinner, and a heparin variant stripped of its anticoagulant properties, performed on par with.

The aim of the study was to use enzyme-assisted extraction as a tool to release the bioactive compounds from seven brown seaweeds of Kuwait coast and characterization of the active extracts. The enzymatic extracts obtained by hydrolysing seaweeds with five carbohydrases and three proteases were screened for antioxidant and antimicrobial activity.

The active substances in the seaweed extracts must therefore be capable of having an effect at a low concentration. Trace elements have been suggested as likely active constituents, but Blunden () and Blunden & Gordon () have concluded that the quantity of substances applied forms an insignificant proportion of the total requirements of.

Title:Bioactive Compounds from Seaweed with Anti-Leukemic Activity: A Mini-Review on Carotenoids and Phlorotannins VOLUME: 20 ISSUE: 1 Author(s):Tânia P. Almeida, Alice A. Ramos, Joana Ferreira, Amaya Azqueta and Eduardo Rocha* Affiliation:Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Center for Marine and Environmental Research.

Biological activities of seaweed extracts from British Columbia, Canada, and Korea. I. Antiviral activity and 22 extracts were active against only one of the viruses. Thus, in total 37% of the species were active, and only two of these extracts also showed cytotoxicity at the concentrations tested.

This high yield of antiviral extracts. Quantification of the compound. To quantify the active compounds directly from the seaweed tissue, g (%) of dichloromethane extract was obtained from g of powder.

The S14–2 and S14–3 peaks were integrated using the Empower™ software (Waters Co.), and the percentile dimensions were measured as % and % by HPLC. López et al. [41] prepared seaweed extract by mixing (with a magnetic stirrer) dried algal powder (brown algaStypocaulon scoparium) with solvents: water, water/methanol (1/1), methanol, and ethanol.

Then the extracts were examined for the total phenolic content (TPC) .