Results 41 to 50 of about 655 (177)

A novel ulvan lyase family with broad-spectrum activity from the ulvan utilisation loci of Formosa agariphila KMM 3901 [PDF]

Scientific Reports, 2018
AbstractUlvan, which is one of the major structural polysaccharides of the cell walls of green macroalgae, is degraded by ulvan lyases via the β-elimination mechanism with the release of oligosaccharides that have unsaturated 4-deoxy-L-threo-hex-4-enopyranosiduronic acid (∆) at the non-reducing end. These ulvan lyases belong to the PL24 or PL25 or PL28
Venkat Rao Konasani, Chunsheng Jin, Niclas G. Karlsson, Eva Albers   +3 more
openaire   +3 more sources

Characterization of an Alteromonas long-type ulvan lyase involved in the degradation of ulvan extracted from Ulva ohnoi [PDF]

Bioscience, Biotechnology, and Biochemistry, 2017
Abstract Ulvan is a sulfated polysaccharide found in the cell wall of the green algae Ulva. We first isolated several ulvan-utilizing Alteromonas sp. from the feces of small marine animals. The strain with the highest ulvan-degrading activity, KUL17, was analyzed further.
Chuan, He, Hisashi, Muramatsu, Shin-Ichiro, Kato, Kouhei, Ohnishi   +3 more
openaire   +2 more sources

Sugar determination in ulvans by a chemical-enzymatic method coupled to high performance anion exchange chromatography

, 1997
International audienceThe sugar determination of ulvans, the water-soluble polysaccharides from Ulva sp. and Enteromorpha sp., was optimized by combining partial acid prehydrolysis (2 mol L-1 trifluoroacetic acid, 120°C) with enzymic hydrolysis (with β-D-
Lahaye, Marc,, Bobin-Dubigeon, Christine, Quemener, Bernard   +2 more
core   +1 more source

Overview on Biological Activities and Molecular Characteristics of Sulfated Polysaccharides from Marine Green Algae in Recent Years

Marine Drugs, 2014
Among the three main divisions of marine macroalgae (Chlorophyta, Phaeophyta and Rhodophyta), marine green algae are valuable sources of structurally diverse bioactive compounds and remain largely unexploited in nutraceutical and pharmaceutical areas ...
Lingchong Wang, Xiangyu Wang, Hao Wu, Rui Liu   +3 more
doaj   +1 more source

Immunomodulating effect of a seaweed extract from Ulva armoricana in pig: Specific IgG and total IgA in colostrum, milk, and blood

Veterinary and Animal Science, 2019
The transfer of passive immunity from sows to piglets can be improved through the administration of immuno-stimulating products before farrowing. This study evaluated the immuno-stimulating effect of an algal sulfated polysaccharide extract (MSP extract)
Frederick Bussy, Le Goff Matthieu, Henri Salmon, José Delaval, Mustapha Berri, Nyvall Collén Pi   +5 more
doaj   +1 more source

Marine Macroalgae as a Safe Healthy Food While Meeting Food Security Challenges Arising From Climate Changes

Food Safety and Health, EarlyView.
Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley   +1 more source

Extraction and evaluation of biological properties of ulvans and oligo-ulvans from green seaweed Ulva sp. : actions on the metabolism of skin cells and on skin microbiota

, 2021
Les ulvanes sont des polysaccharides matriciels sulfatés constitutifs de la paroi de l’algue verte Ulva sp.. Bien que proliférative et quantitativement disponible, Ulva sp. est peu valorisée avec des applications dans des domaines à faible valeur ajoutée.
Fournière, Mathilde
core  

Beyond Gut Modulation: A Critical Review of the Therapeutic Potential, Safety, and Clinical Prospects of Natural Polysaccharides for IBD

Food Safety and Health, EarlyView.
In this review, we critically summarized the application of natural polysaccharides (NPs) for the treatment of IBD. This approach combines, in a unique way (right), the basic structure–activity relationships of NPs from different origins (left) with their multipronged mode of action, which involves modulation of the gut microbiota and other ...
Felix Danso, A. M. Abd El‐Aty, Kwaku Amoah, Xianghong Ju   +3 more
wiley   +1 more source

Atlantic salmon (Salmo salar L.) kelt rheotaxis and position choice are influenced by flow velocity and turbulence in a regulated river

Journal of Fish Biology, EarlyView.
Abstract The migratory behaviour of Atlantic salmon kelts is poorly understood. Due to the Atlantic salmon's considerable socio‐economic and ecological importance, their precipitous population abundance declines, and the population resilience potential of salmon kelts, addressing these knowledge gaps is important.
Olivia Meredith Simmons, David Aldvén, Patrik Andreasson, Henrik Baktoft, Olle Calles, Ola Diserud, Torbjørn Forseth, Karl Gjelland, Stephanie Müller, Finn Økland, Ana Teixeira da Silva   +10 more
wiley   +1 more source

Design, preparation and characterization of ulvan based thermosensitive hydrogels [PDF]

Carbohydrate Polymers, 2016
The present study is focused on the exploitation and conversion of sulphated polysaccharides obtained from waste algal biomass into high value added material for biomedical applications. ulvan, a sulphated polysaccharide extracted from green seaweeds belonging to Ulva sp.
MORELLI, ANDREA, Betti, Margherita, PUPPI, DARIO, CHIELLINI, FEDERICA   +3 more
openaire   +3 more sources