Results 21 to 30 of about 2,265 (182)

Perspectives on Biomedical Applications of Ulvan

, 2017
Ulvan, a sulfated polysaccharide extracted from green algae belonging to Ulva species, has been shown to display a wide range of biological properties that significantly contribute to the beneficial health effects obtained by algal food consumption. The present book chapter aims to provide an overview of the more recently adopted strategies for the ...
Morelli, Andrea, Puppi, Dario, Chiellini, Federica   +2 more
openaire   +3 more sources

Ultrastructure of ulvan: A polysaccharide from green seaweeds

Biopolymers, 2009
AbstractUltrastructural analysis of the gel forming green seaweed sulfated polysaccharide ulvan revealed a spherical‐based morphology (10–18 nm diameter) more or less aggregated in aqueous solution. At pH 13 in TBAOH (tetrabutyl ammonium hydroxyde) or NaOH, ulvan formed an open gel‐like structure or a continuous film by fusion or coalescence of bead ...
Robic, Audrey, Gaillard, Cedric, Sassi, Jean-François, Lerat, Yannick, Lahaye, Marc   +4 more
openaire   +5 more sources

Ulvan: A systematic review of extraction, composition and function [PDF]

Algal Research, 2019
Abstract Species of green macroalgae (Chlorophyta) of the genus Ulva are edible seaweeds with a range of health promoting bioactive components. Ulva is high in dietary fibre which promotes gastrointestinal health and is linked to a reduction in the incidence of chronic diseases. The fundamental active constituent of Ulva is the soluble fibre ulvan, a
Joel T. Kidgell, Marie Magnusson, Rocky de Nys, Christopher R.K. Glasson   +3 more
openaire   +3 more sources

Ulvan-mediated biogenic selenium nanoparticles enhance bone fracture healing in a rat model

Open Chemistry
Bone fractures remain a significant clinical challenge, with current treatments often facing limitations. This study investigated the potential of ulvan-mediated biogenic selenium nanoparticles (Ulvan-SeNPs) to enhance bone fracture healing through ...
Mekkawy Sara A., Abdelmaguid Ahmed M., Mumtaz Farah, Abdalla Mohga S., El-Khadragy Manal F., Abdel Moneim Ahmed E., Abdelfattah Mohamed S.   +6 more
doaj   +2 more sources

Biofunctionalization of Ulvan Scaffolds for Bone Tissue Engineering

ACS Applied Materials & Interfaces, 2014
Photo-cross-linked ulvan scaffolds were designed with the aim to induce and support enzyme mediated formation of apatite minerals, in the absence of osteogenic growth factors. Scaffold formation with a desired geometry was investigated using chemically modified ulvan bearing radically polymerizable groups.
Mamoni, Dash, Sangram K, Samal, Cristina, Bartoli, Andrea, Morelli, Philippe F, Smet, Peter, Dubruel, Federica, Chiellini   +6 more
openaire   +3 more sources

Long-type ulvan lyase in Alteromonas sp. is a major enzyme involved in degradation of ulvan extracted from Ulva ohnoi

, 2017
Abstract: Ulvan is one of the key sulfated polysaccharide components constituting the cell walls of green algae, Ulva. A little study has been performed so far on the ulvan degrading bacterial enzymes. In order to utilize ulvan effectively by breaking down to oligosaccharides and monosaccharide, we have studied ulvan-degrading bacterial enzymes.
Chuan He, Kouhei Ohnishi
openaire   +3 more sources

Sustainable Production of Ulva Oligosaccharides via Enzymatic Hydrolysis: A Review on Ulvan Lyase

Foods
Ulvan is a water-soluble sulfated polysaccharide extracted from the green algae cell wall. Compared with polysaccharides, oligosaccharides have drawn increasing attention in various industries due to their enhanced biocompatibility and solubility.
Ailan Huang, Xinming Wu, Fuping Lu, Fufeng Liu   +3 more
doaj   +2 more sources

Ulvan/Silver nanoparticle hydrogel films for burn wound dressing

Heliyon, 2023
Ulvan is a polysaccharide from green algae that shows good hydrogel film dressing characteristics. Silver nanoparticles (AgNP) can be incorporated into the hydrogel film to improve antibacterial properties and provide a potential burn treatment.
Evi Sulastri, Ronny Lesmana, Muhammad Sulaiman Zubair, Ahmed Fouad Abdelwahab Mohammed, Khaled M. Elamin, Nasrul Wathoni   +5 more
doaj   +2 more sources

Anti-inflammatory potential of ulvan

International Journal of Biological Macromolecules, 2023
Green seaweeds are a widespread group of marine macroalgae that could be regarded as biorenewable source of valuable compounds, in particular sulfated polysaccharides like ulvans with interesting biological properties. Among them, anti-inflammatory activity represents an interesting target, since ulvans could potentially avoid side effects of ...
Flórez-Fernández, Noelia, Rodríguez-Coello, Arianna, Latire, Thomas, Bourgougnon, Nathalie, Torres, M. Dolores, Buján, Manuela, Muíños, Alexandra, Muiños, Antonio, Meijide-Faílde, Rosa, Blanco, Francisco, Vaamonde-García, Carlos, Domínguez, Herminia   +11 more
openaire   +5 more sources

Ulvans are Not Equal - Linkage and Substitution Patterns in Ulvan Polysaccharides Differ with Ulva Morphology

Carbohydrate Polymers, 2023
Ulva are hardy green seaweeds that contain the sulfated polysaccharide ulvan and grow in two distinct morphologies: foliose and tubular. The authors hypothesise that ulvan from tubular species are more structurally complex than ulvans from foliose species.
Joel T, Kidgell, Christopher R K, Glasson, Marie, Magnusson, Ian M, Sims, Simon F R, Hinkley, Rocky, de Nys, Susan M, Carnachan   +6 more
openaire   +2 more sources