Effects of extraction procedures and plasticizer concentration on the optical, thermal, structural and antioxidant properties of novel ulvan films

Guidara, Mariem; Yaich, Héla; Richel, Aurore; Blecker, Christophe; Boufi, Sami; Attia, Hamadi; Garna, Haikel

doi:10.1016/j.ijbiomac.2019.05.196

Cited by 58 publications

(46 citation statements)

References 47 publications

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“…Ulvan mainly consists of cellulose, xyloglucan, and glucuroran with other various types of sugars. It has a low content of mannose, galactose, and arabinose [10,21]. Ulvan is mainly built on a repetitive sequence of disaccharides that consist of rhamnose sulfate, uronic acid, iduronic acid, or xylose.…”

Section: Chemistry and Physicochemical Propertiesmentioning

confidence: 99%

“…The two main repeating disaccharides are aldobiuronic acids, which are designated as type A ulvanobiuronic acid 3-sulfate (A 3S ) and type B ulvanobiuronic acid 3-sulfate (B 3S ) ( Figure 2) [2,3,22]. In addition to the polysaccharide content, there are also other contents such as protein around 1-3% and fatty acids less than 1% [10,22,23]. The physicochemical properties of the active components contained in ulvan-hydration, polarity, swelling, and viscosity-are related to stability and physiological effects.…”

Section: Chemistry and Physicochemical Propertiesmentioning

confidence: 99%

“…The process of dissolving the fiber is influenced by pH: At pH 3, the insoluble fiber content is around 5.5%, while at pH 7, the insoluble fiber content is 7.5%. The pH also affects the zeta potential: the higher the extraction pH, the lower the zeta potential produced (with a range of −15 to −35) [10]. Ulvan has a low viscosity [22].…”

Section: Extractionmentioning

confidence: 99%

“…Ulvan extracted has a moisture content > 90% [21]. Another study stated that a film with U. lactuca polymer is stable between −50 to 250 • C [10]. Yields resulting from acid extraction decrease when constant pH and temperature are used.…”

Section: Extractionmentioning

confidence: 99%

“…Ulvan is widely used as a food additive and several studies have examined its therapeutic benefits [7][8][9]. New developments will aim to utilize ulvan from various Ulva species as an active ingredient or as an additive to deliver active ingredients in therapeutic preparations [10]. Several studies have indicated that ulvan has optimal physicochemical properties and active ingredients that can serve as therapeutic biological agents.…”

Section: Introductionmentioning

confidence: 99%

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Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

et al. 2020

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The species of green macroalga belonging to the genus Ulva (family: Ulvaceae) are utilized in various fields, from food supplements to biomedical applications. Ulvan, a polysaccharide obtained from various Ulva species, has shown various biological activities, including antioxidant, anti-inflammatory, anticancer, antibacterial, and antiviral activities. To obtain the polysaccharide ulvan that can be utilized in various fields, it is necessary to understand the critical points that affect its physicochemical nature, the extraction procedures, and the mechanism of action for biological activities. This article discusses the physicochemical properties, extraction, isolation and characterization procedures and benefits in food and biomedical applications of ulvan. In conclusion, ulvan from Ulva sp. has the potential to be used as a therapeutic agent and also as an additional ingredient in the development of tissue engineering procedures.

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Section: Chemistry and Physicochemical Propertiesmentioning

confidence: 99%

Section: Chemistry and Physicochemical Propertiesmentioning

confidence: 99%

Section: Extractionmentioning

confidence: 99%

Section: Extractionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

et al. 2020

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Main Marine Biopolymers for Food Packaging Film Applications

Rodríguez‐Núñez,

Montoya‐Anaya,

Fortiz‐Hernández

et al. 2023

Natural Materials for Food Packaging Application

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Investigations of pectin nanostructures for enhanced percutaneous delivery of fusidic acid

Bostanudin

Arafat

Tan

et al. 2022

J of Applied Polymer Sci

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The study aims to formulate and characterize nanoformulations produced from amphipathically-modified pectin containing fusidic acid, making clear the importance of nanocarrier amphipathicity in boosting drug permeation through the skin. For this purpose, the amphipathically-modified pectin (GBE-PEC) fabrication was achieved following glycidol butyl ether modification via the nucleophilic substitution S N 2 reaction, which was then characterized using thermal analysis, spectroscopic, and chromatographic tools. The materials were subsequently converted into spherical nanostructures (NSs) (size 250-290 nm; zeta potential À25 to À34 mV) via a nanoprecipitation in situ cross-linking approach, demonstrating low viscosity and good colloidal stability under pH 4 conditions. The encapsulated fusidic acid (loading degree 14.9%) was released from GBE-PEC NSs in a more controlled fashion, with release profiles best characterized by the Higuchi model. Interactions with HaCaT cells in vitro demonstrated no apparent cytotoxicity at application relevant conditions, with efficient cellular absorption as evidenced by flow cytometry analysis. Using Franz diffusion cells, GBE-PEC NSs had a 2-fold greater penetration rate through the Strat-M ® membrane than the native pectin NSs. Overall, the study has introduced new insights into the design, fabrication, characterization, and tremendous potential of NSs formulated from GBE-PEC for percutaneous delivery of poorly penetrating actives, which merit further analysis.

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Effects of extraction procedures and plasticizer concentration on the optical, thermal, structural and antioxidant properties of novel ulvan films

Cited by 58 publications

References 47 publications

Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

Ulvan, a Polysaccharide from Macroalga Ulva sp.: A Review of Chemistry, Biological Activities and Potential for Food and Biomedical Applications

Main Marine Biopolymers for Food Packaging Film Applications

Investigations of pectin nanostructures for enhanced percutaneous delivery of fusidic acid

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