Publications by authors named "Marwa Kraiem"

Article Synopsis
  • The study investigates a new water-soluble polysaccharide called PSP extracted from leaves, using techniques like FT-IR and NMR to identify its chemical structure.
  • HPLC analysis shows that PSP is a heteropolysaccharide made up of two types of monosaccharides, with additional assessments revealing its semi-crystalline nature and various functional properties.
  • The research highlights PSP's antioxidant potential in food preservation, particularly in ground beef, where it significantly inhibits lipid oxidation, microbial growth, and demonstrates stability in color, pH, and moisture.
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In this study, we investigated for the first time the anti-inflammatory and immunomodulatory properties of crude polysaccharide (PSHT) extracted from green marine algae . PSHT exhibited anti-oxidant activity in vitro through scavenging 1, 1-diphenyl-2-picryl hydroxyl free radical, reducing Fe/ferricyanide complex, and inhibiting nitric oxide. PSHT maintained the erythrocyte membrane integrity and prevented hemolysis.

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Article Synopsis
  • Gut injury is linked to increased cell death in intestinal cells, often leading to chronic inflammatory diseases.
  • This study explores the protective effects of polysaccharides from Tunisian red alga (PSGS) against toxic damage caused by hydrogen peroxide (HO) in IEC-6 cells.
  • Results show that PSGS can restore cell viability and normal cell structure, and it appears to protect cells from oxidative stress and apoptosis caused by HO through its unique structural properties.
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