Effects of crude polysaccharides from marine macroalgae on the adhesion and biofilm formation of Pseudomonas aeruginosa and Staphylococcus aureus

Hydrochar from Sargassum muticum: a sustainable approach for high-capacity removal of Rhodamine B dye

“…1 Macroalgae (i.e., multicellular forms) are interesting natural sources of chemical compounds with antioxidant, anti-inammatory, antimicrobial, and anticancer activity, [2][3][4][5] but macroalgae living in transitional ecosystems, such as man-made coastal environments, produce large amounts of waste that must be removed regularly. 2,6 The Lagoon of Venice is a shallow coastal water body affected by an array of anthropogenic factors 7 that may facilitate the settlement and growth of allochthonous (alien) species, able to overwhelm native vegetation. The brown macroalga Sargassum muticum (Phaeophyceae) is considered an alien species in Venice Lagoon, growing mainly on the docks of the historical centre.…”

“…8 The collection of the invasive species and their conversion into bioactive compounds with high added value represents a possible strategy to mitigate their negative impacts on the environment. 6 Biomasses represent an excellent ally of green chemistry thanks to the renewable and biocompatible raw materials, rather than exhaustible, resulting in the reduction of waste. In recent years, natural wastes have become promising renewable raw materials for the production of chemicals, fuels, and energy that are not exhaustible, which has led to the reduction of wastes becoming the main topic of numerous research studies.…”

Macroalgae-Derived Multifunctional Bioactive Substances: The Potential Applications for Food and Pharmaceuticals

“…The polysaccharide of Codium fragile can effectively inhibit the growth of human lung adenocarcinoma A549 cells [ 79 ]. Chaetomorpha aerea water-soluble galactan sulfate extract that consists of 18% arabinose, 24% glucose and 58% galactose show antibacterial activity against three Gram-positive bacteria including Staphylococcus aureus and its minimum inhibitory concentration is 40 mg/mL [ 80 ]. The polysaccharide of Gloipeltis furcata extracted from red algae has anti-tumour and mouse liver protection effects on tumour-bearing mice.…”

Natural products as antivibrio agents: insight into the chemistry and biological activity

“…93 Bioactive compounds from seaweed can be applied in aquaculture health and disease management to control bacterial infection. 94–96 Seaweeds are rich in fatty acid and the mechanism of action of fatty acid as an antibacterial agent through inhibition of the electron transport chain and normal oxidative phosphorylation in bacterial cell membranes. 97 Polysaccharides from seaweed have been examined for the purpose as prebiotic or immunostimulant in aquaculture 98 while red seaweed (Rhodophyta) are good source of antibacterial agents (Table 8).…”