Free fatty acids and sterols in the benthic spawn of aquatic molluscs, and their associated antimicrobial properties

Investigation of the antifouling constituents from the brown alga Sargassum muticum (Yendo) Fensholt

“…Those studies confirm the biological activity of palmitic acid observed in our work. The type and amount of free fatty acids can then have a role in the overall defence against microbial colonisation (Benkendorff et al 2005), but we have shown here that a fatty acid can have an effect on other microfouling organisms.…”

“…In conclusion, fatty acid esters can play an important role in the defence and protection against bacterial development, providing they can be present in sufficient quantities on the considered surface (Benkendorff et al 2005). The relevant literature leads us to believe that palmitic acid could be responsible for the antifouling activity observed in the active fraction isolated from S. muticum.…”

RETRACTED: Antimicrobial secondary metabolites from marine gastropod egg capsules and egg masses

“…Activity against a broad spectrum of marine and human pathogenic bacteria is primarily concentrated in the lipophilic layer of solvent extracts of the spawn. Preliminary GC/MS analyses indicate that the predominant secondary metabolites in these extracts are free fatty acids and sterols [25] .…”

“…Encapsulated Anaspidea egg masses contain relatively high concentrations of these unsaturated fatty acids and a lipid mixture modeled on these extracts was strongly bacteriolytic at concentrations down to 0.000 1 mg/ mL. Molluscs unsaturated fatty acids and a lipid mixture egg masses contain relatively high concentrations of these unsaturated fatty acids and a lipid mixture modeled on these extracts was strongly bacteriolytic at concentrations down to 0.000 1 mg/mL [25] . [systematic name: 6-bromo-2-(3-oxo-2,3-dihydro-1H-indol-2-ylidene)-2,3-dihydro-1H-indol-3-one], C16H9BrN 2 O 2 , crystallizes with one disordered molecule in the asymmetric unit about a pseudo-inversion center, as shown by the Br-atom disorder of 0.682 (3):0.318 (3).…”

Nutritional Value and Uses of Microalgae in Aquaculture

“…Cholesterol and other compounds can antagonize antimicrobial features [37], so both composition and concentration of free lipids should be taken into account [38]. The activity of extracts of Phaeodactylum tricornutum against Vibrio spp.…”