Biochemical Composition and Seasonal Variations of the Madagascar Algae (, Rhodophyta).

Although the density and diversity of seaweeds in Madagascar is particularly high, these resources are underexploited and they are not part of the local population's eating habits. No study has been carried out on the nutritional properties and seasonal variation of species harvested in Madagascar. In this study, was harvested monthly over two years (2021 and 2022) on the northeast coast of Madagascar (Sainte Marie Island).

Sulfated Polysaccharides from Seaweed Strandings as Renewable Source for Potential Antivirals against Virus 1.

virus 1 (HSV-1) remains a prominent health concern widespread all over the world. The increasing genital infections by HSV-1 that might facilitate acquisition and transmission of HIV-1, the cumulative evidence that HSV-1 promotes neurodegenerative disorders, and the emergence of drug resistance signify the need for new antiviral agents. In this study, the in vitro anti-herpetic activity of sulfated polysaccharides (SPs) extracted by enzyme or hot water from seaweeds collected in France and Mexico from stranding events, were evaluated.

An Analysis of the Nutritional and Health Values of (Forsskål) and (Delile)-Two Chlorophyta Collected from the Philippines.

Polysaccharides, lipids and amino acid profiles were investigated to understand the nutritional value of and from the Philippines. The results revealed that both species contain high amounts of proteins (8.8-19.

Bioactivity of compounds secreted by symbiont bacteria of Nudibranchs from Indonesia.

The aims of this work are to isolate bacterial symbionts from nudibranchs and subsequently to determine anti-Methicillin resistant (MRSA), cytotoxicity and anti-Herpes simplex virus type 1 (HSV-1) activities of bio compounds. A total of 15 species of nudibranchs were collected from Karimunjawa and five species from Bali, respectively. A total of 245 bacteria isolates were obtained.

Total phenolic content and biological activities of enzymatic extracts from (Yendo) Fensholt.

Seaweeds are potentially excellent sources of bioactive metabolites that could represent useful leads in the development of new functional ingredients in pharmaceutical and cosmetic industries. In the last decade, new marine bioprocess technologies have allowed the isolation of substances with biological properties. The brown alga (Yendo) Fensholt (Ochrophyta) was enzymatically hydrolyzed to prepare water-soluble extracts by using six different commercially available carbohydrate-degrading enzymes and two proteases.

Enzyme-assisted extraction of bioactive material from Chondrus crispus and Codium fragile and its effect on herpes simplex virus (HSV-1).

Codium fragile and Chondrus crispus are, respectively, green and red seaweeds which are abundant along the North Atlantic coasts. We investigated the chemical composition and antiviral activity of enzymatic extracts of C. fragile (CF) and C.

Synthesis of C3-arylated-3-deazauridine derivatives with potent anti-HSV-1 activities.

A series of 3-deazauridines (3-DU) analogues were synthesized and evaluated in vitro for their antiherpetic activity against HSV-1 on Vero cell lines by cell viability. A first campaign of tests suggested that C3-arylated-3-DU derivatives could constitute a novel family of antiherpetic agents. A second campaign of biological evaluations led to the discovery of two potent anti-HSV-1 agents with comparable activity than acyclovir.

Maturation by LctT is required for biosynthesis of full-length lantibiotic lacticin 481.

In lantibiotic lacticin 481 biosynthesis, LctT cleaves the precursor peptide and exports mature lantibiotic. Matrix-assisted laser desorption ionization-time of flight mass spectrometry revealed that a truncated form of lacticin 481 is produced in the absence of LctT or after cleavage site inactivation. Production of truncated lacticin 481 is 4-fold less efficient, and its specific activity is about 10-fold lower.