Production of antibacterials from the freshwater alga Euglena viridis (Ehren)

Nutritional Value and Uses of Microalgae in Aquaculture

“…membranes) and is toxic to grazers [40], as well as a precursor of aldehydes with deleterious effects upon such consumers as copepods [41]. Similarly, unsaturated and saturated long chain fatty acids isolated from S. costatum [42] and organic extracts from Euglena viridis [43] display activity against that bacterial genus.…”

The effect of Euglena viridis on immune response of rohu, Labeo rohita (Ham.)

“…have a broad range of medicinal properties, such as antimicrobial [13], anti-mutagenic [14], anti-HIV [15], immunopotentiating [16] and antitumor [17] activity. It has been reported that the unicellular flagellate Euglena gracilis is a rich source of b-1,3, glucan and has applications in human and veterinary medicine as an immunostimulant and immunopotentiator [18].…”

Metabolites from freshwater aquatic microalgae and fungi as potential natural pesticides

“…This shows the ability to respond to the extremely high and competitive interactions that exists in the microbial communities. In particular, it seems that the secondary metabolites of green microalgae show great potential in the search for compounds with plaguicidal application, because they are not common producers of hepatic or neurotoxins like cyanobacteria, examples are Euglena (Zimba et al 2010;Das et al 2005) or Haematococcus (Rodríguez-Meizoso et al 2010). Furthermore, some cyanobacteria have proven to be important producers of non peptide compounds, whose toxicity is not comparable to the hepato or neurotoxins as bioactive fatty acids from species of Oscillatoria (Kiviranta and Abdel-Hameed 1994;Tellez et al 2001).…”

“…Moderate antimicrobial activity has been observed for green microalgae such as Euglena viridis (Das et al 2005) and Spirogyra varians (Cannell et al 1988). From S. varians was identified pentagalloylglucose (105) as responsible of its antimicrobial effect against B. subtilis and Micrococcus flavus.…”