Researcher Jesús Iván Murrilo Alvarez stressed Mexican Padina macroalga properties. (Photo: Cicimar/Stock File/FIS)
Macroalgae antioxidant and antibacterial effect studied
Tuesday, September 06, 2011, 01:50 (GMT + 9)
A team of researchers from the Laboratory of Marine Alga Chemistry at the Interdisciplinary Centre of Marine Science (Cicimar), from the National Polytechnic Institute, showed that compounds of Mexican Padina marine algae fight antibacterial agents and have an antioxidant effect.
According to scientists, this kind of macroalgae collected in different areas of the peninsula of Baja California is able to 'seize' free radicals that cause oxidative stress and DNA damage, deactivation of enzymes and denaturation of proteins in humans.
In addition, the ethanol extract of this alga is able to inhibit the development of pathogenic bacteria, explained Jesús Iván Murillo Alvarez, main author of the study.
During a first stage, the brown alga was subjected to the extraction with ethanol and to trials of antioxidant and antibacterial activity against Staphylococcusaureus, Streptococcuspyogenes and Escherichiacoli.
Components were identified such as mannitol, glycerol and a galactoglycerides – this component has an anticancer and antiviral potential -- added the researcher.
"So far, we have found out that Mexican Padina algae is a source of phenolic compounds, which are really efficient as 'scavenger' agents of free radicals and inhibitors of the growth of some pathogenic bacteria resistant to antibiotics," said Murillo Álvarez.
For the expert, these findings are potentially applicable in the formulation of food products, pharmaceuticals and cosmetics, according to El Informador.
By Analia Murias