%0 Journal Article
%T Antimicrobial and antifouling activities achieved by extracts of seaweeds from Gulf of California, Mexico Actividades antimicrobiana y anti-incrustante obtenidas de los extractos de algas marinas del Golfo de California, M¨¦xico
%A Ruth Noem¨ª ¨¢guila-Ram¨ªrez
%A Anabel Arenas-Gonz¨¢lez
%A Claudia Judith Hern¨¢ndez-Guerrero
%A B¨¢rbara Gonz¨¢lez-Acosta
%J Hidrobiol¨®gica
%D 2012
%I Universidad Aut¨®noma Metropolitana, Unidad Iztapalapa
%X Six species of common seaweed extracts were tested in laboratory assays: Dictyota flabellata, Padina concrescens, Laurencia johnstonii, Gymnogongrus martinensis, Ulva lactuca and Codium fragile for potential industrial applications through evaluation of the antibacterial activity against pathogenic bacteria (5 strains) and the antifouling potency against the growth of key species of marine colonisers (7 bacteria, 5 fungi and 11 microalgae). The organic extract of L. johnstonii, U. lactuca and D. flabellata have bacterial antibiosis. The ethereal extracts were more active in comparison with buthanol extracts against the bacterial strain Staphylococcus aureus. The best antifouling results were obtained with U. lactuca and L. johnstonii(0.1-1 ¦Ìg ml-1) against all strains tested. C.fragile exhibited significant antifouling activity with minimum inhibitory concentration (MIC) between 1-10 ¦Ìg ml-1 against marine microalgae Rhodosorus magnei, Neorhodella cyanea and Prymnesium calathiferum. Se analizaron seis especies de macroalgas comunes del Golfo de California: Dictyota flabellata, Padina concrescens, Laurencia johnstonii, Gymnogongrus martinensis, Ulva lactuca y Codium fragile para determinar su potencial aplicaci¨®n industrial, a trav¨¦s de la evaluaci¨®n de la actividad antibacteriana frente a bacterias pat¨®genas (5 cepas), y el potencial anti-incrustante como inhibidores de crecimiento de especies colonizadoras en ambientes marinos (7 bacterias, 5 hongos y 11 microalgas). Los extractos org¨¢nicos de L. johnstonii, U. lactuca y D. flabellata presentaron antibiosis bacteriana. Los extractos et¨¦reos fueron m¨¢s activos en comparaci¨®n con los extractos de butanol frente a la cepa bacteriana Staphylococcus aureus. Los mejores resultados de actividad anti-incrustante se obtuvieron con U. lactuca y L. johnstonii (0.1-1 ¦Ìg ml-1) frente a todas las cepas probadas. C. fragile mostr¨® una significativa actividad anti-incrustante, presentando una concentraci¨®n m¨ªnima inhibitoria (MIC) entre 1-10 ¦Ìg ml-1, frente a las microalgas marinas Rhodosorus magnei, Neorhodella cyanea y Prymnesium calathiferum.
%K Antibacterial
%K anti-incrustante
%K Golfo de California
%K bioactividad
%K macroalgas
%K Antibacterial
%K antifouling
%K Gulf of California
%K bioactivity
%K seaweeds
%U http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0188-88972012000100002