Downloads provided by UsageCounts
handle: 10261/229346
[ES] Staphylococcus aureus es una bacteria muy peligrosa para la industria alimentaria debido a su capacidad para formar biofilms; una agrupación de microrganismos difíciles de eliminar por métodos convencionales y para los que se están investigando nuevos tratamientos de desinfección, como los bacteriófagos y las proteínas líticas. En este trabajo se estudió la capacidad del bacteriófago phiIPLA-RODI y la proteina lítica CHAPSH3b para eliminar los biofilms de la cepa S. aureus V329, resistente a antibióticos y buena formadora de biofilms. Se ha evaluado la capacidad antimicrobiana de la mezcla (fago phiIPLARODI más proteína CHAP-SH3b) y de la proteína sola, en dos medios de cultivo (TSB y TSBg). Los resultados obtenidos muestran que el bacteriófago phiIPLA-RODI y la proteína CHAP-SH3b presentan mayor actividad antimicrobiana en el medio TSB, con una reducción significativa (p<0,05) del biofilm. Sin embargo, en el medio TSBg no se produjo una reducción de la biomasa microbiana, lo cual pudo deberse a un descenso del pH más acusado en este medio de cultivo. Esto indica que estos antimicrobianos tienen potencial para su uso como desinfectantes en la industria alimentaria, pero es necesario controlar factores externos como la presencia de nutrientes o el pH del ambiente a tratar.
[EN] Staphylococcus aureus is a dangerous microorganism in the food industry. This bacterium is characterized by its ability to form biofilms; an association of microorganisms that is difficult to eliminate by conventional methods and for which new treatments are being investigated, including the use of bacteriophages and lytic proteins. This work studied the efficacy of phage phiIPLA-RODI and lytic protein CHAP-SH3b to eliminate biofilms formed by S. aureus V329. This strain is characterized by its antibiotic resistance, and high biofilm-forming capacity. The antimicrobial properties of phiIPLA-RODI with protein CHAPSH3b, and of the protein alone, were evaluated in two different media (TSB and TSBg). The results obtained showed that both the phiIPLA-RODI and CHAP-SH3b exhibited a higher antimicrobial activity in TSB, in which a significant biofilm reduction in the attached biofilm was observed. However, no decrease in total biomass was seen in TSBg, which might be explained by the lower pH observed in this medium. This indicates that, even though these antimicrobials have potential as disinfectants for the food industry, it is necessary to control some factors, such as the presence of certain nutrients or pH, in the environment to be treated.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
| views | 184 | |
| downloads | 371 |

Views provided by UsageCounts
Downloads provided by UsageCounts