Consulta: creatorFacets:"Bakhrouf, Amina"
Registros recuperados: 4
Data/hora: 01/06/2024 09:47:39

Selection of lactic acid bacteria as candidate probiotics and in vivo test on Artemia nauplii
Provedor de dados: 5
Autores: Lamari, Faouzi; Sadok, Khouadja; Bakhrouf, Amina; Gatesoupe, Joel.
Lactic acid bacteria (LAB) were isolated from rotifer cultures in a marine hatchery to search for potential probiotics for marine animals. Fifteen strains were first selected among a total of 55, according to antibacterial activity against Vibrio sp. Among eight strains identified as Lactobacillus casei, four were highly adhesive, suggesting some ability for surface colonization. The other strains were identified as Lactobacillus plantarum, Lactobacillus dextrinicus, and Leuconostoc sp. To validate probiotic potential, Artemia were challenged against pathogenic Vibrio alginolyticus, with or without one of six selected LAB strains. The six strains protected Artemia against the pathogen, to some extent on condition that nutrient enrichment was provided. La....
Tipo: Text
Palavras-chave: 16S rDNA; Antagonism; Artemia; Lactic acid bacteria; Vibrio.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00154/26511/24767.pdf

Comparison of the effects of the dietary addition of two lactic acid bacteria on the development and conformation of sea bass larvae, Dicentrarchus labrax, and the influence on associated microbiota
Provedor de dados: 5
Autores: Lamari, Faouzi; Castex, Mathieu; Larcher, Thibaut; Ledevin, Mireille; Mazurais, David; Bakhrouf, Amina; Gatesoupe, Joel.
Probiotics may have many effects on health and development of fish larvae. One of the most promising is related to spinal conformation, though the mode of action is not clearly understood. The present study attempted to investigate the effects of two strains of lactic acid bacteria on associated microbiota, histological development and gene expression. Sea bass larvae were fed since 5 dph (day post hatch) with either a standard control diet (Diet C), or the same diet supplemented with Pediococcus acidilactici MA18/5M (Diet P), or with an autochthonous strain of Lactobacillus casei (X2; Diet L). The two lactic acid bacteria were incorporated in the diets at the levels of 106 and 107 CFU (colony forming units) g-1 in two consecutive experiments,...
Tipo: Text
Palavras-chave: Fish larvae; Probiotics; Microbiota; Histopathology; Gene expression; DGGE.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00108/21966/19673.pdf

Pulsed-light system as a novel food decontamination technology: a review
Provedor de dados: 5
Autores: Elmnasser, Noura; Guillou, Sandrine; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amina; Federighi, Michel.
In response to consumer preferences for high quality foods that are as close as possible to fresh products, athermal technologies are being developed to obtain products with high levels of organoleptic and nutritional quality but free of any health risks. Pulsed light is a novel technology that rapidly inactivates pathogenic and food spoilage microorganisms. It appears to constitute a good alternative or a complement to conventional thermal or chemical decontamination processes. This food preservation method involves the use of intense, short-duration pulses of broad-spectrum light. The germicidal effect appears to be due to both photochemical and photothermal effects. Several high intensity flashes of broad spectrum light pulsed per second can inactivate...
Tipo: Text
Palavras-chave: Review; Foods; Microorganism; Decontamination technology; Pulsed light.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-7372.pdf

Bacterial inactivation using pulsed light
Provedor de dados: 5
Autores: Elmnasser, Noura; Ritz, Magali; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amina; Federighi, Michel.
Pulsed light is a new method intended for the decontamination of food surfaces using short, high frequency pulses of an intense broad spectrum. The effects of broad spectrum pulsed light on the survival of Listeria monocytogenes Scott A, Listeria monocytogenes CNL, Pseudomonas fluorescens MF37 and Photobacterium phosphoreum SF680 populations on agar and in a liquid medium were investigated during this study. The sterilisation system generated 1.5 J cm(-2) per pulse with eight lamps for 300 mu s. In the case of surface-seeded cells, a 7.8, 8.14 and &gt; 7.14 log reduction was obtained for L. monocytogenes, Ps. fluorescens MF37 and Ph. phosphoreum, respectively, after a single pulse of treatment. Inactivation levels were lower for depth-plated cells: indeed,...
Tipo: Text
Palavras-chave: Efficiency; Inactivation; Bacteria; Treatment; Pulsed light.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3041.pdf