Добірка наукової літератури з теми "Fractionnement sélectif"
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Статті в журналах з теми "Fractionnement sélectif"
Le Corre, René. "Les divers types de développements domiciliaires et leurs populations de moins de 20 ans." Partie II : Démographie générale 6, no. 3 (October 27, 2008): 203–33. http://dx.doi.org/10.7202/600753ar.
Повний текст джерелаLe Vacon, F., L. Delugin, and M. Maniez. "Étude de quatre trousses de titrage des anticorps antitétaniques pour la sélection des plasmas destinés au fractionnement (LFB)." Transfusion Clinique et Biologique 14, no. 3 (August 2007): 359–68. http://dx.doi.org/10.1016/j.tracli.2007.03.005.
Повний текст джерелаSAUVEUR, B. "Photopériodisme et reproduction des oiseaux domestiques femelles." INRAE Productions Animales 9, no. 1 (February 17, 1996): 25–34. http://dx.doi.org/10.20870/productions-animales.1996.9.1.4032.
Повний текст джерела"P098 Étude Comparative Des Trousses De Sélection Des Plasmas Anti-Tétanique À Destination Du Fractionnement (LFB)." Transfusion Clinique et Biologique 12 (June 2005): S92—S93. http://dx.doi.org/10.1016/s1246-7820(05)80658-5.
Повний текст джерелаДисертації з теми "Fractionnement sélectif"
Zha, Quanqing. "Raffinage sélectif des fibres après fractionnement." Thèse, Université du Québec à Trois-Rivières, 2009. http://depot-e.uqtr.ca/1896/1/030105032.pdf.
Повний текст джерелаRulence, Alexandre. "Mise en œuvre de procédés membranaires pour la séparation sélective de la nisine à partir de surnageants de culture complexes." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. https://pepite-depot.univ-lille.fr/ToutIDP/EDSMRE/2023/2023ULILR034.pdf.
Повний текст джерелаNisin, a bacteriocin produced by lactic acid bacteria (LAB) presents physicochemical properties such as a thermal resistance and an antimicrobial activity against food pathogens bacteria. Nisin is actually the only bacteriocins labelled as Generally Recognized As Safe (GRAS) by the U.S Food and Drug Administration (FDA) and is thus the only bacteriocin used as a natural preservative in the food industry, making it an interesting alternative to the use of chemical preservatives. However, its uses are hampered at industrial scale due to low yields et high cost linked to its production on commercial broth and its purification necessity the combination of low yields techniques such as salting out coupled with chromatography.In this case we investigated in this work the use of food grade by-product produces by the food industry in replacement of costly commercial broth. Several by-products composed of vegetal and fish peptones were tested for the production of nisin. Whey being the most used by-product employed for production of nisin and several bacteriocin, we tested and compared different vegetal and fish proteins hydrolyzates regarding biomass production and nisin yields obtained. Several vegetal and fish protein hydrolyzates were tested with two different strains of Lactococcus lactis in order to optimize nisin production. Results showed a greater nisin production using L.lactis UL 719 when compared to a commercial strain. Results also showed the efficacy of some vegetal and one fish by-product for the production of nisin when compared to whey medium and commercial broth MRS. During this work was also investigating alternatives for nisin purification. Electro- and pressure-driven membrane process were studied for nisin purification and especially ultrafiltration (UF) and electrodialysis for which no literature reported the use of ED for nisin purification. ED was applied to the purification of nisin from a commercial solution and from a cell-free supernatant produced with whey permeate as broth for fermentation. UF was applied to the purification of nisin from a cell-free supernatant and permit to compare UF and ED in this application. This work enables us to demonstrate nisin interaction with ion exchange membrane never reported and enable its purification with purification factor comparable to conventional method actually used. Moreover, we demonstrated the use of ED not only efficient for nisin purification but with the possibility to implement ED in an eco-circularity concept, from nisin production using by-products, to its purification with ED and the recycling of salts from saline effluent produced during nisin salting-out
Bramaud, Catherine. "Optimisation d'un procédé de fractionnement des protéines du lactosérum incluant une précipitation sélective et une séparation par centrifugation ou par membrane." Toulouse 3, 1995. http://www.theses.fr/1995TOU30236.
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