Stability of lactobacilli encapsulated in various microbial polymers(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)

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概要

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• Various microbial polymers, namely xanthan gum, gellan gum, pullulan gum and jamilan, were tested as a suitable encapsulating material for Lactobacillus plantarum CRL 1815 and Lactobacillus rhamnosus ATCC 53103. Resulting capsules were also studied for their pH and simulated gastrointestinal conditions tolerance. The morphology of the microcapsules was studied using scanning electron microscopy. pH tolerance was tested at pH 2.0, 3.5, 5.0 and 6.5 over a 6 h incubation period. Simulated gastrointestinal conditions were assayed with simulated gastric and pancreatic juices and simulated bile over a 24 h incubation period. Suspensions of probiotic organisms were used as a control. The results from encapsulation with microbial polymers indicate that mixtures of 1% xanthan gum with 0.75% gellan gum and 1% jamilan with 1% gellan gum were the most suitable for microencapsulation. Results for the pH tolerance tests showed no improvement in the viability of cells in relation to the control, except for pH 2.0 where lactobacilli encapsulated in xanthan:gellan gum (1%:0.75%) prolonged their viability by 6 h exposure. Xanthan:gellan gum (1%:0.75%) was the most effective of the encapsulating materials tested in protecting L. plantarum and L. rhamnosus against simulated bile, improving its viability in 1-2 log CFU when compared with control. The results of this study suggest that microbial polymers are an interesting source of encapsulating material that should be taken into account for prospective studies of probiotic encapsulation for oral delivery applications.

著者

• Nader-macias Maria

  Centro De Referencia Para Lactobacilos (cerela)

• Ramos-cormenzana Alberto

  Departamento De Microbiologia Facultad De Farmacia Universidad De Granada Campus De Cartuja:institut

• Jimenez-pranteda Maria

  Departamento De Microbiologia Facultad De Farmacia Universidad De Granada Campus De Cartuja:ecole Na

• Poncelet Denis

  Ecole Nationale Nantes Atlantique Veterinaire, Agroalimentaire et de l'Alimentation (ONIRIS)

• Arcos Antonio

  Departamento de Estadistica e Investigacion Operativa, Facultad de Farmacia, Universidad de Granada,

• Aguilera Margarita

  Departamento de Microbiologia, Facultad de Farmacia, Universidad de Granada, Campus de Cartuja

• Monteoliva-Sanchez Mercedes

  Departamentao de Microbiologia, Facultad de Farmacia, Universidad de Granada, Campus de Cartuja

• Monteoliva-sanchez Mercedes

  Departamentao De Microbiologia Facultad De Farmacia Universidad De Granada Campus De Cartuja:institu

• Nader-macias Maria

  Centro De Referencia Para Lactobacilos (cerela-conicet)

• Arcos Antonio

  Departamento De Estadistica E Investigacion Operativa Facultad De Farmacia Universidad De Granada Ca

• Poncelet Denis

  Ecole Nationale Nantes Atlantique Veterinaire Agroalimentaire Et De L'alimentation (oniris)

• Aguilera Margarita

  Departamento De Microbiologia Facultad De Farmacia Universidad De Granada Campus De Cartuja:institut

関連論文

• Experimental Administration of Estradiol on the Colonization of Lactobacillus fermentum and Escherichia coli in the Urogenital Tract of Mice
• Stability of lactobacilli encapsulated in various microbial polymers(MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY)

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