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Dissertations / Theses on the topic 'Bifidobacterium'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Васильєва, К. О., та І. М. Волошина. "Біотехнологічні аспекти Bifidobacterium". Thesis, Київський національний університет технологій та дизайну, 2020. https://er.knutd.edu.ua/handle/123456789/15599.

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2

Bahaka, Driss. "Analyse phenotypique et genotypique des souches du genre bifidobacterium appartenant ou apparentees aux especes b. Breve, b. Infantis et b. Longum." Lille 2, 1993. http://www.theses.fr/1993LIL2P254.

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3

Grill, Jean-Pierre. "Étude du potentiel probiotique de bactéries du genre Bifidobacterium : purification et caractérisation de la fructose 6 phosphate phosphocetolase de Bifidobacterium longum et Bifidobacterium animalis." Nancy 1, 1995. http://www.theses.fr/1995NAN10050.

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Cette étude a permis de montrer les effets de certaines souches de bactéries appartenant au genre Bifidobacterium sur la flore intestinale, les nitrites, les nitrosamines et les sels biliaires. L’enzyme impliquée dans la déconjugaison des sels biliaires a été purifiée et caractérisée pour la souche de Bifidobacterium longum BB536. La fructose 6 phosphate phosphocétolase a été purifiée et caractérisée chez différentes souches de bifidobactéries. Des séquences en acides aminés de cette protéine ont ainsi été obtenues pour Bifidobacterium longum et Bifidobacterium animalis

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4

Oberg, Taylor S. "Characterization of the Hydrogen Peroxide Stress Responses of Bifidobacterium longum and Bifidobacterium animalis subsp. Lactis." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2037.

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Probiotics are living organisms which exert a beneficial health effect when consumed in sufficient numbers. Consumer interest in probiotics has increased dramatically in recent years prompting an increase in production and development of functional foods. One major problem is the decreased viability of probiotic bacteria during functional food production and storage and subsequent digestion due to environmental stresses. The most common probiotic strains belong to the genus Lactobacillus or Bifidobacterium. Due to the anaerobic nature of these bacteria, they lack the required defense mechanism

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5

Nunoura, Naoki. "Studies on Bifidobacterium breve β-Glucosidase". Kyoto University, 1997. http://hdl.handle.net/2433/202382.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第6899号<br>農博第917号<br>新制||農||739(附属図書館)<br>学位論文||H9||N3023(農学部図書室)<br>16016<br>UT51-97-H283<br>京都大学大学院農学研究科食品工学専攻<br>(主査)教授熊谷英彦, 教授木村光, 教授清水昌<br>学位規則第4条第1項該当

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6

Hassi, Chafiq. "Contribution a l'etude d'utilisation de la n-acetyl-beta-d-glucosamine par b. Bifidum atcc 15696 et b. Animalis atcc 25527 : preparation, purification et caracterisation de leur n-acetyl-beta-d-glucosaminidase." Lille 2, 1994. http://www.theses.fr/1994LIL2P253.

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7

Mizerovská, Lucie. "Selektivní izolace bakterií rodu Bifidobacterium z potravin." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2012. http://www.nusl.cz/ntk/nusl-216880.

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Probiotic lactic acid bacteria (LAB) are very often used in food procesing industry, such as milk products, cheese and fermentsd salami production in nova days. In diploma thesis were tested symbiotic food supplements from different producers. Bacterial DNA was isolated from crude cell lysates of six food suplements by magnetic particles P(HEMA-co-GMA). PCR-ready DNAs were isolated. from all products The detection of Bifidobacterium bacteria identified by PCR was in agreement with those declared by the manufacturers. Magnetic particles with immobilized antibodies against Bifidobacterium were u

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8

Orrhage, Kerstin. "Impact of Bifidobacterium longum and Lactobacillus acidophilus on the intestinal microflora and bioavailability of some food mutagens /." Stockholm, 1999. http://diss.kib.ki.se/1999/91-628-3687-0/.

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9

Appourchaux, Laurence. "Purification et propriétés des béta-D-galactosidases des N-acétyl-béta-D-glucosaminidases de Bifidobacterieum bifidum souche AA 2/2." Lille 1, 1989. http://www.theses.fr/1989LIL10164.

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Quatre activités exoglycosidasiques de bifidobacterium bifidum souche AA/22 ont été étudiées. Il s'agit des activités: béta-galactosidase, n-acétyl-beta-hexosaminidase, alpha-neuraminidase et alpha-fucosidase. Ces activités sont endo-cellulaires, leur extraction est réalisée par ultra-sons. Le schéma de purification suivi nous a permis d'obtenir six fractions. Trois fractions ne contenant qu'une seule activité : une alpha-neuraminidase et deux beta-galactosidases. Trois fractions possèdent chacune deux activités : une béta-galactosidase et une alpha-fucosidase ; une alpha-neuraminidase et une

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10

Boutry, Etienne. "Exoglycosidases de Bifidobacterium bifidum souche AA 2/2." Lille 1, 1989. http://www.theses.fr/1989LIL10163.

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La production de beta-d-galactosidase (EC. 3. 2. 1. 23), de n-acetyl-beta-d-glucosaminidase (EC. 3. 2. 1. 30), de neuraminidase (EC. 3. 2. 1. 18) et d'alpha-l-fucosidase (EC. 3. 2. 1. 51) a été optimisée par fermentation. La bactérie anaérobie Bifidobacterium bifidum souche AA/22 a été cultivée en milieu liquide renfermant par litre : 37 g d'un extrait sec de cerveau-cœur, 10 g de glucose et des facteurs bifidigènes (1 g de gynolactose ou 66 ml de lait de femme). La fermentation est conduite sous N2/CO2 à 37°C et à ph 6,8. L'extraction des systèmes enzymatiques par une technique aux ultra-sons

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11

Arany, Catherine Beatrice \d 1968. "Enhanced recovery of injured and noninjured cells of Bifidobacterium species from water and dairy products /." This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-12162009-020131/.

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12

Trindade, Marla. "Studies on carbohydrate metabolism in Bifidobacterium : isolation, characterisation and regulation of a sucrose-utilisation gene cluster in Bifidobacterium lactis." Doctoral thesis, University of Cape Town, 2002. http://hdl.handle.net/11427/4341.

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Bibliography: leaves 167-195.<br>The primary aim of the project was, therefore, to analyse carbohydrate metabolism for the identification of and/or the development of prebiotic substrates, and to provide a molecular characterisation for their utilisation. Several carbohydrates were tested for their ability to support the growth of bifidobacteria as a sole carbohydrate source. The four bifidobacterial strains, B. breve, B. bifidum, B. longum and B. lactis were able to utilise a wide variety of substrates.

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13

Fachin, Luciano. "Contagem de Bifidobacterium animalis Bb 12 e efeito da adição de Propionibacterium freudenreichii PS-1 e do tratamento termico do leite sobre o desenvolvimento de Bifidobacterium animalis Bb 12 em iogurte." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/255805.

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Orientadores: Walkiria Hanada Viotto, Mieko Kimura<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos<br>Made available in DSpace on 2018-08-04T02:47:09Z (GMT). No. of bitstreams: 1 Fachin_Luciano_D.pdf: 623874 bytes, checksum: 39038138708fcb9d94eb3e5320272cbb (MD5) Previous issue date: 2005<br>Resumo: A produção de iogurtes com Bifidobacterium spp. tem crescido muito nas últimas décadas visando a produção de alimentos funcionais. Contudo, para que o produto possa apresentar tais propriedades, tem sido alegado que o número mínimo de células viáveis

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14

Corneau, Nathalie. "Analyse moléculaire de trois plasmides de Bifidobacterium longum." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/MQ55844.pdf.

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15

Gann, Reed N. "Host Signaling Response to Adhesion of Bifidobacterium infantis." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/586.

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Investigations of the molecular binding partners of the probiotic bacterium Bifidobacterium longum subspecies infantis (B. infantis) and the pathogen Salmonella enterica subspecies enterica serovar Typhimurium LT2 (Salmonella ser. Typhimurium) found that these two very different bacteria bind gangliosides. However, these organisms lead to completely different host health outcomes when present in the gut. B. infantis is the founding microbial population in the intestinal tract of breast-fed infants. S. typhimurium is the most important food-borne pathogen that results in humans. This study used

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16

Centanni, Manuela <1984&gt. "Bifidobacterium - Human Host Interaction: Role of Human Plasminogen." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4677/1/Centanni_Manuela_tesi.pdf.

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Bifidobacterium is an important genus of the human gastrointestinal microbiota, affecting several host physiological features. Despite the numerous Bifidobacterium related health-promoting activities, there is still a dearth of information about the molecular mechanisms at the basis of the interaction between this microorganism and the host. Bacterial surface associated proteins may play an important role in this interaction because of their ability to intervene with host molecules, as recently reported for the host protein plasminogen. Plasminogen is the zymogen of the trypsin-like serine pro

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17

Centanni, Manuela <1984&gt. "Bifidobacterium - Human Host Interaction: Role of Human Plasminogen." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4677/.

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Bifidobacterium is an important genus of the human gastrointestinal microbiota, affecting several host physiological features. Despite the numerous Bifidobacterium related health-promoting activities, there is still a dearth of information about the molecular mechanisms at the basis of the interaction between this microorganism and the host. Bacterial surface associated proteins may play an important role in this interaction because of their ability to intervene with host molecules, as recently reported for the host protein plasminogen. Plasminogen is the zymogen of the trypsin-like serine pro

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18

Oliveira, Luiz Fernando Ferreira de. "Administração tópica do probiótico Bifidobacterium animalis subsp. lactis HN019 reduz a destruição tecidual periodontal em ratos com periodontite experimental: estudo histológico, microtomográfico, imunológico e microbiológico." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/58/58132/tde-24052016-092031/.

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O objetivo deste estudo foi avaliar os efeitos da administração tópica de bactérias probióticas do gênero Bifidobacterium na doença periodontal experimental em ratos. Foram utilizados 32 ratos divididos nos seguintes grupos: CT (controle), DPT (doença periodontal), CT-HN019 (controle + probiótico) e DPT-HN019 (doença periodontal + probiótico). No dia 0 do experimento, a doença periodontal foi induzida nos animais dos grupos DPT e DPT-HN019 por meio da colocação de ligaduras ao redor dos primeiros molares inferiores. Nos Grupos CT-HN019 e DPT-HN019, 2 mL de uma suspensão contendo 109 unidades f

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19

Jayamanne, Vijith S. "Survival of probiotic Bifidobacterium spp. in fermented milk products." Thesis, University of Surrey, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435219.

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20

Liserre, Alcina Maria. "Microencapsulação de Bifidobacterium lactis para aplicação em leites fermentados." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/9/9131/tde-26042016-181206/.

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Bifidobacterium spp. são microrganismos probióticos que podem ser incorporados em produtos alimentícios. Entretanto, para que seus efeitos benéficos à saúde humana ocorram, é necessário que o número de células viáveis na hora do consumo seja, no mínimo, 106UFC/g. As bifidobactérias são sensíveis à elevada acidez e, por isso, torna-se necessária a busca por métodos que possam proteger a integridade da célula, sendo um deles a microencapsulação. Em uma primeira etapa do trabalho, Bifidobacterium lactis foi encapsulado em micropartículas de alginato e alginato modificado (alginatoquitosana, algin

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21

Collado, Amores María Carmen. "Caracterización de cepas del género Bifidobacterium con carácter probiótico." Doctoral thesis, Universitat Politècnica de València, 2008. http://hdl.handle.net/10251/1907.

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El concepto de alimento funcional se emplea para describir a aquellos alimentos adicionados con ingredientes de diversas clases y orígenes que pueden ejercer efectos beneficiosos sobre quien los ingiere. Este concepto surgido en Japón ha ido popularizándose y expandiéndose hacia otros continentes como Europa fundamentalmente debido a la preocupación sobre la nutrición, la dieta y la salud de la sociedad actual. Los probióticos representan una gran área dentro de los alimentos funcionales y se ha intensificado la investigación para desarrollar productos probióticos y profundizar en el conocimie

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22

Freitas, Camila Maria de. "Efeito da administração de bactérias ácido-láticas sobre o ganho de peso de leitões na maternidade." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-02122008-154629/.

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O experimento foi conduzido nas instalações de gestação e maternidade da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, em Pirassununga, para avaliar o efeito da administração de bactérias probióticas ácido-láticas sobre o ganho de peso de um determinado grupo de leitões logo após o nascimento e antes da primeira mamada do colostro. Para efeito de comparação, criou-se outro grupo de leitões placebo que receberam água destilada em igual volume e manejo. Todos os animais foram pesados semanalmente desde o nascimento até o desmame ocorrido com 21 dias de idade. Os int

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23

Carrasco, Leiva Carolina Andrea. "Diversidad de especies y genotipos de bifidobacterium en saliva y caries de niños chilenos de 7 a 11 años de edad con y sin caries." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/141803.

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Trabajo de Investigación Requisito para optar al Título de Cirujano Dentista<br>INTRODUCCIÓN: La cavidad oral posee una microbiota residente característica, la cual, en un estado de equilibrio, coexiste en armonía con el hospedero y es beneficiosa para el mismo. Esta homeostasis bacteriana puede verse alterada al ser perturbado el hábitat, provocando un desequilibrio de la microbiota residente, lo que induce al desarrollo de patógenos oportunistas que facilitan el progreso de la caries dental, que corresponde a un proceso patológico mediado por bacterias, de origen multifactorial, altame

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24

Stievenard, Sylvain. "Hydrolyse industrielle du lactose : mise au point au stade laboratoire d'un réacteur à lactase immobilisée." Lille 1, 1986. http://www.theses.fr/1986LIL10172.

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L'existence d'une activité lactasique chez un micro-organisme non pathogène nous a conduit à envisager la mise au point d'un procédé d'hydrolyse industrielle du lactose contenu dans le lait et les lactosérums. Notre démarche s'est appuyée sur plusieurs points : le procédé doit être facile à mettre en oeuvre industirellement et doit pouvoir se réaliser en continu. Il doit être en outre peu coûteux et conforme à la législation. La purification de la lactase est procédé qui s'est révélé être trop onéreux et déstabilisateur de l'activité enzymatique. Les cellules de ce microorganisme ont été inclu

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Mangin, Irène. "Typage moléculaire de souches du genre bifidobacterium : polymorphisme génétique intraspécifique et intragénérique." Nancy 1, 1994. http://docnum.univ-lorraine.fr/public/SCD_T_1994_0123_MANGIN.pdf.

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L'identification des espèces ou des souches bactriennes repose sur la mise en évidence du polymorphisme génétique interspécifique et intra générique. Le but de ce travail a donc été de rechercher diverses méthodes de révélation du polymorphisme génétique, applicables au genre bifidobacterium. La réalisation de profils de restriction a d'abord permis une caractérisation des différentes souches du laboratoire, comprenant des souches de collection, des souches industrielles ainsi que des souches d'origine humaine provenant d'une expérience clinique. Cette première méthode révèle un polymorphisme

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26

Bravo, Caba Marta Fernanda. "Presencia de factores de virulencia en miembros de la familia Bifidobacteriaceae aisladas desde cavidad oral de niños chilenos de 7 a 11 años." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/141599.

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Trabajo de Investigación Requisito para optar al Título de Cirujano Dentista<br>INTRODUCCIÓN: La caries dental es una enfermedad crónica compleja y multifactorial, de componente infeccioso y de alta prevalencia en el ser humano. Se desarrolla producto de la interacción en el tiempo de una producción de ácidos a partir del metabolismo bacteriano, los dientes y la saliva. La microbiota que interactúa en este proceso es muy diversa. Estudios recientes han identificado a miembros de la familia Bifidobacteriaceae como microorganismos participantes de este proceso. Estos estudios son, en su ma

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27

Adhikari, Koushik. "Viability and metabolic activity of encapsulated bifidobacteria in yogurt /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9999266.

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28

Cho, Young-Jae. "Investigation of the functionality of probiotic fortified soy beverages : in vitro and and in vivo studies /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3144409.

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29

Meyer, Catherine. "Les bifidobacteries : proprietes, role nutritionnel, applications dietetiques." Strasbourg 1, 1992. http://www.theses.fr/1992STR15019.

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30

Hung, Ming-Ni 1962. "Biochemical and genomic analysis of -galactosidases from Bifidobacterium infantis HL96." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36953.

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Among 29 strains of bifidobacteria studied as sources of beta-galactosidase enzyme, Bifidobacterium infantis HL96 showed the highest hydrolytic and transgalactosylic activities. This strain grew well in a MRS medium containing various sugars including lactose, and produced three beta-galactosidases (termed beta-Gal I, II, III).<br>Two genes, beta-galI and beta-galIII, located on 4.6 and 4.4 kb DNA fragments respectively, were cloned into E. coli, and the nucleotide sequences were determined. The 3,069 by-long beta-galI, encoded a polypeptide with a Mr of 113 kDa. A putative ribosome-binding si

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Krzewinski, Frédéric. "Transport et métabolisme des saccharides chez Bifidobacterium bifidum SM 20082." Lille 1, 1997. http://www.theses.fr/1997LIL10005.

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Nous avons etudie la capacite de bifidobacterium bifidum dsm 20082 a assimiler des saccharides. Cette etude a ete realisee en utilisant la technique de microcalorimetrie. Les resultats obtenus montrent que bifidobacterium bifidum est capable de croitre sur milieu riche (tpy) en presence ou en absence de saccharides. Sur milieu semi-synthetique (garches modifie), seules les n-acetylhexosamines permettent une croissance bacterienne, elles sont donc assimilees comme seule source de carbone. De plus, la quantite de chaleur degagee est proportionnelle a la consommation du saccharide. Les facteurs b

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Липовська, Вікторія Вікторівна, Виктория Викторовна Липовская, Viktoriia Viktorivna Lypovska та К. Ю. Ковальчук. "Зміни вмісту Bifidobacterium bifidum у хворих на шигельоз та сальмонельоз". Thesis, Видавництво СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/4716.

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У даний час захворюваність на шигельоз та сальмонельоз серед дітей посідає одне з провідних місць у інфекційній патології. У зв‘язку з цим надзвичайно важливим є питання епідеміологічного моніторингу, який включав би не тільки спостереження за циркуляцією основних збудників кишкових інфекцій, вивчення змін їх біологічних, культуральних та лізабельних властивостей, але й оцінював би їх вплив на мікробіоценоз шлунково-кишкового тракту. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/4716

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Tu, Liwen. "Cloning and sequence analysis of multiple genes from Bifidobacterium infantis /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137758.

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Tacconi, Stefano <1961&gt. "Rapporti fra fattori ambientali e proteine di parete in Bifidobacterium." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2041/1/tacconi_stefano_tesi.pdf.

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The normal gut microbiota has several important functions in host physiology and metabolism, and plays a key role in health and disease. Bifidobacteria, which are indigenous components of gastrointestinal microbiota, may play an important role in maintaining the well-being of the host although its precise function is very difficult to study. Its physiological and biochemical activities are controlled by many factors, particularly diet and environment. Adherence and colonization capacity are considered as contributing factors for immune modulation, pathogen exclusion, and enhanced contact w

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Tacconi, Stefano <1961&gt. "Rapporti fra fattori ambientali e proteine di parete in Bifidobacterium." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2009. http://amsdottorato.unibo.it/2041/.

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The normal gut microbiota has several important functions in host physiology and metabolism, and plays a key role in health and disease. Bifidobacteria, which are indigenous components of gastrointestinal microbiota, may play an important role in maintaining the well-being of the host although its precise function is very difficult to study. Its physiological and biochemical activities are controlled by many factors, particularly diet and environment. Adherence and colonization capacity are considered as contributing factors for immune modulation, pathogen exclusion, and enhanced contact w

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36

Satti, Maria Altaf <1991&gt. "Comparative Analysis of Genus Bifidobacterium: Insight into its Host Adaptation." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9892/1/Doctoral%20Thesis.pdf.

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Bifidobacteria is amongst one of the health promoting bacteria. The role of this important probiotic genera can be elucidated by understanding its genome. Comparative analysis of the whole genus of these bacteria can reveal their adaptation to a diverse host range. This study comprises of four research projects. In the first study, a reference library for genus Bifidobacterium was prepared. The core genes in each genus were selected based on a newly proposed statistical definition of core genome. Comparative analysis of Bifidobacterium with another probiotic genus Lactobacillus revealed the

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Martin, Laurence. "Modulation des propriétés des cellules dendritiques humaines par un surnageant de bactérie probiotique : induction de lymphocytes T régulateur." Thesis, Tours, 2008. http://www.theses.fr/2008TOUR3107.

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Les cellules de notre système immunitaire différencient les antigènes du Soi, envers lesquels elles ne doivent pas engendrer de réponse immunitaire effectrice, et les pathogènes qu’elles doivent éliminer. Outre les antigènes du Soi, le système immunitaire doit également tolérer des antigènes de l’environnement non pathogènes comme les aliments et les bactéries de la flore commensale qui colonisent l’intestin. Au sein de cette flore se trouvent des bactéries « probiotiques » dont certaines souches ont un effet préventif et/ou curatif dans le cadre d’allergies, de maladies inflammatoires ou même

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Kim, Geun-Bae 1966. "Biochemical and genomic analysis of bile salt hydrolases from Bifidobacterium strains." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=84272.

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Three different types (A, B, and C) of bile salt hydrolase from different Bifidobacterium strains revealed during the purification study showed the type-specific characteristics in their electrophoretic migration and elution profiles from anion exchange and hydrophobic interaction chromatographic columns. The subunit molecular mass estimated by SDS-PAGE was around 35 kDa and the native molecular mass in all types of BSH was estimated to be between 130 and 150 kDa by gel filtration chromatography, indicating that all BSH enzymes have tetrameric structure. From the isoelectric focusing, p

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Savard, Patricia. "L'expression des gènes responsables du catabolisme de l'arabinoxylane chez Bifidobacterium longum." Thesis, Université Laval, 2007. http://www.theses.ulaval.ca/2007/24549/24549.pdf.

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Audy, Julie. "Approche transcriptionnelle pour l'étude de gènes chez Bifidobacterium longum CRC 002." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25448/25448.pdf.

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Bull, Matthew J. "Molecular genetic characterisation of probiotic bacteria : Lactobacillus acidophilus and Bifidobacterium species." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/53985/.

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Over time and concurrent development of methods to identify and characterise bacteria, the lactic acid bacteria (LAB) have undergone multiple taxonomic revisions. As a result of the revisionary nature of LAB taxonomy, the historical characterisation of Lactobacillus acidophilus has struggled with misidentification and misrepresentation. Now however, due to its global use in food products for both flavour and probiotic effect, L. acidophilus is now one of the most well physiologically characterised Lactobacillus species. Bifidobacterium bifidum and Bifidobacterium animalis subsp. lactis are als

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Martinez, Fabio Andres Castillo. "Produção de bacteriocina por Bifidobacterium lactis a partir de leite desnatado." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/9/9135/tde-16012014-134005/.

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Existe um número muito limitado de estudos referentes à produção de componentes antimicrobianos ou bacteriocinas produzidas por espécies de bifidobactérias. Nesse âmbito, o objetivo deste trabalho foi avaliar a produção de bifidobacteriocina em leite desnatado (LD). Para tanto, o estudo foi dividido em três etapas. A primeira etapa constituiu na preparação dos meios de cultura Man, Rogosa e Sharpe (MRS), Bifidus Selective Medium (BSM) e LD suplementado com 1% (p/v) de Tween 80 (T80), Inulina (I) ou Extrato de levedura (YE). Nesta etapa, os processos fermentativos foram conduzidos em shaker, na

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Stenico, Verena <1983&gt. "Genus Bifidobacterium: taxonomy studies and gene expression analysis on folate pathway." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6604/1/Stenico_Verena_tesi.pdf.

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Folates (vitamin B9) are essential water soluble vitamins, whose deficiency in humans may contribute to the onset of several diseases, such as anaemia, cancer, cardiovascular diseases, neurological problems as well as defects in embryonic development. Human and other mammals are unable to synthesize ex novo folate obtaining it from exogenous sources, via intestinal absorption. Recently the gut microbiota has been identified as an important source of folates and the selection and use of folate producing microorganisms represents an innovative strategy to increase human folate levels. The aim

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Stenico, Verena <1983&gt. "Genus Bifidobacterium: taxonomy studies and gene expression analysis on folate pathway." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6604/.

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Folates (vitamin B9) are essential water soluble vitamins, whose deficiency in humans may contribute to the onset of several diseases, such as anaemia, cancer, cardiovascular diseases, neurological problems as well as defects in embryonic development. Human and other mammals are unable to synthesize ex novo folate obtaining it from exogenous sources, via intestinal absorption. Recently the gut microbiota has been identified as an important source of folates and the selection and use of folate producing microorganisms represents an innovative strategy to increase human folate levels. The aim

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Souza, Cínthia Hoch Batista de. "Desenvolvimento de margarina probiótica e simbiótica: viabilidade do probiótico no produto e resistência in vitro." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/9/9133/tde-17112010-174506/.

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O presente trabalho teve como objetivo verificar a viabilidade da cepa probiótica Bifidobacterium animalis subsp. lactis Bb-12 incorporado em margarina, suplementada com inulina, concentrado protéico de soro (WPC) e concentrado de caseína (CMP), bem como avaliar as características do produto e a resistência do probiótico às condições simuladas do trato gastrintestinal humano. Foram produzidos 7 diferentes tipos de margarinas de mesa (60% de lipídios: 60 % de óleo de palma + 40% de óleo de canola), empregando-se um modelo de mistura, onde inulina, WPC e CMP foram as variáveis estudadas. Uma for

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Inturri, Rosanna. "Caratterizzazione microbiologica di ceppi di Bifidobacterium spp. e analisi chimica e biologica di un esopolisaccaride prodotto." Doctoral thesis, Università di Catania, 2016. http://hdl.handle.net/10761/3921.

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Lo scopo della ricerca è stato quello di studiare le caratteristiche microbiologiche di ceppi di Bifidobacterium spp. isolati da feci umane e animali e da prodotti probiotici e quello di investigare le proprietà chimico-fisiche e alcune possibili attività biologiche dell esopolisaccaride (EPS) prodotto da un ceppo di Bifidobacterium longum . Gli studi sul profilo metabolico dei ceppi isolati, eseguiti utilizzando sistemi standardizzati, confermavano soltanto per 10 ceppi la probabile appartenenza al genere Bifidobacterium spp. I ceppi caratterizzati come probabili bifidobatteri erano saggi

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Gorse, Christophe. "Etude expérimentale des translocations bactériennes lors d'aplasies médullaires : rôle de Saccharomyces boulardii et de Bifidobacterium." Montpellier 1, 1992. http://www.theses.fr/1992MON11037.

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Mullié-Demailly, Catherine. "Contribution a l'etude de l'innocuite et de la specificite d'action de bifidobacterium breve c50 et de ses produits de fermentation (doctorat : microbiologie)." Lille 2, 1999. http://www.theses.fr/1999LIL2P253.

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Khattabi, Abdelkrim. "Contribution a la classification et a l'ecologie de souches d'origine humaine appartenant au genre bifidobacterium : mise au point d'un systeme d'identification numerique." Lille 2, 1993. http://www.theses.fr/1993LIL2P253.

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Ravenscroft, John Elmer. "Evaluation of survival and recovery characteristics of bifidobacteria as indicators of fecal pollution of water." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1613.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xi, 138 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 133-137).

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