Track topics on Twitter Track topics that are important to you
Production and manufacturing methods and the food carrier may influence the properties of probiotic strains, and have an impact on the outcome of clinical intervention studies. The aim of the present study was to establish whether the properties of a specific probiotic strain, Lactobacillus rhamnosus GG, may differ depending on the product and source of the strain. In total, fifteen different L. rhamnosus isolates, among them fourteen labelled as L. rhamnosus GG, were isolated from specific probiotic products. The micro-organisms were phenotypically and genotypically characterised. Their adhesion properties were compared using the human intestinal mucus model, and the ability of the isolates to influence model pathogen adhesion to human colonic mucus was assessed. All L. rhamnosus isolates used were confirmed as members of the species L. rhamnosus. Except the reference strain OL, all L. rhamnosus isolates showed randomly amplified polymorphic DNA, enterobacterial repetitive intergenic consensus and pulsed-field gel electrophoresis profiles identical to that of L. rhamnosus GG (ATCC 53103). All L. rhamnosus isolates showed similar tolerance to acid and were able to bind to human colonic mucus. However, pathogen exclusion by inhibition and competition varied significantly among the different L. rhamnosus isolates and pathogens tested. The results suggest that different sources of the same probiotic may have significantly altered strain properties. This should be considered in in vivo studies on human subjects and also for quality control of probiotic products.
Functional Foods Forum, University of Turku, Itäinen Pitkäkatu 4 A 5, 20014 Turku, Finland.
This article was published in the following journal.
Name: The British journal of nutrition
The use of live probiotic bacteria as food supplement has become popular. Capability of probiotic bacteria to be kept at room temperature becomes necessary for customer's convenience and manufacturer'...
The present work aimed to identify probiotic bacteria from healthy human infant faecal and dairy samples. Subsequently, an assay was developed to evaluate the probiotic properties using comparative ge...
Probiotic lactic acid bacteria are health promoters and have been traditionally consumed without the knowledge that they have beneficial properties. These bacteria mainly involve in secreting antimicr...
The definition of safety and efficacy of food-employed bacteria as well as probiotic strains is a continuous, often unattended, challenge. Proteomic techniques such as 2DE, DIGE and LC/LC-MS/MS are su...
Immunomodulation has been shown to be one of the major functions of probiotic bacteria. This review is presented to provide detailed information on the immunomodulatory properties of probiotics in var...
The aim of the study is to find out if allergic diseases can be prevented buy giving probiotic bacteria to pregnant mothers and their newborn infants
We hypothesize that the administration of a combination of high numbers of probiotic bacteria will maintain normal bowel function and significantly moderate or obviate Immunosuppression As...
Periodontal disease is an infectious disease resulting in inflammation within supporting tissues of the teeth, progressive attachment loss, and bone loss. Epidemiological studies reveal th...
This study is designed to show how well tobramycin inhalation powder works and how safe it is when produced by a modified manufacturing process
We are conducting a study to learn if probiotics, which are live bacteria found in food like yogurt and cheese, will improve symptoms of abdominal pain. Individuals participating in this ...
Manufacturing technology for making microscopic devices in the micrometer range (typically 1-100 micrometers), such as integrated circuits or MEMS. The process usually involves replication and parallel fabrication of hundreds or millions of identical structures using various thin film deposition techniques and carried out in environmentally-controlled clean rooms.
The process in which structural properties of an introduced molecule imitate or simulate molecules of the host. Direct mimicry of a molecule enables a viral protein to bind directly to a normal substrate as a substitute for the homologous normal ligand. Immunologic molecular mimicry generally refers to what can be described as antigenic mimicry and is defined by the properties of ANTIBODIES raised against various facets of EPITOPES on the viral protein. (From Immunology Letters 1991 May;28(2):91-9)
Physiological processes and properties of microorganisms, including ARCHAEA; BACTERIA; RICKETTSIA; VIRUSES; FUNGI; and others.
A genus of gram-positive bacteria in the family Listeriaceae. It has 93% homology to LISTERIA and shares with it many phenotypic properties.
Physiological processes and properties of BACTERIA.
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...
DNA sequencing is the process of determining the precise order of nucleotides within a DNA molecule. During DNA sequencing, the bases of a small fragment of DNA are sequentially identified from signals emitted as each fragment is re-synthesized from a ...