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The objective of this study was to investigate biofilm formation by Lactobacillus fermentum under physiologically relevant shear conditions both in the presence and absence of a food matrix and under simulated conditions of digestion. This was done using batch and flow biofilms of L. fermentum strains under conditions simulating digestion in the human gastrointestinal tract and shear flow using a high throughput platform BioFlux 1000Z system. The putative probiotic strain, PL29, was found to be capable of adhesion and biofilm formation in mucin-coated microfluidic channels under liquid flow conditions mimicking those of the GIT. Based on these in vitro measurements, we conclude that L. fermentum strain PL29 could be an effective probiotic for human consumption.
This article was published in the following journal.
Name: FEMS microbiology letters
Electroactive bacteria such as Geobacter sulfurreducens and Shewanella onedensis produce electrical current during their respiration; this has been exploited in bioelectrochemical systems. These bacte...
Biofilm accumulation in porous media can cause pore plugging and change many of the physical properties of porous media. Engineering bioplugging may have significant applications for many industrial p...
A recent study of red blood cells (RBCs) in shear flow [Lanotte et al., Proc. Natl. Acad. Sci. U.S.A. 113, 13289 (2016)PNASA60027-842410.1073/pnas.1608074113] has demonstrated that RBCs first tumble,...
Sequential co-digestion batch assays were conducted using feedstocks of chicken litter (CL), food waste (FW) and wheat straw (WS) mixed to a C/N ratio of 26.5 and 15% TS. Untreated mixture produced bi...
Flow patterns of a Taylor-Couette-Poiseuille flow were studied at low axial Reynolds and rotational Taylor numbers (Re ≤ 10.5, Ta ≤ 319). The radius ratio of the inner and outer cylinders was 0.80...
The purpose of this study is to determine in situ the bacterial viability, thickness and bacterial diversity of a biofilm formed on different substrates in comparison to a naturally tooth-...
In this study, the investigators will try to confirm if application of probiotic strains isolated from breast milk actually have a beneficial effect on women suffering lactational mastitis...
Assess the accuracy of the sequential measurements by 3D Shear Wave Elastography (SWE) for predicting histological response to neoadjuvant chemotherapy in patients with locally advanced br...
This study evaluates the efficacy of Bifidobacterium breve CECT7263 and the mixture B. breve CECT7263/Lactobacillus fermentum CECT5716 in the treatment of infant colic. Group 1 will receiv...
Does the use of an anti-shear mattress overlay placed on a pre-hospital transport stretcher reduce shear forces and pressure on the skin, and increase patient comfort as compared to standa...
The resistance that a gaseous or liquid system offers to flow when it is subjected to shear stress. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.
A COAGULASE-negative species of STAPHYLOCOCCUS found on the skin and MUCOUS MEMBRANE of warm-blooded animals. Similar to STAPHYLOCOCCUS EPIDERMIDIS and STAPHYLOCOCCUS HAEMOLYTICUS, it is a nosocomial pathogen in NICU settings. Subspecies include generally antibiotic susceptible and BIOFILM negative capitis and antibiotic resistant and biofilm positive urealyticus isolates.
The continuous sequential physiological and psychological changes during ADOLESCENCE, approximately between the age of 13 and 18.
The continuous sequential physiological and psychological maturing of an individual from birth up to but not including ADOLESCENCE.
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 ...