Cell surface properties affect colonisation of raw milk by lactic acid bacteria at the microstructure level

2010 ◽  
Vol 43 (6) ◽  
pp. 1594-1602 ◽  
Author(s):  
Mai Huong Ly-Chatain ◽  
Mai Linh Le ◽  
Mai Le Thanh ◽  
Jean-Marc Belin ◽  
Yves Waché
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Cell Surface ◽  
Surface Properties ◽  
Raw Milk ◽  
Cell Surface Properties

scholarly journals How Capsular Exopolysaccharides Affect Cell Surface Properties of Lactic Acid Bacteria

2020 ◽  
Vol 8 (12) ◽  
pp. 1904
Author(s):  
Carsten Nachtigall ◽  
Cordula Vogel ◽  
Harald Rohm ◽  
Doris Jaros
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Cell Surface ◽  
Surface Properties ◽  
Cell Damage ◽  
Cell Surface Hydrophobicity ◽  
Textural Properties ◽  
Fermented Foods ◽  
Cell Surface Properties ◽  
The Impact

Some lactic acid bacteria are able to produce exopolysaccharides that, based on localization, can be distinguished in free and capsular or cell-bound exopolysaccharides (CPS). Up to now, the former were the focus of current research, mainly because of the technofunctional benefits they exhibit on fermented dairy products. On the other hand, CPS affect the surface properties of bacteria cells and thus also the textural properties of fermented foods, but data are very scarce. As the cell surface properties are strongly strain dependent, we present a new approach to investigate the impact of CPS on cell surface hydrophobicity and moisture load. CPS positive and negative Streptococcus thermophilus and Weissella cibaria were subjected to ultrasonication suitable to detach CPS without cell damage. The success of the method was verified by scanning electron and light microscopy as well as by cultivation experiments. Before applying ultrasonication cells with CPS exhibiting an increased hydrophilic character, enhanced moisture load, and faster water adsorption compared to the cells after CPS removal, emphasizing the importance of CPS on the textural properties of fermented products. The ultrasonic treatment did not alter the cell surface properties of the CPS negative strains.

Indigenous Dadih Lactic Acid Bacteria: Cell-Surface Properties and Interactions with Pathogens

2007 ◽  
Vol 72 (3) ◽  
pp. M89-M93 ◽  
Author(s):  
M. Carmen Collado ◽  
Ingrid Surono ◽  
Jussi Meriluoto ◽  
Seppo Salminen
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Cell Surface ◽  
Surface Properties ◽  
Cell Surface Properties

Evaluating the technological properties of lactic acid bacteria in Wagyu cattle milk

2021 ◽  
pp. 1-7
Author(s):  
Harutoshi Tsuda ◽  
Kana Kodama
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Raw Milk ◽  
Starter Cultures ◽  
Technological Properties ◽  
Mature Milk ◽  
16S Rdna Sequence Analysis ◽  
Physiological And Biochemical Characteristics ◽  
Fermented Dairy Products ◽  
Fermented Dairy

Abstract This paper reveals the technological properties of lactic acid bacteria isolated from raw milk (colostrum and mature milk) of Wagyu cattle raised in Okayama Prefecture, Japan. Isolates were identified based on their physiological and biochemical characteristics as well as 16S rDNA sequence analysis. Streptococcus lutetiensis and Lactobacillus plantarum showed high acid and diacetyl-acetoin production in milk after 24 h of incubation at 40 and 30°C, respectively. These strains are thought to have potential for use as starter cultures and adjunct cultures for fermented dairy products.

Bifidobacterium longum and Bifidobacterium breve isolates from preterm and full term neonates: Comparison of cell surface properties

Anaerobe ◽  
2014 ◽  
Vol 28 ◽  
pp. 212-215 ◽  
Author(s):  
Valérie Andriantsoanirina ◽  
Anne-Claire Teolis ◽  
Liu Xin Xin ◽  
Marie Jose Butel ◽  
Julio Aires
Keyword(s):  
Cell Surface ◽  
Surface Properties ◽  
Bifidobacterium Longum ◽  
Full Term ◽  
Term Neonates ◽  
Bifidobacterium Breve ◽  
Cell Surface Properties

Characterisation and technological properties of psychotropic lactic acid bacteria strains isolated from Tunisian raw milk

2008 ◽  
Vol 58 (3) ◽  
pp. 461-469 ◽  
Author(s):  
Olfa Ben Moussa ◽  
Melika Mankaï ◽  
Khaola Setti ◽  
Mouna Boulares ◽  
Medini Maher ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Raw Milk ◽  
Technological Properties

scholarly journals The post‐translational modification of the C lostridium difficile flagellin affects motility, cell surface properties and virulence

2014 ◽  
Vol 94 (2) ◽  
pp. 272-289 ◽  
Author(s):  
Alexandra Faulds‐Pain ◽  
Susan M. Twine ◽  
Evgeny Vinogradov ◽  
Philippa C. R. Strong ◽  
Anne Dell ◽  
...  
Keyword(s):  
Cell Surface ◽  
Surface Properties ◽  
Post Translational Modification ◽  
Cell Surface Properties

In Vitro antibacterial activity of lactic acid bacteria isolated from goat’s raw milk of Mostaganem (West Algeria) against Gram negative bacteria responsible for urinary tract infections

2016 ◽  
Vol 6 (1) ◽  
pp. 15-22
Author(s):  
Zergoug Amina ◽  
Cheriguene Abderrahim ◽  
Chougrani Fadela
Keyword(s):  
Antibacterial Activity ◽  
Lactic Acid ◽  
Urinary Tract ◽  
Lactic Acid Bacteria ◽  
Raw Milk ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Tract Infections ◽  
West Algeria

Urinary tract infections (UTI) are a serious bacterial pathological challenges all over the world, leading to respiratory infections, that’s why new strategies don’t cease to develop. Lactic acid bacteria having shown beneficial effects for years in various areas, may prove to be excellent candidates in medical field. The current research focused on the selection of lactic acid bacteria having the potential of an antibacterial activity against Gram negative bacteria responsible for UTI, for an eventual use as a therapeutic agent. A total of 40 isolates were isolated from goat’s raw milk of Mostaganem (West Algeria). In vitro tests were conducted in order to determine the efficiency of the isolates to produce antibacterial agents in interaction with uropathogens. Among 40 isolates, only 10 isolates identified as Lactobacilli and Lactococci were performant. The Screening showed that the inhibitor agent was proteinaceous substance. Therfore, it is noted that a treatment with presence of LAB is very encouraging as a result of the production of bacteriocin-like substance. On the other hand, LAB can be considered as a good alter-native to the large extent to the antibiotics in the treatment of UTI.

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