Probiotic potential and biofilm inhibitory activity of Lactobacillus casei group strains isolated from infant feces

Tarrah, Armin; Duarte, Viní­cius da Silva; Castilhos, Juliana de; Pakroo, Shadi; Lemos, Wilson José Fernandes; Luchese, Rosa Helena; Guerra, André Fioravante; Rossi, Rochele Cassanta; Ziegler, Denize Righetto; Corich, Viviana; Giacomini, Alessio

doi:10.1016/j.jff.2019.02.004

Cited by 57 publications

(47 citation statements)

References 59 publications

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“…Finally, transfer and incubation for 2 h into intestinal juice (0.3% of bile salt and 0.1% pancreatin) led to an additional decrease in the number of BGKMJ1-36 to 9.33 × 10 6 CFU/mL (2%) and BGVLJ1-21 to 2.05 × 10 6 CFU/mL (0.2%). Our results on the viability of BGKMJ1-36 and BGVLJ1-21 strains in the unfavorable GIT conditions are comparable with data available in the literature [ 72 , 73 ]. Many researchers have reported that low pH represents a crucial parameter in the viability of starter cultures [ 74 , 75 ].…”

Section: Resultssupporting

confidence: 90%

Yogurt Produced by Novel Natural Starter Cultures Improves Gut Epithelial Barrier In Vitro

et al. 2020

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Yogurt is a traditional fermented dairy product, prepared with starter cultures containing Streptococcus thermophilus and Lactobacillus bulgaricus that has gained widespread consumer acceptance as a healthy food. It is widely accepted that yogurt cultures have been recognized as probiotics, due to their beneficial effects on human health. In this study, we have characterized technological and health-promoting properties of autochthonous strains S. thermophilus BGKMJ1-36 and L. bulgaricus BGVLJ1-21 isolated from artisanal sour milk and yogurt, respectively, in order to be used as functional yogurt starter cultures. Both BGKMJ1-36 and BGVLJ1-21 strains have the ability to form curd after five hours at 42 °C, hydrolyze αs1-, β-, and κ- casein, and to show antimicrobial activity toward Listeria monocytogenes. The strain BGKMJ1-36 produces exopolysaccharides important for rheological properties of the yogurt. The colonies of BGKMJ1-36 and BGVLJ1-21 strains that successfully survived transit of the yogurt through simulated gastrointestinal tract conditions have been tested for adhesion to intestinal epithelial Caco-2 cells. The results reveal that both strains adhere to Caco-2 cells and significantly upregulate the expression of autophagy-, tight junction proteins-, and anti-microbial peptides-related genes. Hence, both strains may be interesting for use as a novel functional starter culture for production of added-value yogurt with health-promoting properties.

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Section: Resultssupporting

confidence: 90%

Yogurt Produced by Novel Natural Starter Cultures Improves Gut Epithelial Barrier In Vitro

et al. 2020

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“…The results of current findings were also consistent with the results of Wang, et al [63] who evaluated the probiotic potential of lactic acid bacteria from Chinese spontaneously fermented non-dairy food products and revealed no hemolytic activity of probiotic. Many researchers [37,[64][65][66] reported that probiotics did not showed hemolytic activity. When the safety of probiotic is concerned, lack of hemolytic activity is important during the selection of probiotic strains, because such strains are non-virulence and lack of hemolysin ensures that virulence will not appear among the bacterial strains (FAO/WHO 2006).…”

Section: Discussionmentioning

confidence: 99%

In Vitro Probiotic Potential and Safety Evaluation (Hemolytic, Cytotoxic Activity) of Bifidobacterium Strains Isolated from Raw Camel Milk

et al. 2020

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The present study was designed to isolate Bifidobacterium strains from raw camel milk and to investigate their probiotic characteristics. Among 35 isolates, 8 were identified as Gram-positive, catalase negative, non-spore forming, non-motile and V or Y shaped rods. B-2, B-5, B-11, B-19 and B-28 exhibited good survival at low pH and high bile salt concentration. Most of the isolates were resistant to nalidixic acid, fusidic acid, polymyxin B, neomycin, streptomycin, gentamicin, rifampicin and kanamycin. Furthermore, the production of exopolysaccharides (EPS), adhesion characteristics, antioxidant properties, antagonistic activities, nitrite reduction and cholesterol assimilation were also studied. Isolate B-11 was chosen because it exhibited most of the probiotic properties among all the tested isolates. It is identified as the member of Bifidobacterium longum group through 16S rRNA gene sequencing and named as B. longum B-11. B. longum B-11 was further selected for in vivo attachment to rat intestine and scanning electron micrographs revealed that attachment of a large number of rods shaped bacterial cell. Our findings suggest that B. longum B-11 processes excellent attributes to be used as potential probiotic in the development of functional probiotic food.

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“…Some of the best properties of probiotics, such as antipathogenicity [ 56 , 57 ], anti-diabetic [ 58 , 59 ], anti-obesity [ 60 , 61 ], anti-inflammatory [ 60 ], anti-cancer [ 62 ], anti-allergic [ 63 ], and angiogenic activities, as well as their effect on fatigue, the brain, and the central nervous system, have been described [ 64 ].…”

Section: Pro and Prebiotic In Human Healthmentioning

confidence: 99%

An Overview of Gut Microbiota and Colon Diseases with a Focus on Adenomatous Colon Polyps

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Diaconeasa

et al. 2020

IJMS

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It is known and accepted that the gut microbiota composition of an organism has an impact on its health. Many studies deal with this topic, the majority discussing gastrointestinal health. Adenomatous colon polyps have a high prevalence as colon cancer precursors, but in many cases, they are hard to diagnose in their early stages. Gut microbiota composition correlated with the presence of adenomatous colon polyps may be a noninvasive and efficient tool for diagnosis with a high impact on human wellbeing and favorable health care costs. This review is meant to analyze the gut microbiota correlated with the presence of adenomatous colon polyps as the first step for early diagnosis, prophylaxis, and treatment.

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Probiotic potential and biofilm inhibitory activity of Lactobacillus casei group strains isolated from infant feces

Cited by 57 publications

References 59 publications

Yogurt Produced by Novel Natural Starter Cultures Improves Gut Epithelial Barrier In Vitro

Yogurt Produced by Novel Natural Starter Cultures Improves Gut Epithelial Barrier In Vitro

In Vitro Probiotic Potential and Safety Evaluation (Hemolytic, Cytotoxic Activity) of Bifidobacterium Strains Isolated from Raw Camel Milk

An Overview of Gut Microbiota and Colon Diseases with a Focus on Adenomatous Colon Polyps

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