scholarly journals Saccharomyces cerevisiae var. boulardii – Probiotic Yeast

Probiotics ◽  
10.5772/50105 ◽  
2012 ◽  
Author(s):  
Marcin ukaszewicz
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Probiotic Yeast

scholarly journals Unique genetic basis of the distinct antibiotic potency of high acetic acid production in the probiotic yeast Saccharomyces cerevisiae var. boulardii

2019 ◽  
Vol 29 (9) ◽  
pp. 1478-1494 ◽  
Author(s):  
Benjamin Offei ◽  
Paul Vandecruys ◽  
Stijn De Graeve ◽  
María R. Foulquié-Moreno ◽  
Johan M. Thevelein
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Acetic Acid ◽  
Acid Production ◽  
Genetic Basis ◽  
Yeast Saccharomyces Cerevisiae ◽  
Acetic Acid Production ◽  
Probiotic Yeast

Probiotic yeast BR14 ameliorates DSS-induced colitis by restoring gut barrier and adjusting intestinal microbiota

2021 ◽  
Author(s):  
Zhiyong Mu ◽  
Yijin Yang ◽  
YongJun Xia ◽  
Fukang Wang ◽  
Yiwei Sun ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Stress Tolerance ◽  
Intestinal Microbiota ◽  
Yeast Species ◽  
Saccharomyces Boulardii ◽  
Gut Barrier ◽  
Beneficial Effects ◽  
Probiotic Yeast ◽  
Great Stress

Probiotic Saccharomyces boulardii has been widely used in colitis treatment, however, beneficial effects of other yeast species are rarely studied. Saccharomyces cerevisiae with great stress tolerance and potential in colitis...

scholarly journals Biotransformation Mechanism of Inorganic Selenium into Selenomethionine and Selenocysteine by Saccharomyces Boulardii: In Silico Study

2021 ◽  
Author(s):  
Lourdes González-Salitre ◽  
Alma Delia Román-Gutiérrez ◽  
Gabriela Mariana Rodríguez-Serrano ◽  
Judith Jaimez-Ordaz ◽  
Mirandeli Bautista-Ávila ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
In Silico ◽  
Metabolic Model ◽  
Saccharomyces Boulardii ◽  
Orthologous Genes ◽  
Organic Species ◽  
Inorganic Selenium ◽  
In Silico Study ◽  
Probiotic Yeast ◽  
Genome Scale

Abstract The biosynthesis of inorganic selenium into seleno amino acids has been studied in recent years. Thus, it has been reported that Saccharomyces cerevisiae bioaccumulates selenium from the metabolism of inorganic selenium. Based on the studies conducted, several authors have proposed a biotransformation metabolism of selenate into selenomethionine or selenocysteine. However, the pathway in different yeast is unknown. Therefore, and given the relevance of Saccharomyces boulardii as probiotic yeast, this study aims to propose the pathway used by S. boulardii to biosynthesize inorganic selenium into organic species. A comparative in silico study was performed for Saccharomyces boulardii ASM141397V1 with the genome-scale metabolic model of Saccharomyces cerevisiae S288C. Orthologous genes were identified using BLASTp of NCBI. In addition, a circular representation was done using CIRCOS software. The metabolic pathway for the assimilation of selenium was proposed based on the results obtained

scholarly journals Isolation and Identification of Saccharomyces cerevisiae from Caterpillar Frass and their Probiotic Characterization

2019 ◽  
Vol 16 (1) ◽  
pp. 179-186 ◽  
Author(s):  
Ujwala Vinayak Khisti ◽  
Suyash Arun Kathade ◽  
Mayur Arjun Aswani ◽  
Pashmin Kaur Anand ◽  
Nirichan Kunchirman Bipinraj
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Pathogenic Bacteria ◽  
Antimicrobial Activities ◽  
Yeast Cells ◽  
Isolation And Identification ◽  
Yeast Cultures ◽  
Isolation And Characterization ◽  
Wide Range ◽  
Probiotic Yeast ◽  
Bacteria And Fungi

Probiotics are live microorganisms which upon ingestion confer health benefits to the host and are widely applied for human and animal welfare. The present study reports the isolation of yeast cells from caterpillar frasses and its probiotic characterization. Out of four yeast cultures isolated, all found to be non-hemolytic and cultures designated as CV-I, CV-II CV-III and CV-IV showed good bile tolerance at 1.2%. These cultures possessed the ability to grow pH range of 1.5 – 10, exhibited auto-aggregation and co-aggregation capabilities, which are essential for growth in alimentary canal and reduction of pathogen adherence on the intestinal epithelial cells. All cultures exhibited good tolerance to temperature up to 42°C. Isolate CV-I showed wide range of antimicrobial activities against pathogenic bacteria and fungi. This study is the first report of isolation and characterization of probiotic yeast from caterpillar frass. The isolate CV-I has been identified as Saccharomyces cerevisiae by molecular methods. This culture is an ideal candidate for further probiotic exploration.

Probiotic gut-borne Saccharomyces cerevisiae reduces liver toxicity caused by aflatoxins in weanling piglets

2021 ◽  
pp. 1-10
Author(s):  
V. Poloni ◽  
A. Magnoli ◽  
A. Fochesato ◽  
L. Poloni ◽  
A. Cristofolini ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Liver Toxicity ◽  
Animal Feed ◽  
Feed Additives ◽  
Liver Histopathology ◽  
Absorption Area ◽  
Mixed Breed ◽  
Probiotic Yeast ◽  
Weanling Piglets ◽  
Aflatoxin B

The present study was conducted to investigate the aflatoxin B1 (AFB1) liver toxicity and gut histomorphometry after gut borne-Saccharomyces cerevisiae supplementation to AFB1-contaminated piglet diets. Thirty-two male mixed-breed piglets (weaned at 21 days old) were housed in individual pens and allowed to acclimate for 7 days. Animals were randomly assigned to four treatments of 22 days: T1 – low AFB1 levels diet (L, 31.6 μg/kg); T2 – L + S. cerevisiae 1 g/kg; T3 – high AFs levels diet (H, 495 μg/kg); T4 – H + S. cerevisiae 1 g/kg. The addition of probiotic yeast was able to reduce 72% of residual AFB1 present in the liver. The liver histopathology of piglets fed AFB1 showed a typical macroscopic and microscopic pattern of subclinical aflatoxicosis that was prevented by the yeast. Also, the addition of the yeast was able to decrease the alanine-aminotransferase (25.5±0.71 U) and aspartate-aminotransferase (26.5±6.10 U) even showing values lower than the control ones. The apparent absorption area showed the greater surface when the probiotic was present alone compared to the control (T1), whereas when present together with the toxin demonstrated a modulatory effect. The addition of probiotic gut-borne S. cerevisiae in the pig diets was effective in counteracting the toxic effects of harmful AFB1 in livers besides a tendency to improve the histomorphometric parameters and modulating the toxic effect of AFB1 on intestine. These results are promising for the production of feed additives that will be used in animal feed, since the probiotic action and the decontamination of mycotoxins in the same product are complemented.

Inhibitory effect of probiotic yeast Saccharomyces cerevisiae on biofilm formation and expression of α-hemolysin and enterotoxin A genes of Staphylococcus aureus

2019 ◽  
Author(s):  
Navid Saidi ◽  
Parviz Owlia ◽  
Seyed Mahmoud Amin Marashi ◽  
Horieh Saderi
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Biofilm Formation ◽  
Food Poisoning ◽  
Microtiter Plate ◽  
Inhibitory Effect ◽  
Yeast Saccharomyces Cerevisiae ◽  
Microtiter Plate Assay ◽  
Probiotic Yeast ◽  
Mrsa Strains

Background and Objectives: Staphylococcus aureus, as an opportunistic pathogen, is the cause of a variety of diseases from mild skin infections to severe invasive infections and food poisoning. Increasing antibiotic resistance in S. aureus isolates has become a major threat to public health. The use of compounds produced by probiotics can be a solution to this problem. Thus, the purpose of this study was to investigate the effect of Saccharomyces cerevisiae on some virulence factors (biofilm, α-hemolysin, and enterotoxin A) of S. aureus. Materials and Methods: Supernatant and lysate extracts were prepared from S. cerevisiae S3 culture. Sub-MIC concen- trations of both extracts were separately applied to S. aureus ATCC 29213 (methicillin-sensitive S. aureus; MSSA) and S. aureus ATCC 33591 (methicillin-resistant S. aureus; MRSA) strains. Biofilm formation of these strains was measured by microtiter plate assay and expression level of α-hemolysin and enterotoxin A genes (hla and sea, respectively) using real-time PCR technique. Results: The supernatant extract has reduced both biofilm formation and expression of sea and hla genes, while lysate ex- tract had only anti-biofilm effects. The MRSA strain showed more susceptibility to yeast extracts than MSSA strain in all tests. Conclusion: The present study exhibited favorable antagonistic effects of S. cerevisiae S3, as a probiotic yeast, on MSSA and MRSA strains. Based on the findings of this study, the compounds produced by this yeast can be used to control S. aureus infections; however, further similar studies should be conducted to confirm the findings of the present study.

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