ProMedFoods-goat-cheese-metabarcoding-16S-ITS
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ABSTRACT:
PROVIDER: PRJEB37675 | ENA |
REPOSITORIES: ENA
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Project description:This study describes the fungal microbiota of a french goat cheese during cheese making and ripening and microbiota of environmental species.
| PRJEB37922 | ENA
Project description:This study describes the bacterial microbiota of a french goat cheese during cheese making and ripening and microbiota of environmental species.
| PRJEB37923 | ENA
Project description:The intra sub-species diversity of six strains of Lactococcus lactis subsp. lactis was investigated at the genomic level and in terms of phenotypic and transcriptomic profiles in UF-cheese model. Six strains were isolated from various sources, but all are exhibiting a dairy phenotype. Our results showed that, the six strains exhibited small phenotypic differences since similar behaviour in terms of growth was obtained during cheese ripening while only different acidification capability was detected. Even if all strains displayed high genomic similarities, sharing a high core genome of almost two thousands genes, the expression of this core genome directly in the cheese matrix revealed major strain-specific differences. This strains with the same dairy origin.
2012-09-07 | GSE23987 | GEO
Project description:The intra sub-species diversity of six strains of Lactococcus lactis subsp. lactis was investigated at the genomic level and in terms of phenotypic and transcriptomic profiles in UF-cheese model. Six strains were isolated from various sources, but all are exhibiting a dairy phenotype. Our results showed that, the six strains exhibited small phenotypic differences since similar behaviour in terms of growth was obtained during cheese ripening while only different acidification capability was detected. Even if all strains displayed high genomic similarities, sharing a high core genome of almost two thousands genes, the expression of this core genome directly in the cheese matrix revealed major strain-specific differences. This strains with the same dairy origin. Strains were cultured on skimmed raw milk ultrafiltration (UF) retentate. The UF retentate was pre-incubated overnight at 4 °C, then 45 minutes at 50 °C and homogenized during 1.5 minutes at 24 000 rpm with an ultra-turax (Imlab, France). After addition of rennet (0.3 µl ml-1), 400 g UF retentate was inoculated at 2 106 CFU/g with L. lactis subsp. lactis strains. After incubation for 8 hours at 30 °C, the cheeses were transferred at 12° C until 7 days for ripening simulation. At least three independent cultures of the six strains were performed. Total RNA was extracted from cells grown 24 hours in UF-cheese and radiolabelled cDNA were prepared and hybridized on nylon arrays. 1948 amplicons specific of Lactococcus lactis IL1403 genes were spotted twice on the array. 3 independent repetitions were performed.
2012-09-07 | E-GEOD-23987 | biostudies-arrayexpress
Project description:Microbiota and mycobiota of Queijo de Azeitao PDO cheese Metagenome
| PRJNA706919 | ENA
Project description:Penicillium roqueforti population impact on blue cheese production
| PRJEB36799 | ENA
Project description:Aside from their amino acid content, dairy proteins are valuable for their ability to carry encrypted bioactive peptides whose activities are latent until released by digestive enzymes or endogenous enzymes within the food. Peptides can possess a wide variety of functionalities, such as antibacterial, antihypertensive, and antioxidative properties, as demonstrated by in vitro and in vivo studies. This phenomenon raises the question as to what impact various traditional cheese-making processes have on the formation of bioactive peptides in the resulting products. In this study, we have profiled the naturally-occurring peptides in two hard and two soft traditional cheeses and have identified their known bioactive sequences. While past studies have typically identified fewer than 100 peptide sequences in a single cheese, we have used modern instrumentation to identify between 2900 and 4700 sequences per cheese, an increase by a factor of about 50. We demonstrated substantial variations in proteolysis and peptide formation between the interior and rind of each cheese, which we ascribed to the differences in microbial composition between these regions. We identified a total of 111 bioactive sequences among the four cheeses, with the greatest number of sequences, 89, originating from Mimolette. The most common bioactivities identified were antimicrobial and inhibition of the angiotensin-converting enzyme. This work revealed that cheese proteolysis and the resulting peptidomes are more complex than originally thought in terms of the number of peptides released, variation in peptidome across sites within a single cheese, and variation in bioactive peptides among cheese-making techniques.
2020-12-23 | PXD021426 | Pride
Project description:The cheese microbial community is dense with relatively low complexity and composed of cultivable prokaryotic and eukaryotic microorganisms. The ripening process can thus be reproduced under controlled conditions. A reduced microbial community composed of yeasts and bacteria was assembled to mimic that of smear-ripened cheese. The genomes of the microorganisms have been sequenced and annotated, which allows access to gene expression under various conditions at different ripening times. Through the use of a combined approach using omics (e.g. metatranscriptomics, volatilomics), and biochemical/microbial analyses, we have investigated the effect of a biotic perturbation, omission of some yeast, on the stability and functionality of the microbial cheese community throughout ripening.
2024-04-29 | MTBLS6968 | MetaboLights
Project description:Pool-seq analysis of cheese making properties in Danish Holsteins
| PRJEB8408 | ENA