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Fermented foods microbiota

ABSTRACT: Characterization of Arabian fermented foods microbiota and interaction with gut microbiome of ‎Bedouin population

PROVIDER: PRJEB19968 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR1904360_1.fastq.gz	Fastqsanger.gz
	ERR1904360_2.fastq.gz	Fastqsanger.gz
	ERR1904370_1.fastq.gz	Fastqsanger.gz
	ERR1904370_2.fastq.gz	Fastqsanger.gz
	ERR1904361_1.fastq.gz	Fastqsanger.gz

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Project description:The consumption of fermented food has been linked to positive health outcomes due to a variety of functional properties. Fermented dairy constitutes a major dietary source and contains lactoseas main carbohydrate and living starter cultures. To investigate whether nutritional and microbial modulation impacted intestinal microbiota composition and activity, we employed fecal microbiota fermentations and a dairy model system consisting of lactose and β-galactosidase positive and negative Streptococcus thermophilus. Based on 16S rRNA gene based microbial community analysis, we observed that lactose addition increased the abundance of Bifidobacteriaceae, and of Veillonellaceae and Enterobacteraceae in selected samples. The supplied lactose was hydrolysed within 24 h of fermentation and led to higher expression of community indigenous β-galactosidases. Targeted protein analysis confirmed that bifidobacteria contributed most β-galactosidases together with other taxa including Escherichia coli and Anaerobutyricum hallii. Lactose addition led to 1.1-1.8 fold higher levels of butyrate compared to controls likely due to (i) lactate-crossfeeding and (ii) direct lactose metabolism by butyrate producing Anaerobutyricum and Faecalibacterium spp. Representatives of both genera used lactose to produce butyrate in single cultures. When supplemented at around 5.5 log cells mL-1, S. thermophilus or its beta-galactosidase negative mutant outnumbered the indigenous Streptococcaceae population at the beginning of fermentation but had no impact on lactose utilisation and final SCFA profiles. This study brings forward new fundamental insight into interactions of major constituents of fermented dairy with the intestinal microbiota. We provide evidence that lactose addition increases fecal microbiota production of butyrate through cross-feeding and direct metabolism without contribution of starter cultures.

2025-01-30 | PXD054534 | Pride

Limosilactobacillus fermentum strain:FMT24 | isolate:fermented foods

Project description:Limosilactobacillus fermentum strain:FMT24 | isolate:fermented foods Genome sequencing

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The Effects of Bacillus licheniformis-fermented Products on Chronic Feline Diarrhea and Intestinal Microbiota

Project description:Bacillus licheniformis-fermented products (BLFP) are probiotics with antibacterial, antiviral, and anti-inflammatory properties that can improve growth performance. This study aimed to, firstly, compare the fecal microbiota of cats with chronic diarrhea (n = 8) with that of healthy cats (n = 4) from the same household using next-generation sequencing and, secondly, evaluate the effectiveness of oral administration of BLFP in relieving clinical signs and altering the intestinal microbiota in diarrheal cats. Six out of eight cats with diarrhea showed clinical improvement after BLFP administration for 7 days, and in two cats the stool condition was normal. A higher Firmicutes/Bacteroidetes ratio was noted in the feces of diarrheal cats without clinical improvement as compared with those in the healthy control group and in the diarrheal cats with clinical improvement after receiving BLFP. The phylum Bacteroidetes and class Bacteroidia decreased significantly in diarrheal cats regardless of BLFP administration. Blautia spp., Ruminococcus torques, and Ruminococcus gnavus, which belong to the Clostridium cluster XIVa and have been reported as beneficial to intestinal health, increased significantly in feces after BLFP treatment. Furthermore, a significant decrease in Clostridium perfringens was noted in diarrheal cats after BLFP administration. Overall, BLFP could be a potential probiotic to relieve gastrointestinal symptoms and improve fecal microbiota in cats with chronic diarrhea.

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Effects of current therapeutic foods in undernourished Bangladeshi children compared to microbiota-directed food prototypes in gnotobiotic mice and piglets

Project description:Effects of current therapeutic foods in undernourished Bangladeshi children compared to microbiota-directed food prototypes in gnotobiotic mice and piglets

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