Journal
JOURNAL OF FUNCTIONAL FOODS
Volume 84, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jff.2021.104599
Keywords
Fermented milk; Probiotic; Lactic acid bacteria; Breast milk
Categories
Funding
- Ministry of Science and Innovation [PID2019108070RB100]
- Generalitat Valenciana [Prometeo/2018/126]
- University of Valencia Atraccion de Talento [UVINVPREDOC17F1534905POP]
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The study investigated seven strains of lactic acid bacteria isolated from breast milk for their probiotic properties. Lactobacillus plantarum 5H1 and 5L1 were chosen for their beneficial characteristics and utilized in the production of probiotic fermented milk. The findings demonstrated the antimicrobial activity of the strains against pathogenic bacteria and toxigenic fungi, as well as their ability to adhere and reduce Salmonella adhesion to Caco-2 cells. During milk fermentation, an increase in lactic acid content, decrease in milk pH, and rise in total bacterial count were observed, while LAB viability in fermented milk storage remained at around 8 log10 CFU/mL.
A total of seven strains of lactic acid bacteria (LAB) isolated from breast milk, were investigated for their probiotic properties. Lactobacillus plantarum 5H1 and 5L1 were selected for their beneficial properties and used for probiotic fermented milk manufacture. The fermentation parameters (pH and lactic acid) and LAB viability during fermented milk processing and storage were evaluated. The results showed that the strains had a broad spectrum of antimicrobial activity against pathogenic bacteria and toxigenic fungi. These also evidenced capacity of adhesion and reduction of Salmonella adhesion to Caco-2 cells. During milk fermentation process, an increase in lactic acid content, a decrease in milk pH, and an increase in the total bacterial count were evidenced. LAB viability in fermented milk during storage remained around 8 log10 CFU/mL. This workflow can be useful for the isolation of new probiotics and the development of fermented milks with probiotic properties to promote host health.
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