In dairy, Lactobacillus and Streptococcus cultures convert lactose into lactic acid, coagulating milk proteins for yogurt and cheese. These organisms convert sugars primarily into lactic acid through glycolysis, a process that lowers pH and inhibits the growth of spoilage pathogens.
Lactic Acid Bacteria Yogurt Cheese Fermentation: How These Cultures Transform Milk and Boost Health
Each genus exhibits distinct characteristics regarding temperature tolerance, acid production, and ecological niche, influencing their application in specific industrial or clinical contexts. Homofermentative strains, such as most Lactococcus and Streptococcus species, convert nearly all available sugars into lactic acid, yielding high acidity and efficient preservation.
Health Benefits and the Human Microbiome Beyond food, lactic acid producing bacteria are central to human health, particularly within the gut microbiome. , Lactobacillus brevis ), contributing to complex flavor profiles.
Lactic Acid Bacteria Yogurt Cheese Fermentation Process
They are not a taxonomic clade but a functional group defined by their metabolic output. Heterofermentative: Generate a mixture of lactic acid, ethanol, CO2, and acetic acid (e.
More About Lactic acid producing bacteria
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