Ingredient overview
What it is
Bifidobacterium longum is an oxygen-sensitive bacterium commonly found in the human intestine. It uses a specialised fermentation pathway known as the bifid shunt to process carbohydrates.
- Scientific identity: Bifidobacterium longum; main pathway: Bifid shunt, specialised carbohydrate fermentation.
- How it works: Ferments fibre by the bifid shunt: It uses a carbohydrate route unique to the genus, and carries a broad enzyme set for breaking down dietary fibres that reach the colon undigested. Produces acetate and lactate: The bifid shunt yields acetic and lactic acid, which lower local pH and feed into the wider short-chain fatty acid pool.
- Primary function: Its fermentation produces compounds such as acetate and lactate that contribute to the wider gut microbial environment.
- What it supports: Bifidobacterium longum helps turn selected dietary fibres into useful gut compounds that support a balanced digestive environment.
- Important consideration: Effects depend on the exact bacterial strain, viable colony-forming units and appropriate storage conditions throughout shelf life.
