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Luc De Vuyst.pdf - ICoMST Contact Point

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<strong>De</strong> <strong>Vuyst</strong>, Avonts & Makras (2004). Woodhead Publishing, Ltd., Cambridge, UK<br />

Important criteria for probiotics<br />

Probiotics: selection criteria<br />

- Human origin and non-pathogenic behaviour<br />

- Survive passage through the upper gastrointestinal tract<br />

- resistance to gastric acid and bile toxicity, digestive enzymes, …<br />

- active during transit from stomach to colon (expression of genes during intestinal<br />

transit)<br />

- Interact with the resident microbiota<br />

- ability to transiently adhere to or interact with the intestinal epithelium and colonize the<br />

colon<br />

- do not affect the dominant microbiota significantly<br />

- have an effect on the numbers and diversity of the endogenous Lactobacillus and<br />

Bifidobacterium species<br />

- Affect the function of the host:<br />

- probiotic-host interactions (functional genomics, clinical trials and human intervention<br />

studies)<br />

- prevention of (the risk on) disease (meta-analyses)<br />

- Resistant towards technological processing and storage<br />

- importance of the food matrix and the applied process technology<br />

- stable/alive till the moment of consumption (the number of live, active cells is<br />

important)<br />

- High safety profile and excellent tolerance (Lb. rhamnosus, D-lactic acid)

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