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Probiotics and Functional Foods

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Probiotics and Functional Foods The Biotech of Digestion What are Probiotics? dietary supplements containing potentially beneficial bacteria such as Lactobacillus and ... – PowerPoint PPT presentation

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Title: Probiotics and Functional Foods


1
Probiotics and Functional Foods
  • The Biotech of Digestion

2
What are Probiotics?
  • dietary supplements containing potentially
    beneficial bacteria such as Lactobacillus and
    Bifidobacterium or yeasts
  • probiotics means for life

3
What are Probiotics?
  • Live microorganisms which when administered in
    adequate amounts confer a health benefit on the
    host

4
Why do we need probiotics?
  • Flora Out of Balance
  • antiboitics
  • drugs
  • excessive alcohol
  • disease
  • toxic substances

5
Where do probiotics fit into digestion?
  • body contains a miniature ecology of microbes,
    collectively known gut flora
  • balanced they work together for health digestion
    but sometimes out of balance
  • Use probiotic bacteria work to decrease
    competitor bacteria harmful to our health

6
How do probiotics work?
  • Probiotic bacterial cultures assist gut flora
  • Lactic acid bacteria (LAB) most used by
  • converting sugars including lactose and other
    carbohydrates into lactic acid
  • acts as a preservative by lowering pH and
    creating fewer opportunities for spoilage
    organisms
  • characteristic sour taste of fermented dairy
    foods such as yogurt

7
Claims Made for Probiotics
  • Improving Immune Function
  • Preventing Infections
  • Managing Lactose Intolerance
  • Prevention of Colon Cancer
  • Cholesterol Lowering
  • Lowering Blood Pressure

8
Current Research Opinions
  • test-tube experimentation rather than on clinical
    trials in human subjects
  • The basic concept of probiotics is based on a
    misunderstanding of the role of microflora in the
    human digestive tract.
  • difficult to understand how bacteria taken by
    mouth survive human digestion, though research
    shows that they do survive
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