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Functional fermented milk products.

O Brunser¹, M Gotteland, S Cruchet

¹Institute of Nutrition and Food Technology, University of Chile, Santiago, Chile.

Nestle Nutrition Workshop Series. Paediatric Programme

|August 1, 2007

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Fermented foods offer numerous health benefits, including improved blood pressure and lactose tolerance. Specific lactic acid bacteria strains also show potential for managing allergies and cholesterol levels.

Area of Science:

Food Science
Microbiology
Human Health

Background:

Fermented foods, prepared using bacteria, yeasts, and molds, have a long history of consumption.
Scientific research has advanced the understanding of microorganisms in fermentation and their biological significance.
Health benefits associated with fermented foods include effects on blood pressure, antimicrobial activity, and improved lactose digestion.

Purpose of the Study:

To explore the diverse health benefits of fermented foods.
To investigate the role of specific microorganisms, particularly lactic acid bacteria, in these health effects.
To highlight the strain-specific nature of probiotic capacities in fermenting microorganisms.

Main Methods:

Review of scientific literature on fermented foods and their associated health properties.

Related Experiment Videos

Analysis of studies on casein hydrolysis by lactic acid bacteria and resulting peptide activities.

Examination of research on the impact of fermented foods on conditions like allergies and cholesterol levels.

Main Results:

Casein hydrolysis by lactic acid bacteria can influence blood pressure.
Antimicrobial peptides derived from casein exhibit activity against Gram-negative bacteria, potentially aiding in managing diarrhea and Helicobacter pylori infections.
Fermented milk products enhance lactose tolerance in individuals with hypolactasia.
Some microorganisms in fermented foods demonstrate cholesterol-lowering effects.
Lactic acid bacteria show association with allergy improvements, but not inflammatory bowel diseases like Crohn's disease or ulcerative colitis.

Conclusions:

Fermented foods possess a range of health-promoting properties attributed to their microbial composition and metabolic products.
Lactic acid bacteria play a significant role in various health benefits, including improved digestion and potential immune modulation.
Probiotic effects are strain-specific, emphasizing the need for careful selection of microorganisms for therapeutic applications.