OptimealHealth
Food Science & Technology

Food Fermentation

The transformation of food by microorganisms, the oldest technique of preservation.

Definition

Biochemical transformation of food by microorganisms (bacteria, yeast, mold) producing acids, alcohol, or gas, modifying nutritional and sensory properties.

How it works

Lactic fermentation (yogurt, sauerkraut, kimchi) produces lactic acid. Alcoholic fermentation (wine, beer, sourdough bread) produces ethanol and CO2. Fermentation improves digestibility (reduction of phytates, FODMAPs), increases nutritional density, and produces natural probiotics.

Role

Preserving food, improving digestibility, enriching in probiotics and micronutrients.

Examples

  • Yogurt (Lactobacillus bulgaricus)
  • Kefir
  • Sauerkraut
  • Kimchi
  • Miso
  • Tempeh
  • Sourdough bread

Recommendations

Regularly consume fermented foods as a source of probiotics and for gut health.

Key takeaway

Fermentation is one of the most beneficial transformations: it improves digestibility AND enriches in probiotics.

A question about Food Fermentation? Ask our nutrition AI.

Ask a question