THT - Probiotics & starter cultures

Strain selection

The selection of strains is a complex but vital step and is one of THT’s key strengths. We apply numerous selection criteria and try to select strains that combine as many as possible of the following properties:


Of human origin or derived from traditional fermented foods
Resistance (to gastric acids and bile salts)
Survival in the intestinal tract
Adhesion to intestinal cells
Competitive exclusion of pathogens,
boosting of immunity
Multiplication in the intestinal tract and urogenital system, immune modulation
Production of antimicrobial substances
Inactivation of pathogens in the intestine,
balancing of intestinal flora
Absence of food risks
Precise identification of strains (genus, species and strain)
Scientific support and documented health effects
Industrial production, shelf life and stability