Antioxidant stability, bioaccessibility, and gut microbiota regulation of lightly fermented sour tea during simulated digestion

Key Points

• A notable stability of antioxidants was observed throughout the simulated digestion process, indicating effectiveness.
• Bioaccessibility measurements showed that the antioxidant compounds remain available for absorption after digestion.
• Assessment using simulated digestion methods reveals significant impacts on gut microbiota regulation by sour tea.
• This indicates the potential of sour tea to support gut health and optimize antioxidant intake in diets.