The effect of freeze‐drying, pasteurisation and high‐intensity ultrasound on gastrointestinal stability and antioxidant activity of blueberry phenolics

Summary The influence of freeze‐drying, pasteurisation and high‐intensity ultrasound on gastrointestinal stability and antioxidant activity of cultivated blueberry phenolics was investigated. Quantitative and qualitative analyses were done before and after a two‐phase in vitro digestion by human digestive enzymes. Antioxidant capacity of blueberry phenolics before and after simulated digestion was evaluated using DPPH and the FRAP assays. After...