Lycopene degradation, isomerization and in vitro bioaccessibility in high pressure homogenized tomato puree containing oil: Effect of additional thermal and high pressure processing

► Research on thermal and high pressure pasteurization/sterilization of tomato puree. ► Pasteurization hardly affects the health related properties of tomato puree. ► Significant lycopene degradation and isomerization after thermal sterilization. ► Limited lycopene isomerization after high pressure sterilization. ► Significant decrease in lycopene bioaccessibility after all sterilization processes.