The aim of this study was to promote the Z-isomerization lycopene in its extraction process from tomato pulp by adding foodstuffs containing Z-isomerization-accelerating compounds. addition onion, broccoli, mustard, makonbu (Saccharina japonica), or shiitake mushroom (Lentinus edodes) ethyl acetate significantly accelerated lycopene. For example, when extracted at 70 °C without foodstuffs, tota...