The purpose of this study was to investigate the effects of
water cooking on the changes in TCC, total phenolic content
(TPC), and total antioxidant capacity (TAC) for carotenoid-rich
vegetables including cilantro, Thai basil leaves, sweet potato
leaves, and choy sum. Based on this study, the optimal
cooking time to minimize the loss of bioactive compounds will
be defined and the relationship between each antioxidant
component and antioxidant capacity will thus be established.