Insight into the synergistic inhibition of oyster pentapeptide (Phe-Pro-Val-Gly-Arg) and peonidin-3-O-glucoside against DPP-IV and their interactions - Xiaojie Su; Mengmeng Zhang; Wenhong Cao; Longjian Zhou; Mingtang Tan; Guoping Zhu; Jialong Gao; Haisheng Lin; Zhongqin Chen (Food Research International, 2026)