Underlying substituted pyrazines formation in the glucose-alanine Maillard reaction: Carbon module labeling and carbonyl analysis strategy - Huan Liu; Shuqi Zhao; Jingyu Li; Yuping Zhang; Yu Liu; Fengxue Zhang; Chanchan Sun; Chengyu Zeng; Cheng Li; Zihan Wang; Benlong Yue (Food Research International, 2026)