Rational Engineering of Cellobiose 2-Epimerase Through Flexible Loop Modulation and Structure-Guided Sequence Alignment for Enhanced Lactulose Synthesis. - Mao, Xinyan; Zhang, Hongbin; Hu, Chao; Ma, Chunhui; Hu, Xueqin; Yang, Jingwen (Biomolecules (2218-273X), 2026)