Original ResearchPublished 12 October 2026Novel indole derivatives containing a thiosemicarbazide moiety as potential antioxidant agents for fresh beef preservationTao Wang · Lingling Xiao · Yanling Ren · Maozhao Wu · Yongfei Liu · Jian Tang · Shoumei Wan · Jing PengFrontiers in Chemistrydoi 10.3389/fchem.2026.1994186