Abstract:To detect the hydrogen sulfide（H2S）produced from meat spoilage，the Ag nanoparticle-loaded hybrid glycerogel composed of dialdehyde starch，chitosan，and polyvinyl alcohol was prepared.The dialdehyde starch with strong reducing groups was obtained by oxidization reaction of cassava starch.Chitosan and polyvinyl alcohol were used as the cross-linking agents，and glycerin as the solvent.Through cross-linking reaction and in-situ reduction reaction，the Ag nanoparticle-loaded hybrid gels were obtained.The resulting material had high mechanical strength and shape stability，as well as a fast and efficient response to H2S，resulting in a distinct color change that can be used as the intelligent packaging material for monitoring the quality of chicken breast and pork tenderloin.