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The antioxidant potential of a novel stilbene analogue (5-hydroxy-2-[2-(3,5-dihydroxy-phenyl)-vinyl]-1-hexyl-pyridin-4-one) (named  SA ) along with its application in shrimp refrigeration was investigated. The antioxidant activity of  SA  was evaluated by determining the radical scavenging ability. Further, the shrimp preservative efficacy of  SA  was investigated on  Penaeus vannamei  stored at 4°C by determining the quality indicators. The shelf life of shrimp treated with  SA  was extended to 10 days, while the shelf life of shrimp treated with 4-hexylresorcinol (4-HR), kojic acid, and sterile saline was 9, 6, and 4 days, respectively. The shelf life of shrimp was further extended to 12 days when treated with  SA  in combination with 0.1% citric acid. The residue of  SA  in shrimp was found to be extremely low even after 12 days of storage. Furthermore, MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay indicated that  SA  was nontoxic to two cell lines.  SA  could find application in shrimp refrigeration.

A Novel Stilbene Analogue: Antioxidant Activity and Application in Controlling the Quality and Bacterial Growth of Shrimp Refrigerated at 4ºC