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The aim of this study was to investigate the antioxidant and antibacterial effect of green bell pepper essential oil for qualitative comparison of silver carp sausage with meat sausage during refrigeration and also to replace some of the nitrite sodium (NaNO2) used in meat products. The essential oil was extracted from green bell pepper by the Clevenger method and ascorbic acid, phenolic compounds, free radical scavenging (DPPH) tests were performed to determine the antioxidant and antibacterial power. The essential oil extracted in three concentrations of 0, 2, and 4% was added to sausage samples prepared from silver carp and meat. Samples were stored at 4 ° C for 30 days. Chemical tests (pH, TBA, and TVN) and microbial evaluation (TMC, PTC, coliform, and mold and yeast) were performed at intervals of 5 days for 30 days in 3 replications. Results of pH, TBA (mg MDA / Kg fat), TVN (mg N / 100g Flesh), TMC, Pseudomonas, coliform and mold and yeast (CFU/g) on ​​day 30 for control treatment of fish sausage (minimum shelf-life) were 7.63, 3.4, 45.3, 11.6, 11, 2.5, and 1.5, respectively, and meat sausage treatment containing 4% of green bell pepper essential oil (maximum shelf -life) were 7.35, 1.86, 34.5, 5.3, 4.9, 0.62, 0, respectively. The results showed that 4% green bell pepper essential oil can be used as a suitable natural preservative in meat and fish sausages.

Keywords: Green bell pepper, Sausage, Antioxidant, Quality

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