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9In this study, shrimp (Aristeus antennatus) immediately after trawling was treated with plant 10 extracts (rosemary and green tea), sodium metabisulphite solution and their combinations. After 11 dipping into the solutions, melanosis and selected quality changes of shrimp were investigated 12 during the storage at 4°C. Plant extracts were found effective in delaying melanosis in shrimps. 13Combinations of sodium metabisulphite and plant extracts were found more effective than those 14 groups separately treated with plant extracts. Plant extracts, sodium metabisulphite and 15 combinations showed lower trimethylamine and total volatile nitrogen values as compared to the 16 control group. It is concluded that use of plant extracts decreased the need for sodium 17 metabisulphite. 18

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