Citrexindisinfectionofshrimps
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1. The document evaluates the antimicrobial effectiveness of Citrex, an organic acid complex, compared to chlorine solution as disinfectants during shrimp packing. 2. Microbial testing of shrimp samples found that Citrex at 400ppm reduced mesophilic bacteria and coliforms more than chlorine at 200ppm. 3. Further research is needed, but initial results indicate Citrex may be more effective at reducing microbes on shrimp than chlorine solutions.
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- 1. EVALUATION OF CITREX® ACTIVITY VS . A CHLORINE SOLUTION AS A DISINFECTANT DURING RAW SHRIMP PACKING PROCESS
- 7. 400 ppm Citrex Assay 1 Assay 2 Sample Mesophylls Sample Mesophylls Sample 1 3,000 Sample 1 400 Sample 2 4,000 Sample 2 4,000 Sample 3 1,800 Sample 3 3,000
- 8. 200 ppm Chlorine Assay 1 Assay 2 Sample Mesophylls Sample Mesophylls Sample 1 7,800 Sample 1 11,000 Sample 2 12,000 Sample 2 4,500 Sample 3 16,000 Sample 3 7,000
- 9. Farm shrimp 400 ppm Citrex Assay 1 Assay 2 Sample Mesophylls Sample Mesophylls Sample 1 520 Sample 1 280 Sample 2 310 Sample 2 1,500 Sample 3 5,400 Sample 3 1,100 Sample 4 2,700 Sample 4 950
- 10. 200 ppm Chlorine Assay 1 Assay 2 Sample Mesophylls Sample Mesophylls Sample 1 3,500 Sample 1 1,500 Sample 2 4,700 Sample 2 2,600 Sample 3 1,900 Sample 3 2,200 Sample 4 3,300 Sample 4 1,100
- 15. Coliforms - 400 ppm Citrex Assay 1 Assay 2 Sample Coliforms E. coli Sample Coliforms E. coli Sample 1 90 4 Sample 1 90 4 Sample 2 23 4 Sample 2 23 4 Sample 3 4 < 3 Sample 3 4 < 3
- 16. 200 ppm Chlorine Assay 1 Assay 2 Sample Coliforms E. coli Sample Sample E. coli Sample 1 200 21 Sample 1 200 9 Sample 2 200 3 Sample 2 200 3 Sample 3 200 40 Sample 3 200 9
- 17. Coliform Assays: Only farm shrimp, 400 ppm Citrex (March) Assay 1 Assay 2 Sample Coliforms E. coli Sample Coliforms E. coli Sample 1 11 < 3 Sample 1 9 < 3 Sample 2 7 <3 Sample 2 4 <3 Sample 3 3 < 3 Sample 3 11 3 Sample 4 21 3 Sample 4 9 3
- 18. Farm Shrimp - 200 ppm Chlorine Assay 1 Assay 2 Sample Coliforms E. coli Sample Coliforms E. coli Sample 1 11 <3 Sample 1 9 4 Sample 2 70 7 Sample 2 15 3 Sample 3 9 3 Sample 3 <3 <3 Sample 4 21 <3 Sample 4 23 11
- 19. GENUS DETERMINATION Salmonella spp.
- 23. Salmonella spp. Research 400 ppm Citrex Assay 1 Assay 2 Sample Salmonella spp. Sample Salmonella spp. Sample 1 Negative Sample 1 Negative Sample 2 Negative Sample 2 Negative Sample 3 Negative Sample 3 Negative
- 24. Sea shrimp - Salmonella 200 ppm chlorine Assay 1 Assay 2 ID Sample Salmonella spp. Sample Salmonella spp. Sample 1 POSITIVE Sample 1 POSITIVE Salmonella enteritidis Sample 2 POSITIVE Sample 2 POSITIVE Salmonella enteritidis Sample 3 Negative Sample 3 Negative
- 26. Sea shrimp – Vibrio: 400 ppm Citrex Assay 1 Assay 2 Sample Vibrio spp. Sample Vibrio spp. Sample 1 Negative Sample 1 Negative Sample 2 Negative Sample 2 Negative Sample 3 Negative Sample 3 Negative
- 27. Sea shrimp - Vibrio 200 ppm Chlorine Assay 1 Assay 2 Sample Vibrio spp. Sample Vibrio spp. Sample 1 Negative Sample 1 Negative Sample 2 Negative Sample 2 POSITIVE Sample 3 Negative Sample 3 Negative