Microbiology and Spoilage Trail in Nile Perch (Lates niloticus), Lake ...

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LIST OF TABLES
TABLE 1: NILE PERCH EXPORT PROCESSING FLOW DIAGRAM FROM UP-STREAM TO
IMPORTERS AND ASSOCIATED QUALITY CONTROL MEASURES. ................................................ 4
TABLE 2: RASFF NOTIFICATION: COUNTRY OF ORIGIN TANZANIA (EC, 2006). ................................. 7
TABLE 3: IDENTIFICATION TEST OF GRAM-NEGATIVE BACTERIA ..................................................... 13
TABLE 4: TYPICAL SPOILAGE COMPOUNDS DURING SPOILAGE OF FRESH FISH STORED
AEROBICALLY PACKED IN ICE OR AT AMBIENT TEMPERATURE, (SOURCE: HUSS, H. 1995).
..................................................................................................................................................................... 13
TABLE 5: STAGES OF SPOILAGE OF FRESH FISH STORED IN MELTING ICE (SOURCE: ICMSF,
(1980B). ....................................................................................................................................................... 17
TABLE 6: CARDINAL TEMPERATURE FOR MICROBIAL GROWTH (ADAMS AND MOSS, 2008). ...... 20
TABLE 7: GENERA THAT INCLUDE PSYCHROTROPHIC BACTERIA (ICMFS, 1980A) ......................... 20
TABLE 8: METHODS FOR DETERMINATION OF THE CONTENT OF BACTERIA IN SEAFOOD (HUSS,
1995) ............................................................................................................................................................ 24
TABLE 9: COMMONLY USED AGAR MEDIA FOR ENUMERATION AND DETECTION OF BACTERIA
ASSOCIATED WITH FISH SPOILAGE, (HOVDA, 2007). ..................................................................... 26
TABLE 10: FRESHNESS RATINGS USING THE QUALITY ASSESSMENT SCHEME USED TO
IDENTIFY THE QUALITY INDEX DEMERIT SCORE (LARSEN ET AL. 1992) MODIFIED. ............ 33
TABLE 12: MICROORGANISMS OF SURFACE LAKE WATER ................................................................... 40
TABLE 13: PATHOGENIC MICROORGANISMS OF SURFACE WATER .................................................... 40
TABLE 14: MICROORGANISMS OF SEDIMENTS ......................................................................................... 41
TABLE 15: PATHOGENIC MICROORGANISMS OF SEDIMENTS............................................................... 41
TABLE 16: PATHOGENIC MICROORGANISMS ON NILE PERCH SKIN. .................................................. 42
TABLE 17: MICROORGANISMS OF NILE PERCH GUTS ............................................................................. 42
TABLE 18: PATHOGENIC MICROORGANISMS OF NILE PERCH GUTS ................................................... 42
TABLE 19: WHOLE NILE PERCH SWABS BEFORE AND AFTER WASH AT ESTABLISHMENTS. ....... 50
TABLE 20: ON LINE NILE PERCH FILLETS BEFORE AND AFTER WASH AT ESTABLISHMENTS. ... 51
TABLE 21: SHELF LIFE (ESTIMATED) AND SPOILAGE MICRO FLORA OF ICED WHOLE NILE
PERCH AND CHILLED FILLETS STORED AT 0-3 O C ........................................................................... 57