Study on microbiological and chemical quality of fish balls from the market
1998
Pimporn Tangmaetakul, Siam Univ., Bangkok (Thailand). Faculty of Science. Dept. of Food Technology
Contamination of microorganisms and borax was determinated for 9 samples from 2 markets, Yauwarat and Bangkae markets. Seven samples were found to contain the total amount of microorganisms more than the standard of Department of Medical Science. By the standard, the microorganisms should be found less than 1x10**(6) colonies/gram. Coliform bacteria and E.coli, the index of productivity hygiene, were found to excess the limit of quality standard index which should be less than 2.2 colonies/gram. Staphylococcus aureus, Salmonella spp. and Vibrio parahaemolyticus, food poisoning microorganisms, were determinated. S. aureus was found in 9 samples less than the limitation 1x10**(4) colonies/gram. On the other hand, Salmonella spp. was found in only 2 samples. According to the quality index, Salmonella spp. must not be found. V. parahaemolyticus was found in 3 samples which have excess 3 colonies/gram whereas it must be found less than 3 colonies/gram. In addition, borax, i.e. a firming and crisping agent, was not found in all samples.
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