市販 加工食品類의 細菌汚染度 調査 = Findings on Bacterial Contamination of Manufactured Foods on Sail

다국어 초록 (Multilingual Abstract)

In order to findout the bacterial contamination of the manufactured foods on sail, we conducted bacteriological test on the 756 samples from January 10, 1983 to December 20, 1983.
We obtained some results therefrom.
1. Average numbers of Standard Plate Count(SPC) were 9.5×10 exp (4)/ml. As for the SPC, positive rates of tested foods were as follows : milk products 80.5 percent, meat products 76.7 percent, fish products 60.0 percent, breads 69.1 percent.
2. Average Coliform MPN were 2.4×10 exp (4)/ml. As for the Coliform MPN, the positive rates were as follows : milk products 41.7 percent, fish products 33.3 percent, meat products 28.3 percent, ice products 25.8 percent. But most canned foods obtained negative results.
3. Both positive rates of SPC and Coliform MPN were highest during summer season. As for the SPC, over 80 percent of the positive rates of breads, ice products, meat products and fish products revealed during summer season. But the seasonal fluctuation was not seen among milk products and meat products.
As for the Coliform MPN, over 50 percent of the positive rates of breads, meat products and fish products revealed during summer season.