UV-C Radiation as a Factor Reducing Microbiological Contamination of Fish Meal

Table 4

Changes in the number of Enterococcus spp. depending on the surface density of the UV-C radiation dose.

UV-C dose (J·m^−2)	Number of enterococci (MPN·g^−1)
	Type of fish meal
	Salmon	Cod
Control	2.5×10^5	2.5×10^6
10	9.5×10^3	4.5×10^4
25	2.5×10^3	4.5×10^3
50	2.5×10^3	4.5×10^3
75	2.5×10^2	4.5×10^2
100	9.5×10^1	2.5×10^2
400	n.d.*	n.d.

∗ n.d.: not detected.