Type of Addition
Essential Oil
Day 0 Count (log10 CFU/g)
Day 7 Count (log10 CFU/g)
Day 14 Count (log10 CFU/g)
Day 21 Count (log10 CFU/g)
Total Growth (Δlog10 CFU/g)
Increase in counts/day
(Δlog10 CFU/g per day)
a
Product
Control (0.0%)
3.3
3.3
N.A.
b
6.7
3.50
0.173 a
Product
Cinnamon (0.05%)
3.2
3.2
N.A.
6.6
3.40
0.169 a
Product
Cinnamon (0.1%)
3.1
3.1
N.A.
6.9
3.80
0.192 a
Product
Spearmint (0.5%)
3.0
3.0
N.A.
6.0
3.00
0.151 a
Coating
Control (0.0%)
3.2
3.2
6.2
6.9
3.70
0.211 a
Coating
Cinnamon (0.05%)
3.3
3.3
6.3
6.7
3.40
0.199a
Coating
Cinnamon (0.1%)
3.3
3.4
6.1
6.8
3.60
0.202a
Coating
Spearmint (0.5%)
3.4
3.4
6.3
6.5
3.20
0.185 a
a
Increase in counts per day with a different letter are significantly different (p<0.05) from rates for the same type of addition.
b
N.A.: Not Available.
Table 6:
Increase in counts of
Penicillium roqueforti
in extruded pet food products
