Table 2.
Onion varieties | Storage months | Diameter of growth inhibition zone (mm) | |||
---|---|---|---|---|---|
| |||||
Gram-negative | Gram-positive | ||||
|
|
||||
E. coli | P. aeruginosa | S. aureus | B. cereus | ||
Marusino330 | Fresh | 8.0 ± 0.6bc | nd | 10.0 ± 0.8bc | 10.0 ± 0.8ac |
After 3 months | 9.0 ± 0.8ab | nd | 11.2 ± 0.7ac | 11.2 ± 0.7ab | |
After 6 months | 6.0 ± 0.3ac | nd | 8.0 ± 0.6ab | 8.0 ± 0.6abc | |
Sinsunhwang | Fresh | 7.0 ± 0.6a | nd | 10.2 ± 0.6b | 10.0 ± 0.8ab |
After 3 months | 7.8 ± 0.5bc | nd | 11.3 ± 0.7ab | 11.2 ± 0.7b | |
After 6 months | 5.6 ± 0.4c | nd | nd | 8.0 ± 0.6ac | |
Happyhong | Fresh | 10.2 ± 0.6ab | 10.2 ± 0.6ab | 12.2 ± 0.9c | 10.0 ± 0.8bc |
After 3 months | 11.5 ± 0.7ac | 11.5 ± 0.7ac | 13.3 ± 0.8ab | 11.2 ± 0.7ab | |
After 6 months | 8.0 ± 0.5ab | 8.0 ± 0.5a | 10.0 ± 0.8ac | 8.0 ± 0.6ab | |
Unijinara | Fresh | 11.5 ± 0.8ac | 10.2 ± 0.6bc | 13.2 ± 0.6ab | 10.0 ± 0.6ab |
After 3 months | 11.8 ± 0.9c | 11.5 ± 0.7ac | 13.5 ± 0.9ac | 11.2 ± 0.4bc | |
After 6 months | 9.0 ± 0.8ab | 8.0 ± 0.5ac | 10.0 ± 0.6c | 8.0 ± 0.6ac | |
Mokpo24ho | Fresh | nd | nd | nd | nd |
After 3 months | nd | nd | nd | nd | |
After 6 months | nd | nd | nd | nd | |
Mokpo21ho | Fresh | nd | nd | nd | nd |
After 3 months | nd | nd | nd | nd | |
After 6 months | nd | nd | nd | nd | |
Standard | Ampicillin | 20.0 ± 1.2 ab | nd | 22.0 ± 0.9 bc | 21.0 ± 0.8 bc |
Results represent mean ± SD of three independent experiments.
Different letters in the same column indicate significant differences (ANOVA followed by the Dunn–Sidak’s multiple range tests at p = 0.05).