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. 2018 Oct 13;11(10):1973. doi: 10.3390/ma11101973

Table 4.

Results of the antibacterial tests performed according to ISO 16649-2/2007.

Sample Escherichia
Coli
Listeria
Monocytogenes
Salmonella
Typhymurium
24 h 48 h 24 h 48 h 24 h 48 h
Inhibition (%)
PLA Hot-Pressed
PLA -H 26 42 29 32 22 29
LA 43 70 49 54 37 49
LC 68 80 37 63 100 100
HA 50 77 60 100 51 78
HC 80 91 77 100 100 100
PLA NATIVIA® NTSS 40 µm 1
H-NATIVIA 10 53 16 58 35 71
HA- NATIVIA 49 82 47 100 55 94
HC- NATIVIA 53 78 53 100 65 90

1 As the antibacterial tests for the PLA hot-pressed samples evidenced the highest antimicrobial efficiency for the samples containing Chit-H, the commercial NATIVIA® foils were coated only with formulations containing Chit-H.