Table 4. The antimicrobial activity of the gels against Listeria innocua during 48 h of storage at 4 °C.
| Gel sample |
N/(log CFU/mL)* | ||||||
|---|---|---|---|---|---|---|---|
| t/h | |||||||
| 0 | 24 | 48 | |||||
| Control | (3.8±0.2)a,B | (4.2±0.2)a,B | (5.6±0.5)a,A | ||||
| GEL | (3.2±0.6)a,B | (3.8±0.2)bcde,B | (4.8±0.4)bc,A | ||||
| GEL+LYS | (3.2±0.6)a,A | (3.52±0.4)ef,A | (3.3±0.2)fg,A | ||||
| GEL+GTE | (3.65±0.06)a,B | (3.9±0.38)bcd,B | (4.6±0.2)cd,A | ||||
| GEL+LYS+GTE | (3.4±0.1)a,A | (3.6±0.1)cdef,A | (3.4±0.1)f,A | ||||
| GEL/RS | (3.6±0.2)a,C | (4.1±0.1)ab,B | (5.06±0.03)b,A | ||||
| GEL/RS+LYS | (3.3±0.4)a,A | (3.4±0.3)f,A | (3.02±0.08)g,A | ||||
| GEL/RS+GTE | (3.0±0.7)a,B | (4.0±0.2)abc,A | (3.8±0.2)e,A | ||||
| GEL/RS+LYS+GTE | (3.5±0.2)a,A | (3.6±0.2)def,A | (3.05±0.07)g,B | ||||
| GEL/CW | (3.0±0.7)a,B | (4.1±0.1)ab,A | (4.4±0.2)d,A | ||||
| GEL/CW+LYS | (3.6±0.2)a,A | (3.58±0.08)def,A | (3.05±0.08)g,B | ||||
| GEL/CW+GTE | (3.4±0.4)a,A | (3.9±0.4)bcd,A | (3.03±0.05)g,A | ||||
| GEL/CW+LYS+GTE | (3.0±0.6)a,B | (3.8±0.2)bcdef,A | (3.28±0.03)fg,AB | ||||
Different lower-case letters in superscript in the same column indicate significant difference (p<0.05). Different superscripted capital letters in the same row indicate significant difference (p<0.05). *Values in the parentheses are presented as mean value±S.E. (N=3). GEL=gelatine, RS=rice starch, CW=candelilla wax, LYS=lysozyme, GTE=green tea extract