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. 2020 Apr 9;25(7):1718. doi: 10.3390/molecules25071718

Table 4.

Effect of olive and fig leaves extracts in the growth rate and maximal optical density of probiotic bacteria strain.

Condition Composition Method Specific Growth Rate (h−1) ‡MOD
Lactobacillus casei
Bacteria water - 0.392 ± 0.001 a 2.797 ± 0.027 a
Bacteria EtOH - 0.383 ± 0.003 a 2.837 ± 0.018 ab
Olive leaves water CE 0.398 ± 0.016 a 2.857 ± 0.058 ab
UAE 0.388 ± 0.005 a 2.884 ± 0.033 ab
EtOH CE 0.383 ± 0.008 a 2.904 ± 0.071 abc
UAE 0.398 ± 0.007 a 2.852 ± 0.083 ab
Fig leaves water CE 0.437 ± 0.002b 3.077 ± 0.023 c
UAE 0.441 ± 0.003b 3.024 ± 0.041 bc
EtOH CE 0.390 ± 0.009 a 2.873 ± 0.062 ab
UAE 0.389 ± 0.007 a 2.885 ± 0.006 abc
Bifidobacterium lactis
Bacteria water -- 0.234 ± 0.021 a 2.451 ± 0.052 a
Bacteria EtOH 0.236 ± 0.016 a 2.463 ± 0.095 a
Olive leaves water CE 0.255 ± 0.008 a 2.634 ± 0.081 a
UAE 0.223 ± 0.005 a 2.461 ± 0.013 a
EtOH CE 0.233± 0.011 a 2.492 ± 0.047 a
UAE 0.229 ± 0.017 a 2.481 ± 0.008 a
Fig leaves water CE 0.252 ± 0.003 a 2.481 ± 0.013 a
UAE 0.263 ± 0.007 a 2.540 ± 0.036 a
EtOH CE 0.217 ± 0.006 a 2.386 ± 0.050 a
UAE 0.234 ± 0.005 a 2.476 ± 0.012 a

Note: EtOH = Ethanol: * Method: Conventional extraction (CE) and ultrasound-assisted extraction (UAE). ‡MOD: Maximal optical density measured at 595 nm. Different letters in the same column represent statistically significant differences (p < 0.05).