Research Article

Safety Evaluation of Multiple Strains of Lactobacillus plantarum and Pediococcus pentosaceus in Wistar Rats Based on the Ames Test and a 28-Day Feeding Study

Table 2

Haematological findings in rats that were treated orally with multiple LAB strains for 28 days.

Parameters ControlMultiplex LAB strains
Normal doseHigh dose

WBC (103/μL)M8.13 ± 0.84a8.21 ± 1.12a8.33 ± 0.92a
F7.29 ± 2.66a9.5 ± 1.04a7.93 ± 1.66a

RBC (106/μL)M6.84 ± 0.15a6.64 ± 0.17a6.8 ± 0.22a
F6.83 ± 0.41a6.6 ± 0.31a6.75 ± 0.2a

Haemoglobin (g/dL)M14.69 ± 0.25a14.69 ± 0.18a14.94 ± 0.19b
F14.15 ± 1.06a14.4 ± 0.2a14.54 ± 0.29a

Haematocrit (%)M44.38 ± 0.1ab42.66 ± 1.24a44.28 ± 1.6b
F42.64 ± 1.06a41.8 ± 2.24a42.71 ± 1.95a

MCV (fL)M64.33 ± 2.41a64.25 ± 0.97a65.18 ± 3.56a
F62.4 ± 2.16a63.8 ± 5.77a63.29 ± 2.72a

MCH (pg)M21.44 ± 0.71a22.13 ± 0.18a21.99 ± 0.72a
F20.7 ± 1.05a21.9 ± 0.8b21.55 ± 0.54ab

MCHC (%)M33.23 ± 0.57a34.43 ± 0.9a33.79 ± 1.4a
F33.21 ± 1.88a34.5 ± 2.29a34.08 ± 1.08a

Platelet (103/μL)M720 ± 53.84a769.5 ± 146.9a832.25 ± 154.2a
F707.75 ± 281.54a774.3 ± 187.43a780.38 ± 91.37a


All values are represented as the mean ± S.D. of Wistar rat ( = 7-8/sex/dose).
WBC: mean white blood cell; RBC: mean red blood cell; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; MCHC: mean corpuscular hemoglobin concentration; M: male; F: female.
a,b compared with the control group by ANOVA followed by Dunnett’s test.