Strategies for improving production performance of probiotic Pediococcus acidilactici viable cell by overcoming lactic acid inhibition

AMB Express

Table 1 Viability of P. acidilactici in 500 mL shake flask at different lactic acid concentrations

Lactic acid added (g/L)	Lactic acid accumulated (g/L)^e	Final viable cell concentration (cfu/mL)
0	6.47 ± 0.23^d	9.1 × 10⁹ ± 0.12^a
5	11.33 ± 0.20^c	8.2 × 10⁷ ± 0.35^b
10	16.52 ± 0.18^b	8.4 × 10⁴ ± 0.27^c
15	21.89 ± 0.14^a	0.0

The results presented are the average of triplicate experiments and are expressed as mean ± standard deviation
^a,b,c,dMean values in the same row with different superscripts are significantly different from each other (P < 0.05)
^eLactic acid accumulated is the total of lactic acid added to the culture and lactic acid produced from fermentation