Fig. 2

Four enzyme activities involved in the xylose metabolism of Pediococcus pentosaceus SF11 addition with and without the addition of condensed tannins (CTs). CK: control group. CT: the addition of CTs at a minimum inhibitory concentration (MIC) of 1500 mg/L. a Lactate dehydrogenase (LDH). b Phosphoketolase (PK). c Transaldolase (TAL). d Transketolase (TKT). Different capital letters on columns represent significant differences with treatment (P < 0.05), while different lowercase letters on the columns represent significant differences with time (P < 0.05)