3.3. Biochemical identification
A scoring-based test system for Haemophilus and Neisseria
species showed NHP1 as K. denitrificans at the highest probability
(12% in Table 1). Since other species name having the similar score
was not presented by the ID test, the isolate was identified as
K. denitrificans. Biochemical features of NHP1 were almost identical
to those of K. denitrificans strains, ATCC33394 and KDY1, except for
catalase activity and acid production from glucose. The scoring
system diagnosed the NHP1 isolate as K. denitrificans, consistent
with the sequencing result.