Table 1: Minimal inhibitory concentrations (MIC) and minimal bactericidal concentrations (MBC) of HST extract.

Bacterial strainMIC MBC
(mg/mL)(mg/mL)

Gram-negative oral bacteria
Aggregatibacter actinomycetemcomitans Y4>10NT
Campylobacter rectus ATCC33238>10NT
Capnocytophaga ochracea ATCC27282>10NT
Fusobacterium nucleatum ATCC255861.251.25
Porphyromonas gingivalis ATCC332772.52.5
Porphyromonas gingivalis 3811.251.25
Porphyromonas endodontalis ATCC35406<0.625<0.625
Prevotella intermedia ATCC256112.52.5
Prevotella melaninogenica ATCC258452.52.5
Tannerella forsythia ATCC430375.0ND
Treponema denticola ATCC354055.0ND
Veillonella parvula ATCC17745>10NT
Gram-negative bacteria
Bacteroides thetaiotaomicron JCM5827>10NT
Campylobacter jejuni ATCC294281010
Escherichia coli K12>10NT
Porphyromonas asaccharolytica JCM63262.52.5
Gram-positive oral bacteria
Actinomyces viscosus ATCC19246>10NT
Enterococcus faecalis 4532D>10NT
Lactobacillus casei JCM1133>10NT
Streptococcus anginosus IS57>10NT
Streptococcus gordonii ATCC10558>10NT
Streptococcus mutans 109c>10NT
Streptococcus salivarius JCM5707>10NT
Gram-positive bacteria
Bacillus subtilis ATCC9372>10NT
Bifidobacterium longum JCM122210ND
Staphylococcus aureus ATCC6738>10NT
Streptococcus pyogenes ATCC12348>10NT
Fungus
Candida albicans JCM2085>10NT

NT: not tested; ND: not detected.