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Table 1 MIC and MBC values of saponin fractions against the three halitosis bacteria (μg/mL)

From: Improved antibacterial effects of alkali-transformed saponin from quinoa husks against halitosis-related bacteria

Sample

P. gingivalis

C. perfringens

F. nucleatum

MIC

MBC

MIC

MBC

MIC

MBC

QS

> 2000

> 2000

> 2000

> 2000

> 2000

> 2000

AQS

500

2000

250

2000

250

2000

QS-30

> 2000

> 2000

> 2000

> 2000

> 2000

> 2000

ATS-30

> 2000

> 2000

> 2000

> 2000

> 2000

> 2000

QS-80

1000

> 2000

1000

2000

1000

> 2000

ATS-80

62.5

250

31.3

250

31.3

125

Chlorhexidine

16.0

125

16.0

125

8.0

62.5

  1. MIC minimum inhibitory concentration, MBC minimum bactericidal concentration, QS quinoa saponin, ATS alkali-transformed quinoa saponin, QS-30 and ATS-30 were the 30% methanol-eluted fractions, and QS-80 and ATS-80 were the 80% methanol-eluted fractions from QS and ATS, respectively