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Table 2 Minimal inhibitory concentrations (MICs) of fractions obtained from the solvent hydrolyzable of the methanol extract of Asarum heterotropoides root against harmful and nonpathogenic intestinal bacteria using a microtiter plate-based antibacterial bioassay

From: Growth-Inhibiting and morphostructural effects of constituents identified in Asarum heterotropoides root on human intestinal bacteria

  

MIC (mg/mL)

Gram-positive bacteriab

Gram-negative bacteriac

Materiala

Cd

Cm

Cp

Sa

Bfd

Ecd

St

ME

14.70 bA

7.35 cB

7.35 cB

14.70 bA

7.35 bB

14.70 bA

7.35 bB

HSF

7.35 cB

14.70 bA

7.35 cB

7.35 cB

3.67 cC

7.35 cB

3.67 cC

CSF

14.70 bA

14.70 bA

14.70 bA

7.35 cB

7.35 bB

14.70 bA

7.35 bB

EASF

7.35 cB

7.35 cB

14.70 bA

7.35 cB

1.83 dC

14.70 bA

7.35 bB

BSF

29.40 aB

58.80 aA

29.40 aB

29.40 aB

58.80 aA

58.80 aA

14.70 aC

WSF

NAe

NA

NA

NA

NA

NA

NA

  1. Means in a column followed by the same lowercase letter and means in a row followed by the same uppercase letter are not significantly different (P > 0.05; Bonferroni test).
  2. aME, methanol extract; HSF, hexane-soluble fraction; CSF, chloroform-soluble faction; EASF, Ethyl acetate-soluble fraction; BSF, butanol-soluble fraction; WSF, water-soluble fraction.
  3. bCd, C. difficile ATCC 9689; Cm, C. paraputiricum ATCC 25780; Cp, C. perfringens ATCC 13124; Sa, S. aureus ATCC 12600.
  4. cBf, B. fragilis ATCC 25285; Ec, E. coli ATCC 11775; St, S. enterica serovar Typhimurium ATCC 13311.
  5. dNonpathogenic bacteria.
  6. eNo activity.