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Table 3 The R-group in the structure of each saponin monomer

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

Peak

R1

R2

R3

R4

1

-OH

COOCH3

-Glc

-Ara-Glc

2

-H

CH3

-Glc

-GlcA-Xyl

3

-OH

CH3

-Glc

-Ara-Glc

4

-OH

CH3

-Glc

-GlcA-Xyl

5

-OH

COOCH3

-Glc

-Ara

6

-OH

CH3

-Glc

-Ara

7

-H

CH3

-Glc

-GlcA

8

-OH

CH3

-H

-H

9

-H

CH3

-H

-H

  1. Ara: α-L-arabinopyranosyl; Glc: β-D-glucopyranosyl; GlcA: β-D-glucuronopyranosyl; Xyl: β-D-xylopyranosyl