From: Saccharide analysis of onion outer epidermal walls
µg/mg dry weight
TMS methyl glycosides
%
Methyl alditols
Glc
14.5
2
223
45
GalA
531
77
41
8
Gal
110
16
135
27
Xyl
15.5
37
7
Rha
4.5
1
15
3
Ara
Man
11.8
33
Total
691.8
100
500