Total oxalate

Soluble oxalate

(% soluble of total oxalate)

Insoluble

oxalate

Raw rhubarb

726.1 ± 1.89

414.0 ± 8.18 (57%)

312.1 ± 5.04

Rhubarb juice

773.2 ± 22.91

221.9 ± 5.94 (29%)

551.3 ± 15.03

Agar

3077.5 ± 39.38

478.3 ± 21.76 (16%)

2599.2 ± 17.62

Guar gum

749.8 ± 14.28

70.8 ± 7.90 (9%)

679.0 ± 22.27