Skip to main content
. Author manuscript; available in PMC: 2020 Aug 1.
Published in final edited form as: Gut. 2019 May 10;68(8):1516–1526. doi: 10.1136/gutjnl-2019-318427

Table 1.

Molecular sizes of the sugar and other probe molecules

Probe molecule Mol. weight, Da Mol. diameter, Å, reported Mol. diameter, Å, estimated*
Rhamnose 164 8.2 6.9
Mannitol 182 6.7 7.2
Lactulose 342 9.5 9.7
Cellobiose 342 10.5 9.7
Sucralose 398 NA 10.4
Cr-EDTA 340 10.5 9.6
Dextran 4 kDa 4,000 NA 30.0
*

calculated based on the formula: radius=0.33*(MM^0.46), where MM=molecular mass

Å= ångström; Cr-EDTA=chromium complexed with ethylene diamine tetracetic acid, Da=dalton