Table 2.

Compound name, molecular weight, monosaccharide composition, structure of purslane polysaccharides and analytical technique.

Compound Name	Molecular Weight	Monosaccharide Composition	Structure	Analytical Technique	Ref.
RN	8.3 kDa	Glu:Man:Arab:Gal = 0.1:38.8:13.7:5.3	RN contained 1,4-linked Manp, 1,4-linked Glcp and 1,2,4-linked Glcp residues with small amounts of 1,4,6-linked Manp, 1,4,6-linked Glcp and terminal-linked Galp residues, and Araf residue was suggested to be mainly present as nonreducing terminal-linked residues.	GC, HPLC	[19]
RA	58 kDa	Ara:Gal:Rha:Xyl:GlcA = 23.2:67.0:2.8:2.9:4.1	RA consists of a-1,3-linked β-d-Galp main chain, partially substituted at C-6 by 1,6-linked β-d-Galp side chains. Moreover, GlcA was present in RA in the forms of terminal-linked and 1,4-linked residues.
RP	87 kDa	GalA:Gal:GlcA:Ara:Rha = 67.8:11.3:10.6:5.8:4.3	RP consists of a-1,4-linked GalA residues that are highly methylated and partially acetylated.
POP1-C	55.8 kDa	N/A	N/A	FT-IR, NMR	[29]
Purslane polysaccharide	N/A	Glu:Gal = 2.3:1	N/A	HPLC, PDA	[16]
POP-T	1.55 × 104 kDa	Gal:Ara:Rha = 50.92:32.32:16.75	There were hydroxyl groups, C-O, β-configurations and uronic acid in the structure of POP-T.	GC, HPGPC, FT-IR	[15]
POP-S	24.6 kDa	Man:Ara:Glu:Gal = 2.1:5.2:2.1:11.2	N/A	GC, HPGPC	[22]
POP-H	11 kDa	Man:Rha:GlcA:GalA:Glu:Gal:Ara = 5.3:5.9:1.3:27.6:1:18.8:14.6	N/A	HPLC, IR, HPGPC	[26]
POL-P3b	0.253688 kDa	Glu:Gal= 0.75:1.00	POL-P3b structure had hydroxyl groups and β-glucoside bonds.	HPLC, UV, IR	[18]
POP-L	8.03 kDa	Rha:Ara:Glc:Gal = 1:1.16:0.23:0.59	N/A	N/A	[35]
POPW-HG	41.2 kDa	Galacturonic acid = 95% A trace of Man and Rha	POPW-HG consists of 1, 4-GALA with hydroxyl, uronic acid and pyranose rings.	HPSEC, GC, NMR, FI-IR	[21]
CPOP	7.3 kDa, 11.9 kDa, 93 kDa	Rha:Ara:Xyl:Man:Glu:Gal = 1:1.1:1.3:1.9:2.4:3.4:1	N/A	GC, HPSEC	[24]

N/A means not mentioned.