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Table 1 The yield and physicochemical properties of polysaccharide fractions from Dendrobium officinale stems

From: Physicochemical properties of polysaccharides from Dendrobium officinale by fractional precipitation and their preliminary antioxidant and anti-HepG2 cells activities in vitro

Samples

DOP-40

DOP-50

DOP-60

DOP-70

Yield (wt%)

59.31 ± 0.21

23.82 ± 0.23

7.55 ± 0.31

5.25 ± 0.09

Neutral sugar content (wt%)

18.38 ± 1.51

28.38 ± 1.53

13.67 ± 2.78

9.38 ± 0.71

Protein content (wt%)

4.28 ± 0.06

1.68 ± 0.09

1.12 ± 0.03

0.34 ± 0.02

Molecular weight (kDa)

999 ± 0.03

657 ± 0.02

243 ± 0.02

51 ± 0.01

Monosaccharide composition

d-Mannose/d-Glucose (molar ratio)

6.32 ± 0.15

8.67 ± 0.16

8.34 ± 0.13

8.82 ± 0.05