Table 3 The main components and carbohydrate composition after pretreatment with acid hydrolysis of wild duckweed Landoltia punctata (before fermentation: 0 h)

Main components

Dried duckweed

26.64%

23.71%

31.31%

1.89%

Fresh duckweed

3.81%

3.12%

4.32%

0.038%

Pretreatment sample

Glucose

xylose

Galactose

Fructose

Arabinose

Dried duckweed^a

5.22 ± 0.28

1.03 ± 0.055

0.49 ± 0.088

0.72 ± 0.21

0.46 ± 0.24

Fresh duckweed^a

0.61 ± 0.14

0.094 ± 0.11

0.044 ± 0.013

0.121 ± 0.016

0.094 ± 0.007