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Table 2 Alkaloid contents in different types of yellow rice wine and prepared alcoholic products (% by dry weight)

From: A study on the processing technology for Rhizoma Coptidis

Variety and alcohol of yellow rice wine

Epiberberine (%)

Coptisine (%)

Palmatine (%)

Berberine (%)

Dry type,16%

1.33

2.26

2.23

7.95

Semi-dry,15%

1.29

2.22

2.21

7.98

Semi-Swee,10%

1.36

2.28

2.22

7.89

Sweet,11.5%

1.34

2.29

2.23

8.01

RSD%

2.22

1.37

0.44

0.65