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. Author manuscript; available in PMC: 2009 Sep 22.
Published in final edited form as: J Agric Food Chem. 2009 Feb 11;57(3):820–825. doi: 10.1021/jf802601j

Table 2.

Amount of bioactive flavonoids (2, 3 & 4) present in the G. uralensis extracts

Compound Concentration
µg/ 100 mg of extract
Linearity (R2)
Liquiritin (1) 184 1.0
Liquiritigenin (2) 28 0.9987
Isoliquiritigenin (3) 30 0.9997
7, 4'-dihydroxyflavone (4) 8 0.9990