Inhibition of Aldose Reductase by Gentiana lutea Extracts

Table 1

Constituents detected in G. lutea methanol extract using MALDI-TOF.

Analyte	Monitored m/z [M+H]^+
Gentisin	259.5534
Bellidifolin-8-O-glucoside	437.6503
Demethylbellidifolin-8-O-glucoside	423.9371
Isovitexin	433.8520
Swertiamarin	375.6206
Amarogentin	587.1917
Gentiopicroside^*	379.7141

^*Gentiopicroside pseudomolecular ion is adduct with Na⁺.