Figures & data
Fig. 1. Structures of quercetin (A) and quercetin 4′-O-sulfate (B), and a typical chromatogram of quercetin metabolites in the frass of 3rd and 6th instar M. separata larvae (C).
Note: LC/MS selected ion chromatograms ([M–H]−) of quercetin 3-O-glucoside (m/z 463), quercetin (m/z 301), quercetin 4′-O-sulfate (m/z 381), and the total ion chromatogram (TIC) are shown.
![Fig. 1. Structures of quercetin (A) and quercetin 4′-O-sulfate (B), and a typical chromatogram of quercetin metabolites in the frass of 3rd and 6th instar M. separata larvae (C).Note: LC/MS selected ion chromatograms ([M–H]−) of quercetin 3-O-glucoside (m/z 463), quercetin (m/z 301), quercetin 4′-O-sulfate (m/z 381), and the total ion chromatogram (TIC) are shown.](/cms/asset/cf7e2fdc-ce43-4273-bf55-89e1fe7ca6db/tbbb_a_877835_f0001_b.gif)
Fig. 2. Amounts of quercetin metabolites identified in the frass of 3rd (left) and 6th (right) instar larvae fed the 1% quercetin diet (mean ± SD, n = 5).
Note: Quercetin 3-O-glucoside (Q3G), quercetin (Q), and quercetin 4′-O-sulfate (Q4′S) are shown. Different letters represent significant differences (p < 0.05, Tukey–Kramer HSD test for multiple comparisons).
Fig. 3. Amounts of quercetin 4′-O-sulfate produced by in vitro incubation with the substrates and homogenates of each part of 6th instar larvae (mean ± SD, n = 5).
Note: Different letters represent significant differences (p < 0.05, Tukey–Kramer HSD test for multiple comparisons).
