Figure 2.
Chromatograms (fluorescence detection; 250/395 nm) of the AQC-derivatives obtained from (A) an amino acid standard mixture and (B) the acidic hydrolysate of a wheat IDF sample [without the internal standard norleucine (NorLeu)]. AQC, 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate; IDF, insoluble dietary fiber.