Figure 3.

Bilberry (A, BL1), blueberry (B, BB2), mixed berries (C, BB8), and suspicious bilberry (D, BL6) dietary supplement anthocyanin profiles. BL1 (A) and BL2 (B) samples presumed authentic based on anthocyanin profile. Trace C (BB8) was difficult to determine authenticity from anthocyanin profile, since it was a mixture of four blueberry species (reported) and two addition blueberry ingredients (species unspecified). Trace D (BL6) was probably blueberry, not bilberry, based on its anthocyanin profile (compare the peak areas to B; see body of manuscript for more details). Peak assignments are 1 – delphinidin‐3‐galactoside, 2 – delphinidin‐3‐glucoside, 3 – cyanidin‐3‐galactoside, 4 – delphinidin‐3‐arabinoside, 5 – cyanidin‐3‐glucoside, 6 – petunidin‐3‐galactoside, 7 – cyanidin‐3‐arabinoside, 8 – petunidin‐3‐glucoside, 9 – peonidin‐3‐galactoside, 10 – petunidin‐3‐arabinoside, 11 – malvidin‐3‐galactoside, 12 – peonidin‐3‐glucoside, 13 – malvidin‐3‐glucoside, 14 – peonidin‐3‐arabinoside, and 15 – malvidin‐3‐arabinoside.