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. Author manuscript; available in PMC: 2013 Nov 25.
Published in final edited form as: Food Chem. 2012 Apr 27;135(2):10.1016/j.foodchem.2012.04.110. doi: 10.1016/j.foodchem.2012.04.110

Fig. 2.

Fig. 2

Protocatechuic acid (PCA) and phloroglucinol aldehyde (PGA) are not primary degradation products of cyanidin glycosides in saliva. Panel A: Degradation of cyanidin chloride upon addition to and incubation in acidified water and human saliva. Panel B: Minimal PCA accumulates in acidified water and saliva during degradation of cyanidin chloride. Samples were incubated in saliva at 37 °C for 0 and 60 min. Data are mean ± SD, n≥3. The presence of different superscript above error bars denotes significant (p < 0.05) differences. Panel C: Recovery of exogenous PCA and PGA after incubation in human saliva at 37 °C for 60 min. Data are mean ± SD, n = 6.