Tomato paste, concentrated triple

In a very recent study, Consonni et al. (2009) evaluated the geographical discrimination of Chinese and Italian triple concentrate tomato paste samples by 1H NMR (a typical 1H NMR spectrum with expansion and assignments is reported in Fig. 4.18) and multivariate statistical analysis. Despite a good market for imported triple concentrated tomato paste from China, the biggest world tomato producer, very few indications suggest the possibility of identifying the origin and the quality of different... 

Notwithstanding that different tomato cultivars and ripening stages were usually used to obtain the final product, the authors achieved an excellent discrimination of triple-concentrated tomato paste samples... 

FIGURE 4.19 PCA score plot performed by considering all triple concentrated tomato paste samples filled triangles and dots represent Italian and Chinese samples, respectively. PCI = 38.0%, PC2 = 21.9%. R2 = 79.6%, and Q2 = 56.0%. (From Consonni et al, 2009.)... 

Consonni, R., Cagliani, L. R., Stocchero, M., and Porretta, S. (2009). Triple concentrate tomato paste Discrimination between Italian and Chinese products. J. Agric. Food Chem. 57, 4506 4513. 

Consonni R, Cagliani LR, Stocchero M, Porretta S. Triple concentrated tomato paste discrimination between Italian and Chinese products. J Agric Food Chem 2009 57 4506 13. 

---