Antioxidant and Antimicrobial Capacity of Greek Commercial Pomegranate -Based Juices

Eleni.Ch. Zografou, Aristidis Kallimanis, Konstantoula Akrida- Demertzi, Panagiotis G. Demertzis
2017 IOSR Journal of Environmental Science Toxicology and Food Technology  
Pomegranates have health-promoting benefits because of their polyphenol constituents. The aim of this study was the description of some quality characteristics of five commercial pomegranate-based juices. Specifically the total phenolic content and the antioxidant capacity were determined using the Folin-Ciocalteu method and the DPPH method respectively as well as the antibacterial activity of the juices against pathogens e.g. E. coli, S. aureus and L. monocytogenes. The results showed that
more » ... ral pomegranate juice contains less phenolics than blackberry and strawberry juice. On the contrary, grape juice contains less phenolic compounds than pomegranate juice from concentrate. It seems that juices from concentrate had a higher phenolic content than the natural juices. All juices showed high antioxidant capacity and the correlation between antioxidant activity and total phenolic content was confirmed. The majority of the juices induced a remarkable growth inhibition of the pathogens and namely those from concentrate exhibited the strongest antibacterial activity.
doi:10.9790/2402-1103025157 fatcat:duvqkbvqfbaszgiv5k7u6ynqx4