The Jambulor jambolan has been used for many years in traditional Indian medicine as treatment for various diseases for example, diabetes mellitus, as well as bactericide. This study aimed to determine the conductivity in different samples of a freeze-dried aqueous extract of Syzygium jambolanum. The readings of the electrical voltages of the samples subjected to different treatment conditions were carried out in a pH meter. Depending on the performed statistical analysis could be noticed a significant difference (p <0.001) among all samples analyzed groups. In view of the results obtained, it can be suggested that the behavior related to changes in the electrical voltage values of the samples of an aqueous extract of Syzygium jambolum, is related to the presence of molecules derived from flavonoids with antioxidant properties, which can be molecules anthocyanin, which may be present in the samples of said plant extract Studied.