If the jug only contains pasturized juice & nothing else, that is the ingredient label. Since pasturization kills the wild yeast, there is no need for preservatives.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk