Sorbitol is not a preservative, your juices probably had sorbic acid which is used as an anti-fungal, but for a good reason:
I grew up in a region where historically the rates of liver cancer were much higher than the national average: The summers there are long and extremely humid, perfect breeding conditions for mildrew in the food supply and people are constantly exposed to aflatoxin, a Group 1 carcinogen[1]. However thankfully the situation is improving as people realise the danger and use preservatives when it is appropriate to do so. Although having lived there for quite a long time I am still more likely to develop liver cancer than you.
Basic food chemistry is not fraud, if anything it saved many lives.