The preservative used in this product is sodium benzoate.

本用的防腐剂为。

Sodium benzoate, for example, has been found to react with ascorbic acid — aka Vitamin C — to produce benzene, a hydrocarbon that's known to cause cancer.

例如，研究发现与抗坏血——也就是维生素 C——反应生，而是一种已知会导致癌症的碳氢化合物。

The company said it recently shifted away from this preservative combination to one with sodium benzoate.

该公司表示，它最近已从这种防腐剂组合转向。

Of course, there were plenty of attempts to preserve the sauce, including using the preservative benzoate.

当然， 有很多尝试来保存这种酱料，包括用防腐剂。

And when benzoate was finally banned in 1906, the ketchup producers needed to find another solution.

当在1906年最终被禁用后，番茄酱生商需要找到另一种解决方案。