The ink in newspaper is made from Soy beans. Your LR is shipped wrapped in newspaper. There's no antibacterial agent in any paper towels that I know of, unless you buy some special kind. If there was some there, by law (Federal Fungicide, Insecticidie, & Rodenticide Act) it would have to be disclosed to the consumer. They do use some antibacterial compounds in the manufacturing process, such as ozone and chlorine dioxide, but there is no residual in the paper and if there was it would be depleted very rapidly.
Gary
125 SPS, 75 gal. LPS/softie reef, 9 gal. Nano