In particular, methylparaben and propylparaben, and how are they used?
I found some of the info on here, but there are a number of other sights on line. http://www.nysaes.cornell.edu/necfe/pubs/pdf/Venture/venture3_chemical.html
Food? Cosmetics is the most common use of them…
http://ijt.sagepub.com/content/3/5/147.abstract
Food… Blueberries… they naturally occur in blueberries.