gumologist
n.— «Cadbury, which has a gumologist (with a Ph.D. in mineral processing and engineering) on staff, is not interested in the tasters’ personal preferences.…The highlight of the morning was the tasting of several pieces of gum to look for specific attributes.» —“Getting Paid to Chew Gum Can Be Sweet, but Also Sour” by Ken Belson in Whippany, New Jersey New York Times Nov. 26, 2007. (source: Double-Tongued Dictionary)