glucose vs high fructose corn syrup

glucose

noun
  • A simple monosaccharide (sugar) with a molecular formula of C₆H₁₂O₆; it is a principle source of energy for cellular metabolism. 

high fructose corn syrup

noun
  • Any of many corn syrups that has undergone an enzymatic processing to convert some of its glucose into fructose to produce a desired sweetness 

How often have the words glucose and high fructose corn syrup occurred in a corpus of books? (source: Google Ngram Viewer )