dextrose vs maltose

dextrose

noun
  • The naturally-occurring dextrorotatory form of glucose monosaccharide molecule. 

maltose

noun
  • A disaccharide, C₁₂H₂₂O₁₁ formed from the digestion of starch by amylase; is converted to glucose by maltase; it is an isomer of trehalose 

How often have the words dextrose and maltose occurred in a corpus of books? (source: Google Ngram Viewer )