dextrin vs maltose

dextrin

noun
  • Any of a range of oligomers of glucose, intermediate in complexity between maltose and starch, produced by the enzymatic hydrolysis of starch; used commercially as adhesives. 

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 dextrin and maltose occurred in a corpus of books? (source: Google Ngram Viewer )