Behavioral Objectives

          Chapter 14

          Purdue griffin

          1. Define and/or identify:

          • exudate
          • tear
          • protein-polysaccharide (vs. glycoprotein)
          2. List the 4 exudate gums.

          3. Give the sources of gum arabic and gum tragacanth.

          4. Explain in molecular terms why gum arabic has the ability to both emulsify and stabilize emulsions.

          5. Describe the three fractions of gum arabic

          6.  Describe the (a) chemical and (b) molecular structures of the fraction of gum arabic responsible for its emulsifying properties

          7.  List the sources of heterogenity of gum arabic.

          8.  Give the two probably most significant variations in gum arabic structures.

          9.  List three unique properties of gum arabic.

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          Web Authors: James R. Daniel, Ph. D. and James N. BeMiller, Ph. D.
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