User:Floriane Briere/Notebook/CHEM-496/2011/09/06

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Today's experiment consists on creating a zein protein film. This film is a biodegradable one and has many applications, especially in the food industry.


  1. Prepare 10ml of a 90%EtOH solution (9ml EtOH + 1ml H2O)
  2. Separately, add 1g zein + 0,24ml glycérol
  3. Complete with the 90%EtOH solution to reach 10ml
  4. Put 5g of this solution in a 9 cm diameter plastic Petri dish
  5. Heat at 40°C for 24 h


After 24hours in the oven, we obtained a thin, flexible, yellow protein film. We observed it under the microscope.

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