3. Formation and Composition of Film from Milk a. Place 10 mL of fresh milk in an evaporating dish. b. Boil and observe the formation of film. Observation: c. Remove the film and then boil again. Observation: d. Test the film with Biuret's test and Acrolein test. Test Performed Result with Milk Film Substance present Biuret's test Acrolein test Guide Questions: 1. What can you conclude regarding the chemical composition of the film formed? e. Get 10 mL fresh milk, then acidify it with acetic acid, and repeat the above experiment. 2. Did you get a film on boiling sour milk? 3. Explain the mechanism involved in the formation of film. B. Curdling of Milk
3. Formation and Composition of Film from Milk a. Place 10 mL of fresh milk in an evaporating dish. b. Boil and observe the formation of film. Observation: c. Remove the film and then boil again. Observation: d. Test the film with Biuret's test and Acrolein test. Test Performed Result with Milk Film Substance present Biuret's test Acrolein test Guide Questions: 1. What can you conclude regarding the chemical composition of the film formed? e. Get 10 mL fresh milk, then acidify it with acetic acid, and repeat the above experiment. 2. Did you get a film on boiling sour milk? 3. Explain the mechanism involved in the formation of film. B. Curdling of Milk
Basic Clinical Laboratory Techniques 6E
6th Edition
ISBN:9781133893943
Author:ESTRIDGE
Publisher:ESTRIDGE
Chapter6: Basic Clinical Chemistry
Section6.8: Fecal Occult Blood Test
Problem 1CS
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