To identify the isoelectric point of casein, do you need to identify the pH at which casein is insoluble?
Added by Ashley B.
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The isoelectric point is the pH at which a protein, such as casein, has no net charge and is least soluble in solution. Show more…
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Experiment No. 4 ISOLATION OF PROTEINS I. Data Isoelectric Point of Casein in Milk Arrange Test Tubes 1 to 9 according to increasing order of turbidity (i.e. the least turbid to the most turbid). II. Questions 1. How does your determination of the isoelectric point of casein compare with that reported in the literature? 2. What property of protein at isoelectric point does this experiment illustrate?
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How does your determination of the isoelectric point of casein compare with that reported in the literature?
Isolation and Identification of Casein PRE-LAB QUESTIONS 1) Casein has an isoelectric point of 4.6. What is the charge of casein in its native environment, milk? 2) How do you separate the fat from the protein in the casein precipitate? Dissolving in alcohol and centrifugation.
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