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【Daily Question】Theoretical Foundation 2019.5.28

2019-05-28View Original

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Multiple-choice question: Homogeneous milk is an emulsion, and the method to precipitate the fat and proteins from it is: ( ) A. Adding some alcohol B. Leaving the milk to stand C. Filtering D. Adding acid. Answer: D. Milk is an emulsion in which milk fat is dispersed in water; adding an acid, a strong electrolyte, breaks down this emulsion, causing the fat to separate from the water. Hint: The answer can be seen in the reply

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