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Which of the following is used in the precipitation of dextrans?

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in Fermentation Technology by (72.1k points)
Which of the following is used in the precipitation of dextrans?

(a) Methanol

(b) PEG

(c) Ammonium sulphate

(d) Sodium sulphate

The question was asked in my homework.

I need to ask this question from Fermentation Products Recovery and Purification topic in division Recovery and Purification of Fermentation Products, Effluent Treatment, Bioreactor Design Considerations of Fermentation Technology

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Right choice is (a) Methanol

Explanation: Organic solvents like methanol, ethanol can be used in the precipitation of proteins. This is due to the change in dielectric properties of the solution. Dextrans can be precipitated out of a broth by the addition of methanol.

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