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    Question

    A process uses gases like CO2 at high pressure to

    extract food components known as a)    Solvent extraction b)    Supercritical fluid extraction c)    Steam distillation d)    All of the above
    A Only a is correct Correct Answer Incorrect Answer
    B Only b is correct Correct Answer Incorrect Answer
    C A & c are correct Correct Answer Incorrect Answer
    D A & B both are correct Correct Answer Incorrect Answer
    E All are correct Correct Answer Incorrect Answer

    Solution

    Supercritical fluid extraction (SFE) is a method in which supercritical fluid as an extraction medium is added to substances containing target components, and extraction is performed based on differences in solubility. Because the critical temperature of carbon dioxide is only 31 °C, extraction is possible close to room temperature. Furthermore, extraction can be carried out in a carbon dioxide atmosphere without oxygen.

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