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Three-phase partitioning (TPP) is a novel separation process used for the extraction and purification of biomolecules. The biomolecules are recovered in a purified form at the interface (precipitate), while the contaminants partition in t-butanol and aqueous phases. Peroxidase from the leaves of Ipomoea palmata was purified by using TPP. The ratio of the crude extract to t-butanol of 1:1 and 30% ammonium...
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