Method for isolating and purifying recombinant human serum albumin from transgenic rice grain
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United States of America Patent
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Apr 24, 2018
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Apr 1, 2015
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Dec 24, 2010
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Abstract
A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
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