Extraction of Lipase from Rice Bran Using Aqueous Two-Phase System

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Aqueous two-phase system (ATPS) is an efficient and economical bioseparation technique. In this paper, the PEG2000/(NH4)2SO4 aqueous two-phase system was used to extract lipase from rice bran, and the best conditions were 24% PEG2000, 14% (NH4)2SO4, 15% addition of crude enzyme and pH 7.5. At this condition, the partition coefficient and activity recovery were highest and the activity recovery could achieve 90.29%.

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384-388

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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