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Fluorescence spectra of C-PC encapsulated powder samples after 6 months storage (protein concentration used was 0.8 mg/ml for all the resuspended dried powder samples). a Spray dried PEG/dextran aqueous two phase system. b Spray dried PEG/salt aqueous two phase system. c Freeze dried PEG/dextran aqueous two phase system.d Freeze dried PEG/salt aqueous two phase system
