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Purification of CS from young tea leaves. A, Hydroxyapatite chromatography of proteins precipitated with 50% to 80% saturated (NH4)2SO4. B, Shodex IEC QA-824 anion-exchange chromatography of the active fraction from hydroxyapatite chromatography. C, HiLoad Superdex 200 gel filtration of the elution from adenosine-agarose chromatography. The dotted lines indicate A280 and solid circles represent CS activity.
