Milk ultrafiltrate as a promising source of angiogenin |
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Authors: | Fedorova T V Komolova G S Rabinovich M L Tikhomirova N A Shalygina A M |
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Affiliation: | Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 117071 Russia. |
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Abstract: | The use of membrane technologies in the production of soft cheese (children's food) is associated with the appearance of up to 80% of angiogenin in the ultrafiltrate. An electrophoretically homogeneous preparation of angiogenin (MW approximately 17 kDa) was obtained from milk ultrafiltrate by two-stage ion-exchange chromatography. The yield of the angiogenin was approximately 60%, which corresponds to a 586-fold purification of the raw material. The obtained preparation retained stability in the course of lyophilization and could be stored at 4 degrees C for a long time without decomposition. |
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