Abstract

Abstract : The presence of acetyl groups in vitellenin was confirmed by hydrazinolysis according to the DNP method of Phillips. After hydrazinolysis of 10-30 mg of vitellenin at 100C for 17 hours, acetic acid DNP-hydrazide was identified by chromatography. Since no trace of this hydrazide was found after hydrazinolysis at room temperature for 1 hour, vitellenin contains N-acetyl, but no Oacetyl, groups. (Author)

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