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[Isolation of toxic peptides from Amanita phalloides and their analysis using high-performance liquid chromatography].

The objective of the work is isolation of toxic peptides from Amanita phalloides--amatoxins (alfa-, beta-, gamma-amanitin) and phallotoxins (phalloidin, phallacidin, phallisin, phallisacin) by liquid chromatography on Sephadex LH-20 according to Yocum modification. Seven main toxins were isolated in centigram amounts. The purity of the toxins isolated was verified by the characteristics of their absorbance spectra, by thin layer chromatography (TLC) and high-performance liquid chromatography on reversed phase (RP-HPLC). The fraction of acid phallotoxins which appears homogenous in TLC and Sephadex LH-20 was separated into 5 substances (four of which are phallotoxins) by preparative RP-HPLC technique. The toxins isolated are sufficiently pure to be used as standards in HPLC.