Journal
CHROMATOGRAPHIA
Volume 67, Issue 11-12, Pages 863-867Publisher
SPRINGER HEIDELBERG
DOI: 10.1365/s10337-008-0618-2
Keywords
high-speed counter-current chromatography (HSCCC); mutagenicity; Altertoxin I; Alternaria sp
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Altertoxin I (ATX I) is one of the common mycotoxins produced by genus Alternaria which is a common food pathogen of fruits and grains. To prepare enough quantity of pure ATX I for further research of mutagenicity and toxicology tests, a novel method using preparative high-speed counter-current chromatography (HSCCC) was developed. The ethyl acetate crude extracts of the acetone washes obtained after fermentation of Alternaria sp. was separated using a two-phase solvent system composed of n-hexane-ethyl acetate-methanol-water (2:5:5:6, v/v). Collected fractions were analyzed by LC and identified by EI-MS and NMR analysis. The technique can isolate mg levels of the target compound per run.
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