[Method of separating and determining deacetylcephalosporin C in the fermentation media of Acremonium chrysogenum].

During fermentation of Acremonium chrysogenum, known cephalosporin-producing organism, there is formed, in addition, the main metabolite cephalosporin C. Its 3-desacetyl derivative, desacetylcephalosporin (DACS). The admixture of this derivative is not desirable.