Spectrophotometric method for determining gibberellic acid in fermentation broths

Julio Berríos, Andrés Illanes, Germán Aroca

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


A novel method for the quantitative determination of gibberellic acid in fermentation broths has been developed. It is based on the kinetic of the reaction of conversion of gibberellic acid to gibberellenic acid. The method is simple, reliable, faster than most of methods known, and free of the interferences which commonly affect spectrophotometric methods currently in use. Its threshold sensitivity is 0.1 g and its accuracy is greater than 97% for concentrations of gibberellic acid ranging from 0.1 to 1 g 1-1.

Original languageEnglish
Pages (from-to)67-70
Number of pages4
JournalBiotechnology Letters
Issue number1
StatePublished - 2004


  • Gibberella fujikuroi
  • Gibberellenic acid
  • Gibberellic acid


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